74VHC138TTR,74VHC138TTR,74VHC138TTR,74VHC138MTR,74VHC138MTR, 规格书,Datasheet 资料
74系列芯片功能大全
74系列芯片功能大全7400 TTL 2输入端四与非门7401 TTL 集电极开路2输入端四与非门7402 TTL 2输入端四或非门7403 TTL 集电极开路2输入端四与非门7404 TTL 六反相器7405 TTL 集电极开路六反相器7406 TTL 集电极开路六反相高压驱动器7407 TTL 集电极开路六正相高压驱动器7408 TTL 2输入端四与门7409 TTL 集电极开路2输入端四与门7410 TTL 3输入端3与非门74107 TTL 带清除主从双J-K触发器74109 TTL 带预置清除正触发双J-K触发器7411 TTL 3输入端3与门74112 TTL 带预置清除负触发双J-K触发器7412 TTL 开路输出3输入端三与非门74121 TTL 单稳态多谐振荡器74122 TTL 可再触发单稳态多谐振荡器74123 TTL 双可再触发单稳态多谐振荡器74125 TTL 三态输出高有效四总线缓冲门74126 TTL 三态输出低有效四总线缓冲门7413 TTL 4输入端双与非施密特触发器74132 TTL 2输入端四与非施密特触发器74133 TTL 13输入端与非门74136 TTL 四异或门74138 TTL 3-8线译码器/复工器74139 TTL 双2-4线译码器/复工器7414 TTL 六反相施密特触发器74145 TTL BCD—十进制译码/驱动器7415 TTL 开路输出3输入端三与门74150 TTL 16选1数据选择/多路开关74151 TTL 8选1数据选择器74153 TTL 双4选1数据选择器74154 TTL 4线—16线译码器74155 TTL 图腾柱输出译码器/分配器74156 TTL 开路输出译码器/分配器74157 TTL 同相输出四2选1数据选择器74158 TTL 反相输出四2选1数据选择器7416 TTL 开路输出六反相缓冲/驱动器74160 TTL 可预置BCD异步清除计数器74161 TTL 可予制四位二进制异步清除计数器74162 TTL 可预置BCD同步清除计数器74163 TTL 可予制四位二进制同步清除计数器74164 TTL 八位串行入/并行输出移位寄存器74165 TTL 八位并行入/串行输出移位寄存器74166 TTL 八位并入/串出移位寄存器74169 TTL 二进制四位加/减同步计数器7417 TTL 开路输出六同相缓冲/驱动器74170 TTL 开路输出4×4寄存器堆74173 TTL 三态输出四位D型寄存器74174 TTL 带公共时钟和复位六D触发器74175 TTL 带公共时钟和复位四D触发器74180 TTL 9位奇数/偶数发生器/校验器74181 TTL 算术逻辑单元/函数发生器74185 TTL 二进制—BCD代码转换器74190 TTL BCD同步加/减计数器74191 TTL 二进制同步可逆计数器74192 TTL 可预置BCD双时钟可逆计数器74193 TTL 可预置四位二进制双时钟可逆计数器74194 TTL 四位双向通用移位寄存器74195 TTL 四位并行通道移位寄存器74196 TTL 十进制/二-十进制可预置计数锁存器74197 TTL 二进制可预置锁存器/计数器7420 TTL 4输入端双与非门7421 TTL 4输入端双与门7422 TTL 开路输出4输入端双与非门74221 TTL 双/单稳态多谐振荡器74240 TTL 八反相三态缓冲器/线驱动器74241 TTL 八同相三态缓冲器/线驱动器74243 TTL 四同相三态总线收发器74244 TTL 八同相三态缓冲器/线驱动器74245 TTL 八同相三态总线收发器74247 TTL BCD—7段15V输出译码/驱动器74248 TTL BCD—7段译码/升压输出驱动器74249 TTL BCD—7段译码/开路输出驱动器74251 TTL 三态输出8选1数据选择器/复工器74253 TTL 三态输出双4选1数据选择器/复工器74256 TTL 双四位可寻址锁存器74257 TTL 三态原码四2选1数据选择器/复工器74258 TTL 三态反码四2选1数据选择器/复工器74259 TTL 八位可寻址锁存器/3-8线译码器7426 TTL 2输入端高压接口四与非门74260 TTL 5输入端双或非门74266 TTL 2输入端四异或非门7427 TTL 3输入端三或非门74273 TTL 带公共时钟复位八D触发器74279 TTL 四图腾柱输出S-R锁存器7428 TTL 2输入端四或非门缓冲器74283 TTL 4位二进制全加器74290 TTL 二/五分频十进制计数器74293 TTL 二/八分频四位二进制计数器74295 TTL 四位双向通用移位寄存器74298 TTL 四2输入多路带存贮开关74299 TTL 三态输出八位通用移位寄存器7430 TTL 8输入端与非门7432 TTL 2输入端四或门74322 TTL 带符号扩展端八位移位寄存器74323 TTL 三态输出八位双向移位/存贮寄存器7433 TTL 开路输出2输入端四或非缓冲器74347 TTL BCD—7段译码器/驱动器74352 TTL 双4选1数据选择器/复工器74353 TTL 三态输出双4选1数据选择器/复工器74365 TTL 门使能输入三态输出六同相线驱动器74365 TTL 门使能输入三态输出六同相线驱动器74366 TTL 门使能输入三态输出六反相线驱动器74367 TTL 4/2线使能输入三态六同相线驱动器74368 TTL 4/2线使能输入三态六反相线驱动器7437 TTL 开路输出2输入端四与非缓冲器74373 TTL 三态同相八D锁存器74374 TTL 三态反相八D锁存器74375 TTL 4位双稳态锁存器74377 TTL 单边输出公共使能八D锁存器74378 TTL 单边输出公共使能六D锁存器74379 TTL 双边输出公共使能四D锁存器7438 TTL 开路输出2输入端四与非缓冲器74380 TTL 多功能八进制寄存器7439 TTL 开路输出2输入端四与非缓冲器74390 TTL 双十进制计数器74393 TTL 双四位二进制计数器7440 TTL 4输入端双与非缓冲器7442 TTL BCD—十进制代码转换器74352 TTL 双4选1数据选择器/复工器74353 TTL 三态输出双4选1数据选择器/复工器74365 TTL 门使能输入三态输出六同相线驱动器74366 TTL 门使能输入三态输出六反相线驱动器74367 TTL 4/2线使能输入三态六同相线驱动器74368 TTL 4/2线使能输入三态六反相线驱动器7437 TTL 开路输出2输入端四与非缓冲器74373 TTL 三态同相八D锁存器74374 TTL 三态反相八D锁存器74375 TTL 4位双稳态锁存器74377 TTL 单边输出公共使能八D锁存器74378 TTL 单边输出公共使能六D锁存器74379 TTL 双边输出公共使能四D锁存器7438 TTL 开路输出2输入端四与非缓冲器74380 TTL 多功能八进制寄存器7439 TTL 开路输出2输入端四与非缓冲器74390 TTL 双十进制计数器74393 TTL 双四位二进制计数器7440 TTL 4输入端双与非缓冲器7442 TTL BCD—十进制代码转换器74447 TTL BCD—7段译码器/驱动器7445 TTL BCD—十进制代码转换/驱动器74450 TTL 16:1多路转接复用器多工器74451 TTL 双8:1多路转接复用器多工器74453 TTL 四4:1多路转接复用器多工器7446 TTL BCD—7段低有效译码/驱动器74460 TTL 十位比较器74461 TTL 八进制计数器74465 TTL 三态同相2与使能端八总线缓冲器74466 TTL 三态反相2与使能八总线缓冲器74467 TTL 三态同相2使能端八总线缓冲器74468 TTL 三态反相2使能端八总线缓冲器74469 TTL 八位双向计数器7447 TTL BCD—7段高有效译码/驱动器7448 TTL BCD—7段译码器/内部上拉输出驱动74490 TTL 双十进制计数器74491 TTL 十位计数器74498 TTL 八进制移位寄存器7450 TTL 2-3/2-2输入端双与或非门74502 TTL 八位逐次逼近寄存器74503 TTL 八位逐次逼近寄存器7451 TTL 2-3/2-2输入端双与或非门74533 TTL 三态反相八D锁存器74534 TTL 三态反相八D锁存器7454 TTL 四路输入与或非门74540 TTL 八位三态反相输出总线缓冲器7455 TTL 4输入端二路输入与或非门74563 TTL 八位三态反相输出触发器74564 TTL 八位三态反相输出D触发器74573 TTL 八位三态输出触发器74574 TTL 八位三态输出D触发器74645 TTL 三态输出八同相总线传送接收器74670 TTL 三态输出4×4寄存器堆7473 TTL 带清除负触发双J-K触发器7474 TTL 带置位复位正触发双D触发器7476 TTL 带预置清除双J-K触发器7483 TTL 四位二进制快速进位全加器7485 TTL 四位数字比较器7486 TTL 2输入端四异或门7490 TTL 可二/五分频十进制计数器7493 TTL 可二/八分频二进制计数器7495 TTL 四位并行输入\输出移位寄存器7497 TTL 6位同步二进制乘法器?常用74系列标准数字电路的中文名称资料器件代号器件名称74 74LS 74HC00 四2输入端与非门√√√01 四2输入端与非门(OC) √√02 四2输入端或非门√√√03 四2输入端与非门(OC) √√04 六反相器√√√05 六反相器(OC) √√06 六高压输出反相器(OC,30V) √√07 六高压输出缓冲,驱动器(OC,30V) √√√08 四2输入端与门√√√09 四2输入端与门(OC) √√√10 三3输入端与非门√√√11 三3输入端与门√√12 三3输入端与非门(OC) √√√13 双4输入端与非门√√√14 六反相器√√√15 三3输入端与门(OC) √√16 六高压输出反相器(OC,15V) √17 六高压输出缓冲,驱动器(OC,15V) √20 双4输入端与非门√√√21 双4输入端与门√√√22 双4输入端与非门(OC) √√25 双4输入端或非门(有选通端) √√√26 四2输入端高压输出与非缓冲器√√√27 三3输入端或非门√√√28 四2输入端或非缓冲器√√√30 8输入端与非门√√√32 四2输入端或门√√√33 四2输入端或非缓冲器(OC) √√37 四2输入端与非缓冲器√√38 四2输入端与非缓冲器(OC) √√40 双4输入端与非缓冲器√√√42 4线-10线译码器(BCD输入) √√43 4线-10线译码器(余3码输入) √44 4线-10线译码器(余3葛莱码输入) √48 4线-7段译码器√49 4线-7段译码器√50 双2路2-2输入与或非门√√√51 2路3-3输入,2路2-2输入与或非门√√√52 4路2-3-2-2输入与或门√53 4路2-2-2-2输入与或非门√54 4路2-3-3-2输入与或非门√√55 2路4-4输入与或非门√60 双4输入与扩展器√√61 三3输入与扩展器√62 4路2-3-3-2输入与或扩展器√64 4路4-2-3-2输入与或非门√65 4路4-2-3-2输入与或非门(OC) √70 与门输入J-K触发器√71 与或门输入J-K触发器√72 与门输入J-K触发器√74 双上升沿D型触发器√√78 双D型触发器√√85 四位数值比较器√86 四2输入端异或门√√√87 4位二进制原码/反码√95 4位移位寄存器√101 与或门输入J-K触发器√102 与门输入J-K触发器√107 双主-从J-K触发器√108 双主-从J-K触发器√109 双主-从J-K触发器√110 与门输入J-K触发器√111 双主-从J-K触发器√√112 双下降沿J-K触发器√113 双下降沿J-K触发器√114 双下降沿J-K触发器√116 双4位锁存器√120 双脉冲同步驱动器√121 单稳态触发器√√√122 可重触发单稳态触发器√√√123 可重触发双稳态触发器√√√125 四总线缓冲器√√√126 四总线缓冲器√√√128 四2输入端或非线驱动器√√√。
74LVC138AD-T中文资料
15 14 13 12 11 10 9 7
1 2 3
A0 A1 A2
Y0 Y1 Y2 Y3
15 14 13 12 11 10 9 7
1 2 3
0 G 2 0 7
2 3 4
4 5 6
E1 E2 E3
Y4 Y5 Y6 Y7
MNA370
4 5 6
&
5 6 7
EN 7
MNA371(a)源自(b)Fig.3 Logic symbol.
74LVC138A
MATERIAL plastic plastic plastic plastic
CODE SOT109-1 SOT338-1 SOT403-1 SOT763-1
Y5 H H H H H H H H L H H
Y6 H H H H H H H H H L H
Y7 H H H H H H H H H H L
Fig.1 Pin configuration SO16 and (T)SSOP16.
Fig.2 Pin configuration DHVQFN16.
2003 May 06
4
元器件交易网
Philips Semiconductors
Product specification
ORDERING INFORMATION PACKAGE TYPE NUMBER TEMPERATURE RANGE 74LVC138AD 74LVC138ADB 74LVC138APW 74LVC138ABQ FUNCTION TABLE See note 1. INPUT E1 H X X L L L L L L L L Note 1. H = HIGH voltage level; L = LOW voltage level; X = don’t care. E2 X H X L L L L L L L L E3 X X L H H H H H H H H A0 X X X L H L H L H L H A1 X X X L L H H L L H H A2 X X X L L L L H H H H Y0 H H H L H H H H H H H Y1 H H H H L H H H H H H Y2 H H H H H L H H H H H OUTPUT Y3 H H H H H H L H H H H Y4 H H H H H H H L H H H −40 to +125 °C −40 to +125 °C −40 to +125 °C −40 to +125 °C PINS 16 16 16 16 PACKAGE SO16 SSOP16 TSSOP16 DHVQFN16
74系列芯片功能大全
74系列芯片功能大全同型号的74系列、74HC系列、74LS系列芯片，逻辑功能上是一样的。
74LSxx、74HCxx的使用说明可参阅74xx的使用说明。
有些型号里包含了几种型号，如74HC161资料里包含了74HC160、74HC161、74HC162、74HC163四种芯片的功能。
7400 TTL 2输入端四与非门7401 TTL 集电极开路2输入端四与非门7402 TTL 2输入端四或非门7403 TTL 集电极开路2输入端四与非门7404 TTL 六反相器7405 TTL 集电极开路六反相器7406 TTL 集电极开路六反相高压驱动器7407 TTL 集电极开路六正相高压驱动器7408 TTL 2输入端四与门7409 TTL 集电极开路2输入端四与门7410 TTL 3输入端3与非门74107 TTL 带清除主从双J-K触发器74109 TTL 带预置清除正触发双J-K触发器7411 TTL 3输入端3与门74112 TTL 带预置清除负触发双J-K触发器7412 TTL 开路输出3输入端三与非门74121 TTL 单稳态多谐振荡器74122 TTL 可再触发单稳态多谐振荡器74123 TTL 双可再触发单稳态多谐振荡器74125 TTL 三态输出高有效四总线缓冲门74126 TTL 三态输出低有效四总线缓冲门7413 TTL 4输入端双与非施密特触发器74132 TTL 2输入端四与非施密特触发器74133 TTL 13输入端与非门74136 TTL 四异或门74138 TTL 3-8线译码器/复工器74139 TTL 双2-4线译码器/复工器7414 TTL 六反相施密特触发器74145 TTL BCD—十进制译码/驱动器7415 TTL 开路输出3输入端三与门74150 TTL 16选1数据选择/多路开关74151 TTL 8选1数据选择器74153 TTL 双4选1数据选择器74154 TTL 4线—16线译码器74155 TTL 图腾柱输出译码器/分配器74156 TTL 开路输出译码器/分配器74157 TTL 同相输出四2选1数据选择器74158 TTL 反相输出四2选1数据选择器7416 TTL 开路输出六反相缓冲/驱动器74160 TTL 可预置BCD异步清除计数器74161 TTL 可予制四位二进制异步清除计数器74162 TTL 可预置BCD同步清除计数器74163 TTL 可予制四位二进制同步清除计数器74164 TTL 八位串行入/并行输出移位寄存器74165 TTL 八位并行入/串行输出移位寄存器74166 TTL 八位并入/串出移位寄存器74169 TTL 二进制四位加/减同步计数器7417 TTL 开路输出六同相缓冲/驱动器74170 TTL 开路输出4×4寄存器堆74173 TTL 三态输出四位D型寄存器74174 TTL 带公共时钟和复位六D触发器74175 TTL 带公共时钟和复位四D触发器74180 TTL 9位奇数/偶数发生器/校验器74181 TTL 算术逻辑单元/函数发生器74185 TTL 二进制—BCD代码转换器74190 TTL BCD同步加/减计数器74191 TTL 二进制同步可逆计数器74192 TTL 可预置BCD双时钟可逆计数器74193 TTL 可预置四位二进制双时钟可逆计数器74194 TTL 四位双向通用移位寄存器74195 TTL 四位并行通道移位寄存器74196 TTL 十进制/二-十进制可预置计数锁存器74197 TTL 二进制可预置锁存器/计数器7420 TTL 4输入端双与非门7421 TTL 4输入端双与门7422 TTL 开路输出4输入端双与非门74221 TTL 双/单稳态多谐振荡器74240 TTL 八反相三态缓冲器/线驱动器74241 TTL 八同相三态缓冲器/线驱动器74243 TTL 四同相三态总线收发器74244 TTL 八同相三态缓冲器/线驱动器74245 TTL 八同相三态总线收发器74247 TTL BCD—7段15V输出译码/驱动器74248 TTL BCD—7段译码/升压输出驱动器74249 TTL BCD—7段译码/开路输出驱动器74251 TTL 三态输出8选1数据选择器/复工器74253 TTL 三态输出双4选1数据选择器/复工器74256 TTL 双四位可寻址锁存器74257 TTL 三态原码四2选1数据选择器/复工器74258 TTL 三态反码四2选1数据选择器/复工器74259 TTL 八位可寻址锁存器/3-8线译码器7426 TTL 2输入端高压接口四与非门74260 TTL 5输入端双或非门74266 TTL 2输入端四异或非门7427 TTL 3输入端三或非门74273 TTL 带公共时钟复位八D触发器74279 TTL 四图腾柱输出S-R锁存器7428 TTL 2输入端四或非门缓冲器74283 TTL 4位二进制全加器74290 TTL 二/五分频十进制计数器74293 TTL 二/八分频四位二进制计数器74295 TTL 四位双向通用移位寄存器74298 TTL 四2输入多路带存贮开关74299 TTL 三态输出八位通用移位寄存器7430 TTL 8输入端与非门7432 TTL 2输入端四或门74322 TTL 带符号扩展端八位移位寄存器74323 TTL 三态输出八位双向移位/存贮寄存器7433 TTL 开路输出2输入端四或非缓冲器74347 TTL BCD—7段译码器/驱动器74352 TTL 双4选1数据选择器/复工器74353 TTL 三态输出双4选1数据选择器/复工器74365 TTL 门使能输入三态输出六同相线驱动器74365 TTL 门使能输入三态输出六同相线驱动器74366 TTL 门使能输入三态输出六反相线驱动器74367 TTL 4/2线使能输入三态六同相线驱动器74368 TTL 4/2线使能输入三态六反相线驱动器7437 TTL 开路输出2输入端四与非缓冲器74373 TTL 三态同相八D锁存器74374 TTL 三态反相八D锁存器74375 TTL 4位双稳态锁存器74377 TTL 单边输出公共使能八D锁存器74378 TTL 单边输出公共使能六D锁存器74379 TTL 双边输出公共使能四D锁存器7438 TTL 开路输出2输入端四与非缓冲器74380 TTL 多功能八进制寄存器7439 TTL 开路输出2输入端四与非缓冲器74390 TTL 双十进制计数器74393 TTL 双四位二进制计数器7440 TTL 4输入端双与非缓冲器7442 TTL BCD—十进制代码转换器74352 TTL 双4选1数据选择器/复工器74353 TTL 三态输出双4选1数据选择器/复工器74365 TTL 门使能输入三态输出六同相线驱动器74366 TTL 门使能输入三态输出六反相线驱动器74367 TTL 4/2线使能输入三态六同相线驱动器74368 TTL 4/2线使能输入三态六反相线驱动器7437 TTL 开路输出2输入端四与非缓冲器74373 TTL 三态同相八D锁存器74374 TTL 三态反相八D锁存器74375 TTL 4位双稳态锁存器74377 TTL 单边输出公共使能八D锁存器74378 TTL 单边输出公共使能六D锁存器74379 TTL 双边输出公共使能四D锁存器7438 TTL 开路输出2输入端四与非缓冲器74380 TTL 多功能八进制寄存器7439 TTL 开路输出2输入端四与非缓冲器74390 TTL 双十进制计数器74393 TTL 双四位二进制计数器7440 TTL 4输入端双与非缓冲器7442 TTL BCD—十进制代码转换器74447 TTL BCD—7段译码器/驱动器7445 TTL BCD—十进制代码转换/驱动器74450 TTL 16:1多路转接复用器多工器74451 TTL 双8:1多路转接复用器多工器74453 TTL 四4:1多路转接复用器多工器7446 TTL BCD—7段低有效译码/驱动器74460 TTL 十位比较器74461 TTL 八进制计数器74465 TTL 三态同相2与使能端八总线缓冲器74466 TTL 三态反相2与使能八总线缓冲器74467 TTL 三态同相2使能端八总线缓冲器74468 TTL 三态反相2使能端八总线缓冲器74469 TTL 八位双向计数器7447 TTL BCD—7段高有效译码/驱动器7448 TTL BCD—7段译码器/内部上拉输出驱动74490 TTL 双十进制计数器74491 TTL 十位计数器74498 TTL 八进制移位寄存器7450 TTL 2-3/2-2输入端双与或非门74502 TTL 八位逐次逼近寄存器74503 TTL 八位逐次逼近寄存器7451 TTL 2-3/2-2输入端双与或非门74533 TTL 三态反相八D锁存器74534 TTL 三态反相八D锁存器7454 TTL 四路输入与或非门74540 TTL 八位三态反相输出总线缓冲器7455 TTL 4输入端二路输入与或非门74563 TTL 八位三态反相输出触发器74564 TTL 八位三态反相输出D触发器74573 TTL 八位三态输出触发器74574 TTL 八位三态输出D触发器74645 TTL 三态输出八同相总线传送接收器74670 TTL 三态输出4×4寄存器堆7473 TTL 带清除负触发双J-K触发器7474 TTL 带置位复位正触发双D触发器7476 TTL 带预置清除双J-K触发器7483 TTL 四位二进制快速进位全加器7485 TTL 四位数字比较器7486 TTL 2输入端四异或门7490 TTL 可二/五分频十进制计数器7493 TTL 可二/八分频二进制计数器7495 TTL 四位并行输入\输出移位寄存器7497 TTL 6位同步二进制乘法器常用74系列标准数字电路的中文名称资料器件代号器件名称 74 74LS 74HC00 四2输入端与非门√√√01 四2输入端与非门(OC) √√02 四2输入端或非门√√√03 四2输入端与非门(OC) √√04 六反相器√√√05 六反相器(OC) √√06 六高压输出反相器(OC,30V) √√07 六高压输出缓冲,驱动器(OC,30V) √√√08 四2输入端与门√√√09 四2输入端与门(OC) √√√10 三3输入端与非门√√√11 三3输入端与门√√12 三3输入端与非门(OC) √√√13 双4输入端与非门√√√14 六反相器√√√15 三3输入端与门 (OC) √√16 六高压输出反相器(OC,15V) √17 六高压输出缓冲,驱动器(OC,15V) √20 双4输入端与非门√√√21 双4输入端与门√√√22 双4输入端与非门(OC) √√25 双4输入端或非门(有选通端) √√√26 四2输入端高压输出与非缓冲器√√√27 三3输入端或非门√√√28 四2输入端或非缓冲器√√√30 8输入端与非门√√√32 四2输入端或门√√√33 四2输入端或非缓冲器(OC) √√37 四2输入端与非缓冲器√√38 四2输入端与非缓冲器(OC) √√40 双4输入端与非缓冲器√√√42 4线-10线译码器(BCD输入) √√43 4线-10线译码器(余3码输入) √44 4线-10线译码器(余3葛莱码输入) √48 4线-7段译码器√49 4线-7段译码器√50 双2路2-2输入与或非门√√√51 2路3-3输入,2路2-2输入与或非门√√√52 4路2-3-2-2输入与或门√53 4路2-2-2-2输入与或非门√54 4路2-3-3-2输入与或非门√√55 2路4-4输入与或非门√60 双4输入与扩展器√√61 三3输入与扩展器√62 4路2-3-3-2输入与或扩展器√64 4路4-2-3-2输入与或非门√65 4路4-2-3-2输入与或非门(OC) √70 与门输入J-K触发器√71 与或门输入J-K触发器√72 与门输入J-K触发器√74 双上升沿D型触发器√√78 双D型触发器√√85 四位数值比较器√86 四2输入端异或门√√√87 4位二进制原码/反码√95 4位移位寄存器√101 与或门输入J-K触发器√102 与门输入J-K触发器√107 双主-从J-K触发器√108 双主-从J-K触发器√109 双主-从J-K触发器√110 与门输入J-K触发器√111 双主-从J-K触发器√√112 双下降沿J-K触发器√113 双下降沿J-K触发器√114 双下降沿J-K触发器√116 双4位锁存器√120 双脉冲同步驱动器√121 单稳态触发器√√√122 可重触发单稳态触发器√√√123 可重触发双稳态触发器√√√125 四总线缓冲器√√√126 四总线缓冲器√√√128 四2输入端或非线驱动器√√√132 四2输入端与非门√√√。
组合逻辑电路的类型
组合逻辑电路的类型在前面的芝识课堂中，我们跟大家简单介绍了逻辑IC的基本知识和分类，并且特别提到CMOS逻辑IC因为成本、系统复杂度和功耗的平衡性很好，因此得到了最广泛应用，同时也和大家一起详细了解了CMOS逻辑IC的基本操作。
逻辑IC作为一种对一个或多个数字输入（信号）执行基本逻辑运算以产生数字输出信号的（半导体）器件，其应用也是非常丰富的，今天就来和芝子一起了解一下吧。
首先我们要明确的是CMOS逻辑IC大致包括两种逻辑，即组合逻辑和时序逻辑。
其中组合逻辑是输出仅为当前输入的纯函数逻辑电路类型，主要包括反相器、缓冲器、双向总线缓冲器、施密特触发器装置、解码器、（多路复用器）、（模拟）多路复用器／多路分解器、模拟开关等；时序逻辑是一种其输出取决于先前输入值的顺序，并由当前输入（如控制信号触发器、锁存器、计数器、移位（寄存器）等）控制的逻辑电路类型。
组合逻辑电路与时序逻辑电路的区别体现在输入输出关系、有无存储（记忆）单元、结构特点上。
首先我们以几个简单的电路部分为例，来介绍组合逻辑电路的基本情况。
1反相器组合逻辑应用中比较常见的是反相器（以74VHC04为例），是一种输出（Y）与输入（A）相反的逻辑门，如图1所示。
图1 逆变器的操作2缓冲器缓冲器（例如74VHC244），缓冲器增加驱动能力以增加可连接的信号线的数量，并执行波形整形。
缓冲区不执行逻辑操作，示意图如图2。
图2 缓冲器的操作3双向总线缓冲器（（收发器））双向总线缓冲器（收发器），比如74VHC245。
双向总线缓冲器（收发器）是一种其I/O引脚可配置为输入和输出以接收和发送数据的逻辑电路。
由于收发器允许通过控制信号（DIR）更改信号方向，所以它沿着总线传输，双向传输数据。
图3显示了收发器的应用示例。
双向使用总线信号时，将总线输入和总线输出都通过上拉电阻连接到VCC或GND，以防止在控制信号（DIR）切换信号时输入信号变为开路（未定义）。
切换信号时请注意不要将输出与总线输出短路。
74系列各个芯片详细介绍
74系列芯片资料程序匠人发表于 2005-10-29 19:20:00 阅读全文(2477) | 回复(0) | 引用通告(0) | 编辑74系列芯片资料反相器驱动器 LS04 LS05 LS06 LS07 LS125 LS240 LS244 LS245与门与非门 LS00 LS08 LS10 LS11 LS20 LS21 LS27 LS30 LS38或门或非门与或非门 LS02 LS32 LS51 LS64 LS65异或门比较器 LS86译码器 LS138 LS139寄存器 LS74 LS175 LS373反相器:Vcc 6A 6Y 5A 5Y 4A 4Y 六非门 74LS04┌┴─┴─┴─┴─┴─┴─┴┐六非门(OC门) 74LS05_ │14 13 12 11 10 9 8│六非门(OC高压输出) 74LS06Y = A ）││ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1Y 2A 2Y 3A 3Y GND驱动器:Vcc 6A 6Y 5A 5Y 4A 4Y┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│Y = A ）│六驱动器(OC高压输出) 74LS07│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1Y 2A 2Y 3A 3Y GNDVcc -4C 4A 4Y -3C 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐_ │14 13 12 11 10 9 8│Y =A+C ）│四总线三态门 74LS125│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘-1C 1A 1Y -2C 2A 2Y GNDVcc -G B1 B2 B3 B4 B8 B6 B7 B8┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8位总线驱动器 74LS245 │20 19 18 17 16 15 14 13 12 11│）│ DIR=1 A=>B│ 1 2 3 4 5 6 7 8 9 10│ DIR=0 B=>A└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘DIR A1 A2 A3 A4 A5 A6 A7 A8 GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器正逻辑与门,与非门:Vcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│Y = AB ）│ 2输入四正与门 74LS08 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐__ │14 13 12 11 10 9 8│Y = AB ）│ 2输入四正与非门 74LS00 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 1C 1Y 3C 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐___ │14 13 12 11 10 9 8│Y = ABC ）│ 3输入三正与非门 74LS10 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 2A 2B 2C 2Y GNDVcc H G Y┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│）│ 8输入与非门 74LS30│ 1 2 3 4 5 6 7│ ________└┬─┬─┬─┬─┬─┬─┬┘ Y = ABCDEFGHA B C D E F GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器正逻辑或门,或非门:Vcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四或门 74LS32│14 13 12 11 10 9 8│）│ Y = A+B│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 4Y 4B 4A 3Y 3B 3A┌┴─┴─┴─┴─┴─┴─┴┐ 2输入四或非门 74LS02│14 13 12 11 10 9 8│ ___）│ Y = A+B│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1Y 1A 1B 2Y 2A 2B GNDVcc 2Y 2B 2A 2D 2E 1F┌┴─┴─┴─┴─┴─┴─┴┐双与或非门 74S51│14 13 12 11 10 9 8│ _____）│ 2Y = AB+DE│ 1 2 3 4 5 6 7│ _______└┬─┬─┬─┬─┬─┬─┬┘ 1Y = ABC+DEF1Y 1A 1B 1C 1D 1E GNDVcc D C B K J Y┌┴─┴─┴─┴─┴─┴─┴┐ 4-2-3-2与或非门 74S64 74S65(OC门) │14 13 12 11 10 9 8│ ______________）│ Y = ABCD+EF+GHI+JK│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘A E F G H I GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器2输入四异或门 74LS86Vcc 4B 4A 4Y 3Y 3B 3A┌┴─┴─┴─┴─┴─┴─┴┐│14 13 12 11 10 9 8│）│ _ _│ 1 2 3 4 5 6 7│ Y=AB+AB└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2Y 2A 2B GND8*2输入比较器 74LS688_Vcc Y B8 A8 B7 A7 B6 A6 B5 A5┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8*2输入比较器 74LS688│20 19 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘CE A1 B1 A2 B2 A3 B3 A4 B4 GND_Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器3-8译码器 74LS138Vcc -Y0 -Y1 -Y2 -Y3 -Y4 -Y5 -Y6 __ _ _ _ __ _ _ __ _ _ __ _ ┌┴─┴─┴─┴─┴─┴─┴─┴┐ Y0=A B C Y1=A B B Y2=A B C Y3=A B C │16 15 14 13 12 11 10 9 │）│ __ _ _ __ _ __ _ __│ 1 2 3 4 5 6 7 8│ Y4=A B C Y5=A B C Y6=A B C Y7=A B C └┬─┬─┬─┬─┬─┬─┬─┬┘A B C -CS0 -CS1 CS2 -Y7 GND双2-4译码器 74LS139Vcc -2G 2A 2B -Y0 -Y1 -Y2 -Y3 __ __ __ __ __ __ __ __┌┴─┴─┴─┴─┴─┴─┴─┴┐ Y0=2A 2B Y1=2A 2B Y2=2A 2B Y3=2A 2B │16 15 14 13 12 11 10 9 │）│ __ __ __ __ __ __ __ __│ 1 2 3 4 5 6 7 8│ Y0=1A 1B Y1=1A 1B Y2=1A 1B Y3=1A 1B └┬─┬─┬─┬─┬─┬─┬─┬┘-1G 1A 1B -Y0 -Y1 -Y2 -Y3 GND8*2输入比较器 74LS688_Vcc Y B8 A8 B7 A7 B6 A6 B5 A5┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8*2输入比较器 74LS688│20 19 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘CE A1 B1 A2 B2 A3 B3 A4 B4 GND_Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8寄存器:Vcc 2CR 2D 2Ck 2St 2Q -2Q┌┴─┴─┴─┴─┴─┴─┴┐双D触发器 74LS74│14 13 12 11 10 9 8 │）││ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1Cr 1D 1Ck 1St 1Q -1Q GNDVcc 8Q 8D 7D 7Q 6Q 6D 5D 5Q ALE┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐ 8位锁存器 74LS373│20 19 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘-OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND型号器件名称厂牌[数据表]SN7400四2输入端与非门 TI[DATA]SN7401四2输入端与非门(OC) SN7402四2输入端或非门 TI[DATA]SN7403四2输入端与非门(OC)TI[DATA]SN7404六反相器 TI[DATA]SN7405六反相器(OC)TI[DATA]SN7406六高压输出反相器 (OC,30V)TI[DATA]SN7407六高压输出缓冲,驱动器(OC,30V)TI[DATA]SN7408四2输入端与门 TI[DATA]SN7409四2输入端与门(OC)TI[DATA]SN7410三3输入端与非门 TI[DATA]SN7412三3输入端与非门(OC)TI[DATA]SN7413双4输入端与非门 TI[DATA]SN7414六反相器TI[DATA]SN7416六高压输出反相缓冲/驱动器 I[DATA]SN7417六高压输出缓冲/驱动器(OC,15V)TI[DATA]SN7420双4输入端与非门 TI[DATA]SN7422双4输入端与非门(OC)TI[DATA]SN7423可扩展双4输入端或非门 TI[DATA]SN7425双4输入端或非门TI[DATA]SN7426四2输入端高压输出与非缓冲器 [DATA]SN7427三3输入端或非门TI[DATA]SN7428四2输入端或非缓冲器 I[DATA]SN74308输入端与非门TI[DATA]SN7432四2输入端或门。
74系列芯片数据手册大全
74系列芯片数据手册大全本文将为大家介绍74系列芯片数据手册的大全，主要是介绍各种74系列芯片的应用以及参数等相关信息。
一、常用的74系列芯片有哪些？74系列芯片是最常用的数字集成电路之一，主要包括以下几种芯片：1. 74LS00：四个二输入与门。
6. 74LS74：双D触发器。
8. 74LS138：三线八选一译码器。
9. 74LS151：八路数据选择器/复用器。
10. 74LS161：四位二进制同步计数器。
11. 74LS240：三态缓冲器。
13. 74LS373：透明锁存器。
16. 74LS595：8位移位寄存器。
二、74LS00芯片的应用及参数74LS00芯片是一种四个二输入与门的数字集成电路，通常用于逻辑门的实现和数字电路的设计。
该芯片可以从以下几方面进行分析：1. 参数描述该芯片内部具有四个与门，每个与门都有两个输入端和一个输出端。
输入端的输入电压范围通常为0V-5V，输出电平为低电平（0V）或高电平（5V），输出电流为16mA。
该芯片的工作电压范围为4.75V-5.25V，工作温度范围为0°C-70°C或-40°C-85°C。
2. 应用领域74LS00芯片通常用于逻辑门的实现和数字电路的设计，例如计数器、锁存器、转换器、寄存器等电路。
由于其适用于逻辑运算，因此在数字电路的开发中已经成为一种非常重要的芯片。
3. 管脚说明该芯片的14个管脚可以分为四类：电源引脚（VCC和GND）、输入引脚（A1、A2、B1、B2、C1、C2、D1和D2）、输出引脚（Y1、Y2、Y3和Y4）和负载引脚。
其中，电源引脚VCC 和GND是给电源提供电的，输入引脚是二进制的输入信号，输出引脚是二进制的输出信号，负载引脚是与其它数字电路相连的终端。
4. 使用方法在使用74LS00芯片时，需要将芯片的电源引脚接到适当的电源上，然后将输入引脚所接收到的二进制值输入到芯片中，芯片会处理这些二进制数值并输出相应结果。
74VHC138_04中文资料
1/12November 2004s HIGH SPEED: t PD = 5.7ns (TYP.) at V CC = 5V sLOW POWER DISSIPATION:I CC = 4 µA (MAX.) at T A =25°C sHIGH NOISE IMMUNITY:V NIH = V NIL = 28% V CC (MIN.)s POWER DOWN PROTECTION ON INPUTS sSYMMETRICAL OUTPUT IMPEDANCE:|I OH | = I OL = 8 mA (MIN)sBALANCED PROPAGATION DELAYS:t PLH ≅ t PHLsOPERATING VOLTAGE RANGE:V CC (OPR) = 2V to 5.5VsPIN AND FUNCTION COMPATIBLE WITH 74 SERIES 138sIMPROVED LATCH-UP IMMUNITYDESCRIPTIONThe 74VHC138 is an advanced high-speed CMOS 3 TO 8 LINE DECODER (INVERTING)fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology.If the device is enabled, 3 binary select (A, B, and C) determine which one of the outputs will go low.If enable input G1 is held low or either G2A or G2B is held high, the decoding function is inhibited and all the 8 outputs go to high.Tree enable inputs are provided to ease cascade connection and application of address decoders for memory systems.Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V.All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.74VHC1383 TO 8 LINE DECODER (INVERTING)Figure 1: Pin Connection And IEC Logic SymbolsTable 1: Order CodesPACKAGE T & R SOP 74VHC138MTR TSSOP74VHC138TTR74VHC1382/12Figure 2: Input Equivalent CircuitTable 2: Pin DescriptionTable 3: Truth TableX : Don’t careFigure 3: Logic DiagramThis logic diagram has not be used to estimate propagation delaysPIN N°SYMBOL NAME AND FUNCTION 1, 2, 3A, B, C Address Inputs 4, 5G2A, G2BEnable Inputs 6G1Enable Input 15, 14, 13, 12, 11, 10, 9,7Y0 to Y7Outputs8GND Ground (0V)16V CCPositive Supply VoltageINPUTSOUTPUTS ENABLE SELECTG2B G2A G1C B A Y0Y1Y2Y3Y4Y5Y6Y7X X L X X X H H H H H H H H X H X X X X H H H H H H H H H X X X X X H H H H H H H H L L H L L L L H H H H H H H L L H L L H H L H H H H H H L L H L H L H H L H H H H H L L H L H H H H H L H H H H L L H H L L H H H H L H H H L L H H L H H H H H H L H H L L H H H L H H H H H H L H LLHHHHHHHHHHHL74VHC1383/12Table 4: Absolute Maximum RatingsAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not impliedTable 5: Recommended Operating Conditions1) V IN from 30% to 70% of V CCSymbol ParameterValue Unit V CC Supply Voltage -0.5 to +7.0V V I DC Input Voltage -0.5 to +7.0V V O DC Output Voltage -0.5 to V CC + 0.5V I IK DC Input Diode Current - 20mA I OK DC Output Diode Current ± 20mA I O DC Output Current ± 25mA I CC or I GND DC V CC or Ground Current± 75mA T stg Storage Temperature -65 to +150°C T LLead Temperature (10 sec)300°CSymbol ParameterValue Unit V CC Supply Voltage 2 to 5.5V V I Input Voltage 0 to 5.5V V O Output Voltage 0 to V CC V T op Operating Temperature-55 to 125°C dt/dvInput Rise and Fall Time (note 1) (V CC = 3.3 ± 0.3V) (V CC = 5.0 ± 0.5V)0 to 1000 to 20ns/V74VHC1384/12Table 6: DC SpecificationsTable 7: AC Electrical Characteristics (Input t r = t f = 3ns)(*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5VSymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.V IHHigh Level Input Voltage2.0 1.5 1.5 1.5V3.0 to 5.50.7V CC0.7V CC0.7V CCV ILLow Level Input Voltage2.00.50.50.5V3.0 to 5.50.3V CC0.3V CC0.3V CCV OHHigh Level Output Voltage2.0I O =-50 µA 1.9 2.0 1.9 1.9V3.0I O =-50 µA 2.9 3.0 2.9 2.94.5I O =-50 µA 4.4 4.54.4 4.43.0I O =-4 mA 2.58 2.48 2.44.5I O =-8 mA 3.943.83.7V OLLow Level Output Voltage2.0I O =50 µA 0.00.10.10.1V3.0I O =50 µA 0.00.10.10.14.5I O =50 µA 0.00.10.10.13.0I O =4 mA 0.360.440.554.5I O =8 mA 0.360.440.55I I Input Leakage Current0 to 5.5V I = 5.5V or GND ± 0.1± 1± 1µA I CCQuiescent Supply Current5.5V I = V CC or GND44040µA SymbolParameterTest ConditionValue UnitV CC (V)C L (pF)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.t PLH t PHLPropagation Delay Time A, B, C, to Y3.3(*)158.211.4 1.013.0 1.013.0ns 3.3(*)5010.015.8 1.018.0 1.018.05.0(**)15 5.78.1 1.09.5 1.09.55.0(**)507.210.1 1.011.5 1.011.5t PLH t PHLPropagation Delay TimeG to Y3.3(*)158.112.8 1.015.0 1.015.0ns 3.3(*)5010.616.3 1.018.5 1.018.55.0(**)15 5.68.1 1.09.5 1.09.55.0(**)507.110.1 1.011.5 1.011.5t PLH t PHLPropagation Delay TimeG2A, G2B to Y3.3(*)158.211.4 1.013.5 1.013.5ns 3.3(*)5010.714.9 1.017.0 1.017.05.0(**)15 5.88.1 1.09.5 1.09.55.0(**)507.310.11.011.51.011.574VHC1385/12Table 8: Capacitive Characteristics1) C PD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I CC(opr) = C PD x V CC x f IN + I CCFigure 4: Test CircuitC L =15/50pF or equivalent (includes jig and probe capacitance)R T = Z OUT of pulse generator (typically 50Ω)Figure 5: Waveform - Propagation Delays For Inverting Outputs (f=1MHz; 50% duty cycle)SymbolParameterTest ConditionValue UnitT A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.C IN Input Capacitance 6101010pF C PDPower Dissipation Capacitance (note 1)34pF74VHC138Figure 6: Waveform - Propagation Delays For Non-inverting Outputs (f=1MHz; 50% duty cycle)6/1274VHC1387/12DIM.mm.inch MIN.TYPMAX.MIN.TYP.MAX.A 1.750.068a10.10.250.0040.010a2 1.640.063b 0.350.460.0130.018b10.190.250.0070.010C 0.50.019c145° (typ.)D 9.8100.3850.393E 5.86.20.2280.244e 1.270.050e38.890.350F 3.8 4.00.1490.157G 4.6 5.30.1810.208L 0.5 1.270.0190.050M 0.620.024S8° (max.)SO-16 MECHANICAL DATA0016020D74VHC1388/12DIM.mm.inchMIN.TYPMAX.MIN.TYP.MAX.A 1.20.047A10.050.150.0020.0040.006A20.81 1.050.0310.0390.041b 0.190.300.0070.012c 0.090.200.0040.0079D 4.95 5.10.1930.1970.201E 6.2 6.4 6.60.2440.2520.260E1 4.34.4 4.480.1690.1730.176e 0.65 BSC0.0256 BSCK 0˚8˚0˚8˚L0.450.600.750.0180.0240.030TSSOP16 MECHANICAL DATAcEbA2A E1D1PIN 1 IDENTIFICATIONA1LKe0080338D74VHC138 Tape & Reel SO-16 MECHANICAL DATAmm.inchDIM.MIN.TYP MAX.MIN.TYP.MAX.A33012.992C12.813.20.5040.519D20.20.795N60 2.362T22.40.882Ao 6.45 6.650.2540.262Bo10.310.50.4060.414Ko 2.1 2.30.0820.090Po 3.9 4.10.1530.161P7.98.10.3110.3199/1274VHC138Tape & Reel TSSOP16 MECHANICAL DATAmm.inch DIM.MIN.TYP MAX.MIN.TYP.MAX.A33012.992 C12.813.20.5040.519 D20.20.795N60 2.362T22.40.882 Ao 6.7 6.90.2640.272 Bo 5.3 5.50.2090.217 Ko 1.6 1.80.0630.071 Po 3.9 4.10.1530.161 P7.98.10.3110.31910/1274VHC138 Table 9: Revision HistoryDate Revision Description of Changes 12-Nov-20044Order Codes Revision - pag. 1.11/1274VHC138Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.The ST logo is a registered trademark of STMicroelectronicsAll other names are the property of their respective owners© 2004 STMicroelectronics - All Rights ReservedSTMicroelectronics group of companiesAustralia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America12/12。
74VHC138NX中文资料
November 1992Revised April 199974VHC138 3-to-8 Decoder/Demultiplexer © 1999 Fairchild Semiconductor Corporation DS011537.prf 74VHC1383-to-8 Decoder/DemultiplexerGeneral DescriptionThe VHC138 is an advanced high speed CMOS 3-to-8decoder/demultiplexer fabricated with silicon gate CMOStechnology. It achieves the high speed operation similar toequivalent Bipolar Schottky TTL while maintaining theCMOS low power dissipation.When the device is enabled, 3 binary select inputs (A0, A1and A2) determine which one of the outputs (O0–O7) will goLOW. When enable input E3 is held LOW or either E1 or E2is held HIGH, decoding function is inhibited and all outputsgo HIGH. E3, E1 and E2 inputs are provided to ease cas-cade connection and for use as an address decoder formemory systems. An input protection circuit ensures that0V to 7V can be applied to the input pins without regard tothe supply voltage. This device can be used to interface 5Vto 3V systems and two supply systems such as batteryback up. This circuit prevents device destruction due tomismatched supply and input voltages.Featuress High Speed: t PD= 5.7ns (typ) at T A= 25°Cs Low power dissipation: I CC= 4 µA (max.) at T A= 25°Cs High noise immunity: V NIH= V NIL= 28% V CC (min.)s Power down protection provided on all inputss Pin and function compatible with 74HC138Ordering Code:Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.Logic SymbolsIEEE/IECConnection DiagramPin DescriptionsOrder Number Package Number Package Description74VHC138M M16A16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow74VHC138SJ M16D16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide74VHC138MTC MTC1616-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide74VHC138N N16E16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” WidePin Names DescriptionA0–A2Address InputsE1–E2Enable InputsE3Enable InputO0–O7Outputs 274V H C 138Truth TableH = HIGH Voltage Level L = LOW Voltage Level X = ImmaterialInputsOutputs E 1E 2E 3A 0A 1A 2O 0O 1O 2O 3O 4O 5O 6O 7H X X X X X H H H H H H H H X H X X X X H H H H H H H H XXLXXXHHHHHHHHL L H L L L L H H H H H H H L L H H L L H L H H H H H H L L H L H L H H L H H H H H LLHHHLHHHLHHHHL L H L L H H H H H L H H H L L H H L H H H H H H L H H L L H L H H H H H H H H L H LLHHHHHHHHHHHL74VHC138Absolute Maximum Ratings (Note 1)Recommended Operating Conditions (Note 2)Note 1: Absolute Maximum Ratings are values beyond which the device may be damaged or have its useful life impaired. The databook specifica-tions should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading vari-ables. Fairchild does not recommend operation outside databook specifica-tions.Note 2: Unused inputs must be held HIGH or LOW. They may not float.DC Electrical CharacteristicsSupply Voltage (V CC )−0.5V to +7.0V DC Input Voltage (V IN )−0.5V to +7.0V DC Output Voltage (V OUT )−0.5V to V CC + 0.5VInput Diode Current (I IK )−20 mA Output Diode Current (I OK )±20 mA DC Output Current (I OUT )±25 mA DC V CC /GND Current (I CC )±75 mAStorage Temperature (T STG )−65°C to +150°CLead Temperature (T L )(Soldering, 10 seconds)260°CSupply Voltage (V CC ) 2.0V to +5.5V Input Voltage (V IN )0V to +5.5V Output Voltage (V OUT )0V to V CCOperating Temperature (T OPR )−40°C to +85°CInput Rise and Fall Time (t r , t f )V CC = 3.3V ± 0.3V 0 ∼ 100 ns/V V CC = 5.0V ± 0.5V0 ∼ 20 ns/V Symbol ParameterV CC (V)T A = 25°CT A = −40°C to +85°C Units ConditionsMin TypMaxMin MaxV IH HIGH Level Input Voltage 2.0 1.50 1.50V 3.0 − 5.50.7 V CC0.7 V CCV IL LOW Level Input Voltage 2.00.500.50V3.0 − 5.50.3 V CC0.3 V CC V OHHIGH Level Output Voltage2.0 1.9 2.0 1.9V IN = V IH I OH = −50 µA3.0 2.9 3.0 2.9Vor V IL4.5 4.4 4.5 4.43.0 2.58 2.48VI OH = −4 mA 4.53.943.80I OH = −8 mA V OLLOW Level Output Voltage2.00.00.10.1V IN = VIH IOL= 50 µA3.00.00.10.1V or V IL4.50.00.10.13.00.360.44V I OL = 4 mA4.50.360.44I OL = 8 mAI IN Input Leakage Current 0 − 5.5±0.1±1.0µA V IN = 5.5V or GND I CCQuiescent Supply Current5.54.040.0µAV IN = V CC or GND 474V H C 138AC Electrical CharacteristicsNote 3: C PD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained by the equation: I CC (opr.) = C PD * V CC * f IN + I CC .Symbol ParameterV CC (V)T A = 25°CT A = −40°C to +85°C Units Conditions MinTyp Max Min Max t PLH Propagation Delay 3.3 ± 0.38.211.4 1.013.5ns C L = 15 pF t PHLA n to O n10.015.8 1.018.0C L = 50 pF 5.0 ± 0.55.78.1 1.09.5ns C L = 15 pF 7.210.1 1.011.5C L = 50 pF t PLH Propagation Delay 3.3 ± 0.38.112.8 1.015.0ns C L = 15 pF t PHLE 3 to O n10.616.3 1.018.5C L = 50 pF 5.0 ± 0.55.68.1 1.09.5ns C L = 15 pF 7.110.1 1.011.5C L = 50 pF t PLH Propagation Delay 3.3 ± 0.38.211.4 1.013.5ns C L = 15 pF t PHLE 1 or E 2 to O n10.714.9 1.017.0C L = 50 pF 5.0 ± 0.55.88.1 1.09.5ns C L = 15 pF 7.310.1 1.011.5C L = 50 pF C IN Input Capacitance 41010pF V CC = Open C PDPower Dissipation 34pF(Note 3)Capacitance74VHC138Physical Dimensions inches (millimeters) unless otherwise noted16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” NarrowPackage Number M16A16-Lead Small Outline Package (SOP) EIAJ TYPE II, 5.3mm WidePackage Number M16D 674V H C 138Physical Dimensionsinches (millimeters) unless otherwise noted (Continued)16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm WidePackage Number MTC16Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.74VHC138 3-to-8 Decoder/DemultiplexerLIFE SUPPORT POLICYFAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:1.Life support devices or systems are devices or systemswhich, (a) are intended for surgical implant into thebody, or (b) support or sustain life, and (c) whose failureto perform when properly used in accordance withinstructions for use provided in the labeling, can be rea-sonably expected to result in a significant injury to the user.2. A critical component in any component of a life support device or system whose failure to perform can be rea-sonably expected to cause the failure of the life support device or system, or to affect its safety or Physical Dimensions inches (millimeters) unless otherwise noted (Continued)16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” WidePackage Number N16E。
74HC系列芯片资料
74HC00 四 2 输入与非门国际通用符号54/7400 ， 54/74H00 , 54L 00 ， 54/74S00 ， 54/74LS00 , 54/74ALS00 ， 54/ 74F 00 , 54/74HC00 , 54/ 74AC 00 ， 54/74HCT00 ， 54/74ACT00 ， 54/74AHC00 ， 54/74AHCT00 ，74LV00 , 74LVC00。
74HC02 四 2 输入或非门国际通用符号54/7402 ， 54L 02 , 54/74S02 , 54/74LS02 , 54/74AS02 ， 54/74ALS02 ， 54/ 74F 02 ，54/74HC02 ， 74AC 02 ， 54/74HCT02 ， 54/74ACT02 ， 54/74AHC02 ， 54/AHCT02 ， 74LV02 , 74LVC02。
74HC04 六反相器国际通用符号54/7404 ， 54L 04 ， 54/74H04 ， 54/74S04 ， 54/74LS04 ， 54/74AS04 ， 54/74ALS04 ，54/ 74F 04 ， 54/74HCU04 ， 54/74HC04 ， 54/ 74AC 04 ， 54/74HCT04 , 54/74ACT04 ，54/74AHC04 ， 54/74AHCT04 ， 74LV04 ， 74LVC04 , 54/74AHCU04 ， 74LVU04 ， 74LVCU04 .74HC08 四 2 输入与门国际通用符号54/7408 ， 54/74S08 ， 54/74LS08 ， 54/74AS08 ， 54/74ALS08 ， 54/ 74F 08 ， 54/74HC08 ，54/74HCT08 ， 54/ 74AC 08 ， 54/74ACT08 ， 54/74AHC08 ， 54/74AHCT08 , 74LV08 ， 74LVC08。
74系列芯片简单说明
74系列芯片功能略表来源：网络74HC01 2输入四与非门 (oc)74HC02 2输入四或非门74HC03 2输入四与非门 (oc)74HC04 六倒相器74HC05 六倒相器(oc)74HC06 六高压输出反相缓冲器/驱动器(oc,30v) 74HC07 六高压输出缓冲器/驱动器(oc,30v)74HC08 2输入四与门74HC09 2输入四与门(oc)74HC10 3输入三与非门74HC11 3输入三与门74HC12 3输入三与非门 (oc)74HC13 4输入双与非门 (斯密特触发)74HC14 六倒相器(斯密特触发)74HC15 3输入三与门 (oc)74HC16 六高压输出反相缓冲器/驱动器(oc,15v) 74HC17 六高压输出缓冲器/驱动器(oc,15v)74HC18 4输入双与非门 (斯密特触发)74HC19 六倒相器(斯密特触发)74HC20 4输入双与非门74HC21 4输入双与门74HC22 4输入双与非门(oc)74HC23 双可扩展的输入或非门74HC24 2输入四与非门(斯密特触发)74HC25 4输入双或非门(有选通)74HC26 2输入四高电平接口与非缓冲器(oc,15v) 74HC27 3输入三或非门74HC28 2输入四或非缓冲器74HC30 8输入与非门74HC31 延迟电路74HC32 2输入四或门74HC33 2输入四或非缓冲器(集电极开路输出) 74HC34 六缓冲器74HC35 六缓冲器(oc)74HC36 2输入四或非门(有选通)74HC37 2输入四与非缓冲器74HC38 2输入四或非缓冲器(集电极开路输出)74HC39 2输入四或非缓冲器(集电极开路输出)74HC40 4输入双与非缓冲器74HC41 bcd-十进制计数器74HC42 4线-10线译码器(bcd输入)74HC43 4线-10线译码器(余3码输入)74HC44 4线-10线译码器(余3葛莱码输入)74HC45 bcd-十进制译码器/驱动器74HC46 bcd-七段译码器/驱动器74HC47 bcd-七段译码器/驱动器74HC48 bcd-七段译码器/驱动器74HC49 bcd-七段译码器/驱动器(oc)74HC50 双二路2-2输入与或非门(一门可扩展)74HC51 双二路2-2输入与或非门74HC51 二路3-3输入,二路2-2输入与或非门74HC52 四路2-3-2-2输入与或门(可扩展)74HC53 四路2-2-2-2输入与或非门(可扩展)74HC53 四路2-2-3-2输入与或非门(可扩展)74HC54 四路2-2-2-2输入与或非门74HC54 四路2-3-3-2输入与或非门74HC54 四路2-2-3-2输入与或非门74HC55 二路4-4输入与或非门(可扩展)74HC60 双四输入与扩展74HC61 三3输入与扩展74HC62 四路2-3-3-2输入与或扩展器74HC63 六电流读出接口门74HC64 四路4-2-3-2输入与或非门74HC65 四路4-2-3-2输入与或非门(oc)74HC70 与门输入上升沿jk触发器74HC71 与输入r-s主从触发器74HC72 与门输入主从jk触发器74HC73 双j-k触发器(带清除端)74HC74 正沿触发双d型触发器(带预置端和清除端)74HC75 4位双稳锁存器74HC76 双j-k触发器(带预置端和清除端)74HC77 4位双稳态锁存器74HC78 双j-k触发器(带预置端,公共清除端和公共时钟端) 74HC80 门控全加器74HC81 16位随机存取存储器74HC82 2位二进制全加器(快速进位)74HC83 4位二进制全加器(快速进位)74HC84 16位随机存取存储器74HC85 4位数字比较器74HC86 2输入四异或门74HC87 四位二进制原码/反码/oi单元74HC89 64位读/写存储器74HC90 十进制计数器74HC91 八位移位寄存器74HC92 12分频计数器(2分频和6分频)74HC93 4位二进制计数器74HC94 4位移位寄存器(异步)74HC95 4位移位寄存器(并行io)74HC96 5位移位寄存器74HC97 六位同步二进制比率乘法器74HC100 八位双稳锁存器74HC103 负沿触发双j-k主从触发器(带清除端)74HC106 负沿触发双j-k主从触发器(带预置,清除,时钟) 74HC107 双j-k主从触发器(带清除端)74HC108 双j-k主从触发器(带预置,清除,时钟)74HC109 双j-k触发器(带置位,清除,正触发)74HC110 与门输入j-k主从触发器(带锁定)74HC111 双j-k主从触发器(带数据锁定)74HC112 负沿触发双j-k触发器(带预置端和清除端)74HC113 负沿触发双j-k触发器(带预置端)74HC114 双j-k触发器(带预置端,共清除端和时钟端)74HC116 双四位锁存器74HC120 双脉冲同步器/驱动器74HC121 单稳态触发器(施密特触发)74HC122 可再触发单稳态多谐振荡器(带清除端)74HC123 可再触发双单稳多谐振荡器74HC125 四总线缓冲门(三态输出)74HC126 四总线缓冲门(三态输出)74HC128 2输入四或非线驱动器74HC131 3-8译码器74HC132 2输入四与非门(斯密特触发)74HC133 13输入端与非门74HC134 12输入端与门(三态输出)74HC135 四异或/异或非门74HC136 2输入四异或门(oc)74HC137 八选1锁存译码器/多路转换器74HC138 3-8线译码器/多路转换器74HC139 双2-4线译码器/多路转换器74HC140 双4输入与非线驱动器74HC141 bcd-十进制译码器/驱动器74HC142 计数器/锁存器/译码器/驱动器74HC145 4-10译码器/驱动器74HC147 10线-4线优先编码器74HC148 8线-3线八进制优先编码器74HC150 16选1数据选择器(反补输出)74HC151 8选1数据选择器(互补输出)74HC152 8选1数据选择器多路开关74HC153 双4选1数据选择器/多路选择器74HC154 4线-16线译码器74HC155 双2-4译码器/分配器(图腾柱输出)74HC156 双2-4译码器/分配器(集电极开路输出) 74HC157 四2选1数据选择器/多路选择器74HC158 四2选1数据选择器(反相输出)74HC160 可预置bcd计数器(异步清除)74HC161 可预置四位二进制计数器(并清除异步) 74HC162 可预置bcd计数器(异步清除)74HC163 可预置四位二进制计数器(并清除异步) 74HC164 8位并行输出串行移位寄存器74HC165 并行输入8位移位寄存器(补码输出)74HC166 8位移位寄存器74HC167 同步十进制比率乘法器74HC168 4位加/减同步计数器(十进制)74HC169 同步二进制可逆计数器74HC170 4*4寄存器堆74HC171 四d触发器(带清除端)74HC172 16位寄存器堆74HC173 4位d型寄存器(带清除端)74HC174 六d触发器74HC175 四d触发器74HC176 十进制可预置计数器74HC177 2-8-16进制可预置计数器74HC178 四位通用移位寄存器74HC179 四位通用移位寄存器74HC180 九位奇偶产生/校验器74HC181 算术逻辑单元/功能发生器74HC182 先行进位发生器74HC183 双保留进位全加器74HC184 bcd-二进制转换器74HC185 二进制-bcd转换器74HC190 同步可逆计数器(bcd,二进制)74HC191 同步可逆计数器(bcd,二进制)74HC192 同步可逆计数器(bcd,二进制)74HC193 同步可逆计数器(bcd,二进制)74HC199 八位移位寄存器74HC210 2-5-10进制计数器74HC213 2-n-10可变进制计数器74HC221 双单稳触发器74HC230 八3态总线驱动器74HC231 八3态总线反向驱动器74HC240 八缓冲器/线驱动器/线接收器(反码三态输出)74HC241 八缓冲器/线驱动器/线接收器(原码三态输出)74HC242 八缓冲器/线驱动器/线接收器74HC243 4同相三态总线收发器74HC244 八缓冲器/线驱动器/线接收器74HC245 八双向总线收发器74HC246 4线-七段译码/驱动器(30v)74HC247 4线-七段译码/驱动器(15v)74HC248 4线-七段译码/驱动器74HC249 4线-七段译码/驱动器74HC251 8选1数据选择器(三态输出)74HC253 双四选1数据选择器(三态输出)74HC256 双四位可寻址锁存器74HC257 四2选1数据选择器(三态输出)74HC258 四2选1数据选择器(反码三态输出)74HC259 8为可寻址锁存器74HC260 双5输入或非门74HC261 4*2并行二进制乘法器74HC265 四互补输出元件74HC266 2输入四异或非门(oc)74HC270 2048位rom (512位四字节,oc)74HC271 2048位rom (256位八字节,oc)74HC273 八d触发器74HC274 4*4并行二进制乘法器74HC275 七位片式华莱士树乘法器74HC276 四jk触发器74HC278 四位可级联优先寄存器74HC279 四s-r锁存器74HC280 9位奇数/偶数奇偶发生器/较验器74HC28174HC283 4位二进制全加器74HC290 十进制计数器74HC291 32位可编程模74HC293 4位二进制计数器74HC294 16位可编程模74HC295 四位双向通用移位寄存器74HC298 四-2输入多路转换器(带选通)74HC299 八位通用移位寄存器(三态输出)74HC348 8-3线优先编码器(三态输出)74HC352 双四选1数据选择器/多路转换器74HC353 双4-1线数据选择器(三态输出)74HC354 8输入端多路转换器/数据选择器/寄存器,三态补码输出74HC355 8输入端多路转换器/数据选择器/寄存器,三态补码输出74HC356 8输入端多路转换器/数据选择器/寄存器,三态补码输出74HC357 8输入端多路转换器/数据选择器/寄存器,三态补码输出74HC365 6总线驱动器74HC366 六反向三态缓冲器/线驱动器74HC367 六同向三态缓冲器/线驱动器74HC368 六反向三态缓冲器/线驱动器74HC373 八d锁存器74HC374 八d触发器(三态同相)74HC375 4位双稳态锁存器74HC377 带使能的八d触发器74HC378 六d触发器74HC379 四d触发器74HC381 算术逻辑单元/函数发生器74HC382 算术逻辑单元/函数发生器74HC384 8位*1位补码乘法器74HC385 四串行加法器/乘法器74HC386 2输入四异或门74HC390 双十进制计数器74HC391 双四位二进制计数器74HC395 4位通用移位寄存器74HC396 八位存储寄存器74HC398 四2输入端多路开关(双路输出)74HC399 四-2输入多路转换器(带选通)74HC422 单稳态触发器74HC423 双单稳态触发器74HC440 四3方向总线收发器,集电极开路74HC441 四3方向总线收发器,集电极开路74HC442 四3方向总线收发器,三态输出74HC443 四3方向总线收发器,三态输出74HC444 四3方向总线收发器,三态输出74HC445 bcd-十进制译码器/驱动器,三态输出74HC446 有方向控制的双总线收发器74HC448 四3方向总线收发器,三态输出74HC449 有方向控制的双总线收发器74HC465 八三态线缓冲器74HC466 八三态线反向缓冲器74HC467 八三态线缓冲器74HC468 八三态线反向缓冲器74HC490 双十进制计数器74HC540 八位三态总线缓冲器(反向)74HC541 八位三态总线缓冲器74HC589 有输入锁存的并入串出移位寄存器74HC590 带输出寄存器的8位二进制计数器74HC591 带输出寄存器的8位二进制计数器74HC592 带输出寄存器的8位二进制计数器74HC593 带输出寄存器的8位二进制计数器74HC594 带输出锁存的8位串入并出移位寄存器74HC595 8位输出锁存移位寄存器74HC596 带输出锁存的8位串入并出移位寄存器74HC597 8位输出锁存移位寄存器74HC598 带输入锁存的并入串出移位寄存器74HC599 带输出锁存的8位串入并出移位寄存器74HC604 双8位锁存器74HC605 双8位锁存器74HC606 双8位锁存器74HC607 双8位锁存器74HC620 8位三态总线发送接收器(反相)74HC621 8位总线收发器74HC622 8位总线收发器74HC623 8位总线收发器74HC640 反相总线收发器(三态输出)74HC641 同相8总线收发器,集电极开路74HC642 同相8总线收发器,集电极开路74HC643 8位三态总线发送接收器74HC644 真值反相8总线收发器,集电极开路74HC645 三态同相8总线收发器74HC646 八位总线收发器,寄存器74HC647 八位总线收发器,寄存器74HC648 八位总线收发器,寄存器74HC649 八位总线收发器,寄存器74HC651 三态反相8总线收发器74HC652 三态反相8总线收发器74HC653 反相8总线收发器,集电极开路74HC654 同相8总线收发器,集电极开路74HC668 4位同步加/减十进制计数器74HC669 带先行进位的4位同步二进制可逆计数器74HC670 4*4寄存器堆(三态)74HC671 带输出寄存的四位并入并出移位寄存器74HC672 带输出寄存的四位并入并出移位寄存器74HC673 16位并行输出存储器,16位串入串出移位寄存器74HC674 16位并行输入串行输出移位寄存器74HC681 4位并行二进制累加器74HC682 8位数值比较器(图腾柱输出)74HC683 8位数值比较器(集电极开路)74HC684 8位数值比较器(图腾柱输出)74HC685 8位数值比较器(集电极开路)74HC686 8位数值比较器(图腾柱输出)74HC687 8位数值比较器(集电极开路)74HC688 8位数字比较器(oc输出)74HC689 8位数字比较器74HC690 同步十进制计数器/寄存器(带数选,三态输出,直接清除)74HC691 计数器/寄存器(带多转换,三态输出)74HC692 同步十进制计数器(带预置输入,同步清除)74HC693 计数器/寄存器(带多转换,三态输出)74HC696 同步加/减十进制计数器/寄存器(带数选,三态输出,直接清除) 74HC697 计数器/寄存器(带多转换,三态输出)74HC698 计数器/寄存器(带多转换,三态输出)74HC699 计数器/寄存器(带多转换,三态输出)74HC716 可编程模n十进制计数器74HC718 可编程模n十进制计数器。
74HC138中文资料
74HC138中文资料引脚布局概述138是一款高速CMOS器件，74HC138引脚兼容低功耗肖特基TTL（LSTTL）系列。
138译码器可接受3位二进制加权地址输入（A0,A1和A3），并当使能时，提供8个互斥的低有效输出（Y0至Y7）。
74HC138特有3个使能输入端：两个低有效（E1和E2）有效（E3）。
除非E1和E2置低且E3置高，否则74HC138将保持所有输出为高。
利用这种复合使能特性，仅需4片74HC138芯片和1个反相器，即可轻松实现并行扩展，组个1-32（5线到32线）译码器。
任选一个低有效使能输入端作为数据输入，而把其余的使能输入端作为选通端，则74HC138亦可充当一个8输出多路分配器，未使用的使能输入持绑定在各自合适的高有效或低有效状态。
138与74HC238逻辑功能一致，只不过74HC138为反相输出。
74HC138参数74HC138基本参数电压 2.0～6.0V驱动电流+/-5.2mA传输延迟12ns@5V74HC138其他特性逻辑电平CMOS功耗考量低功耗或电池74HC138封装与引脚SO16,SSOP16,DIP16,TSSO特性多路分配功能复合使能输入，轻松实现扩展兼容JEDEC标准no.7A存储器芯片译码选择的理想选择低有效互斥输出SD保护o HBM EIA/JESD22-A114-C超过2000V o MM EIA/JESD22-A115-A超过200V 温度范围o-40～+85℃o-40～+125℃引脚布局概述74HC165是一款高速CMOS器件，74HC165遵循JEDEC标准no.7A。
74HC165引脚兼容低功耗肖特基TTL（LSTTL）系列。
74HC165参数74HC165基本参数电压 2.0～6.0V74HC165是8位并行读取或串行输入移位寄存器，可在末级得到互斥的串行输出（Q7和Q7），当并行读取（PL）输入为低时，7口输入的并行数据将被异步地读取进寄存器内。
74系列的主要芯片
你把74系列的主要芯片的功能都学习一遍，俺给你开一个清单~~~~~~ mcu基本功之一~~~~~~~~~~~~~~~~~74系列芯片很多，常用的需要掌握的TTL LS/HC芯片74LS00 2输入四与非门74LS04六倒相器74LS06六高压输出反相缓冲器/驱动器(oc,30v)74LS07六高压输出缓冲器/驱动器(oc,30v)74LS14六倒相器(斯密特触发)74LS32 2输入四或门74LS138 3-8线译码器/多路转换器74LS164 8位并行输出串行移位寄存器74LS165并行输入8位移位寄存器(补码输出)74LS240八缓冲器/线驱动器/线接收器(反码三态输出)74LS244八缓冲器/线驱动器/线接收器74LS245八双向总线收发器74LS273八d触发器74LS373八d锁存器74LS541八位三态总线缓冲器74LS573八D锁存器（这个芯片上面没有）74LS574八D锁存器（这个芯片上面没有）74LS595 8位输出锁存移位寄存器7400 2输入端四与非门7401集电极开路2输入端四与非门7402 2输入端四或非门7403集电极开路2输入端四与非门7404六反相器7405集电极开路六反相器7406集电极开路六反相高压驱动器7407集电极开路六正相高压驱动器7408 2输入端四与门7409集电极开路2输入端四与门7410 3输入端3与非门74107 带清除主从双J-K触发器74109 带预置清除正触发双J-K触发器7411 3输入端3与门74112 带预置清除负触发双J-K触发器7412开路输出3输入端三与非门74121 单稳态多谐振荡器74122 可再触发单稳态多谐振荡器74123 双可再触发单稳态多谐振荡器74125 三态输出高有效四总线缓冲门74126 三态输出低有效四总线缓冲门7413 4输入端双与非施密特触发器74132 2输入端四与非施密特触发器74133 13输入端与非门74136 四异或门74138 3-8线译码器/复工器74139 双2-4线译码器/复工器7414六反相施密特触发器74145 BCD—十进制译码/驱动器7415开路输出3输入端三与门74150 16选1数据选择/多路开关74151 8选1数据选择器74153 双4选1数据选择器74154 4线—16线译码器74155 图腾柱输出译码器/分配器74156 开路输出译码器/分配器74157 同相输出四2选1数据选择器74158 反相输出四2选1数据选择器7416开路输出六反相缓冲/驱动器74160 可预置BCD异步清除计数器74161 可予制四位二进制异步清除计数器74162 可预置BCD同步清除计数器74163 可予制四位二进制同步清除计数器74164 八位串行入/并行输出移位寄存器74165 八位并行入/串行输出移位寄存器74166 八位并入/串出移位寄存器74169 二进制四位加/减同步计数器7417开路输出六同相缓冲/驱动器74170 开路输出4×4寄存器堆74173 三态输出四位D型寄存器74174 带公共时钟和复位六D触发器74175 带公共时钟和复位四D触发器74180 9位奇数/偶数发生器/校验器74181算术逻辑单元/函数发生器74185二进制—BCD代码转换器74190 BCD同步加/减计数器74191二进制同步可逆计数器74192可预置BCD双时钟可逆计数器74193可预置四位二进制双时钟可逆计数器74194四位双向通用移位寄存器74195四位并行通道移位寄存器74196十进制/二-十进制可预置计数锁存器74197二进制可预置锁存器/计数器7420 4输入端双与非门7421 4输入端双与门7422开路输出4输入端双与非门74221 双/单稳态多谐振荡器74240 八反相三态缓冲器/线驱动器74241 八同相三态缓冲器/线驱动器74243 四同相三态总线收发器74244 八同相三态缓冲器/线驱动器74245 八同相三态总线收发器74247 BCD—7段15V输出译码/驱动器74248 BCD—7段译码/升压输出驱动器74249 BCD—7段译码/开路输出驱动器74251三态输出8选1数据选择器/复工器74253 三态输出双4选1数据选择器/复工器74256 双四位可寻址锁存器74257 三态原码四2选1数据选择器/复工器74258 三态反码四2选1数据选择器/复工器74259八位可寻址锁存器/3-8线译码器7426 2输入端高压接口四与非门74260 5输入端双或非门74266 2输入端四异或非门7427 3输入端三或非门74273 带公共时钟复位八D触发器74279 四图腾柱输出S-R锁存器7428 2输入端四或非门缓冲器74283 4位二进制全加器74290二/五分频十进制计数器74293 二/八分频四位二进制计数器74295 四位双向通用移位寄存器74298四2输入多路带存贮开关74299 三态输出八位通用移位寄存器7430 8输入端与非门7432 2输入端四或门74322 带符号扩展端八位移位寄存器74323 三态输出八位双向移位/存贮寄存器7433开路输出2输入端四或非缓冲器74347 BCD—7段译码器/驱动器74352 双4选1数据选择器/复工器74353 三态输出双4选1数据选择器/复工器74365门使能输入三态输出六同相线驱动器74365门使能输入三态输出六同相线驱动器74366门使能输入三态输出六反相线驱动器74367 4/2线使能输入三态六同相线驱动器74368 4/2线使能输入三态六反相线驱动器7437开路输出2输入端四与非缓冲器74373 三态同相八D锁存器74374 三态反相八D锁存器74375 4位双稳态锁存器74377 单边输出公共使能八D锁存器74378 单边输出公共使能六D锁存器74379 双边输出公共使能四D锁存器7438开路输出2输入端四与非缓冲器74380 多功能八进制寄存器7439开路输出2输入端四与非缓冲器74390 双十进制计数器74393 双四位二进制计数器7440 4输入端双与非缓冲器7442 BCD—十进制代码转换器74352 双4选1数据选择器/复工器74353 三态输出双4选1数据选择器/复工器74365门使能输入三态输出六同相线驱动器74366门使能输入三态输出六反相线驱动器74367 4/2线使能输入三态六同相线驱动器74368 4/2线使能输入三态六反相线驱动器7437开路输出2输入端四与非缓冲器74373 三态同相八D锁存器74374 三态反相八D锁存器74375 4位双稳态锁存器74377 单边输出公共使能八D锁存器74378 单边输出公共使能六D锁存器74379 双边输出公共使能四D锁存器7438开路输出2输入端四与非缓冲器74380 多功能八进制寄存器7439开路输出2输入端四与非缓冲器74390 双十进制计数器74393 双四位二进制计数器7440 4输入端双与非缓冲器7442 BCD—十进制代码转换器74447 BCD—7段译码器/驱动器7445 BCD—十进制代码转换/驱动器74450 16:1多路转接复用器多工器74451 双8:1多路转接复用器多工器74453 四4:1多路转接复用器多工器7446 BCD—7段低有效译码/驱动器74460 十位比较器74461 八进制计数器74465 三态同相2与使能端八总线缓冲器74466 三态反相2与使能八总线缓冲器74467 三态同相2使能端八总线缓冲器74468 三态反相2使能端八总线缓冲器74469 八位双向计数器7447 BCD—7段高有效译码/驱动器7448 BCD—7段译码器/内部上拉输出驱动74490双十进制计数器74491 十位计数器74498 八进制移位寄存器7450 2-3/2-2输入端双与或非门74502 八位逐次逼近寄存器74503 八位逐次逼近寄存器7451 2-3/2-2输入端双与或非门74533 三态反相八D锁存器74534 三态反相八D锁存器7454四路输入与或非门74540 八位三态反相输出总线缓冲器7455 4输入端二路输入与或非门74563 八位三态反相输出触发器74564八位三态反相输出D触发器74573 八位三态输出触发器74574八位三态输出D触发器74645 三态输出八同相总线传送接收器74670 三态输出4×4寄存器堆7473带清除负触发双J-K触发器7474带置位复位正触发双D触发器7476带预置清除双J-K触发器7483四位二进制快速进位全加器7485四位数字比较器7486 2输入端四异或门7490可二/五分频十进制计数器7493可二/八分频二进制计数器7495四位并行输入\输出移位寄存器7497 6位同步二进制乘法器终于找到光藕了部分光电藕合器型号及介绍,PS,PC,TLP系列请大家不要使用部分光电藕合器型号及介绍,PS,PC,TLP系列请大家不要使用本站即将推出光藕部分的详细资料，请大家关注光藕，光偶，是光电耦合器，光电偶合器的简称4N25TRANSISTOR 6 Pin DIP w/ Base LEAD4N26TRANSISTOR 6 Pin DIP w/ Base LEAD4N27TRANSISTOR 6 Pin DIP w/ Base LEAD4N28TRANSISTOR 6 Pin DIP w/ Base LEAD4N29 Darlington 6 Pin w/ Base LEAD4N30 Darlington 6 Pin w/ Base LEAD4N31 Darlington 6 Pin w/ Base LEAD4N32 Darlington 6 Pin w/ Base LEAD4N33 Darlington 6 Pin w/ Base LEAD4N35TRANSISTOR 6 Pin DIP w/ Base LEAD4N36TRANSISTOR 6 Pin DIP w/ Base LEAD4N37TRANSISTOR 6 Pin DIP w/ Base LEAD4N38TRANSISTOR 6 Pin DIP w/ Base LEAD4N38A TRANSISTOR 6 Pin DIP w/ Base LEAD4N39 SCR 6 Pin, SINGLE4N40 SCR 6 Pin, SINGLE6N135 High Speed TRANSISTOR High Speed, SINGLE6N136 High Speed TRANSISTOR6N135 w/ High C.M.R. 6N137 High Speed LOGIC LS / TTL Compatible6N138 High Speed, High Gain SINGLE Channel, High Gain 6N139 High Speed, High Gain 6N138 w/ High C.M.R. CNX62A TRANSISTOR 6 Pin DIP w/o Base LEADCNX72A TRANSISTOR 6 Pin DIP w/ Base LEADCNX82A TRANSISTOR 6 Pin DIP w/o Base LEADCNX83A TRANSISTOR 6 Pin DIP w/ Base LEADCNY17-1TRANSISTOR 6 Pin DIP w/ Base LEADCNY17-2TRANSISTOR 6 Pin DIP w/ Base LEADCNY17-3TRANSISTOR 6 Pin DIP w/ Base LEADCNY17-4TRANSISTOR 6 Pin DIP w/ Base LEADCNY17-5 TRANSISTOR 6 Pin DIP w/ Base LEADCNY17F-1TRANSISTOR 6 Pin DIP w/o Base LEADCNY17F-2TRANSISTOR 6 Pin DIP w/o Base LEADCNY17F-3TRANSISTOR 6 Pin DIP w/o Base LEADCNY17F-4TRANSISTOR 6 Pin DIP w/o Base LEADCNY30 SCR 6 Pin, SINGLECNY34 SCR 6 Pin, SINGLECNY35TRANSISTOR AC Input, 6 Pin SINGLECNY75A TRANSISTOR 6 Pin DIP w/ Base LEADCNY75B TRANSISTOR 6 Pin DIP w/ Base LEADCNY75C TRANSISTOR 6 Pin DIP w/ Base LEADCQY80TRANSISTOR 6 Pin DIP w/ Base LEADH11A1TRANSISTOR 6 Pin DIP w/ Base LEADH11A2TRANSISTOR 6 Pin DIP w/ Base LEADH11A3TRANSISTOR 6 Pin DIP w/ Base LEADh11a4TRANSISTOR 6 Pin DIP w/ Base LEADH11A5TRANSISTOR 6 Pin DIP w/ Base LEADH11AA1TRANSISTOR AC Input, 6 Pin SINGLEH11AA2TRANSISTOR AC Input, 6 Pin SINGLEH11AA3TRANSISTOR AC Input, 6 Pin SINGLEH11AA4TRANSISTOR AC Input, 6 Pin SINGLEH11A V1TRANSISTOR 6 Pin DIP w/ Base LEADH11A V2TRANSISTOR 6 Pin DIP w/ Base LEADH11A V3TRANSISTOR 6 Pin DIP w/ Base LEADH11B1 Darlington 6 Pin w/ Base LEADH11B2 Darlington 6 Pin w/ Base LEADH11B3 Darlington 6 Pin w/ Base LEADH11C1 SCR 6 Pin, SINGLEH11C2 SCR 6 Pin, SINGLEH11C3 SCR 6 Pin, SINGLEH11C4 SCR 6 Pin, SINGLEH11C5 SCR 6 Pin, SINGLEH11C6 SCR 6 Pin, SINGLEH11D1TRANSISTOR 6 Pin DIP, High V oltageH11D2TRANSISTOR 6 Pin DIP, High V oltageH11D3TRANSISTOR 6 Pin DIP, High V oltageH11D4TRANSISTOR 6 Pin DIP, High V oltageH11F1 FET 6 Pin DIP, Symmetrical Bilateral Photo Detector OUTPUTH11F2 FET 6 Pin DIP, Symmetrical Bilateral Photo Detector OUTPUTH11F3 FET 6 Pin DIP, Symmetrical Bilateral Photo Detector OUTPUTH11G1 Darlington 6 Pin w/ Base LEAD & High BVCEOH11G2 Darlington 6 Pin w/ Base LEADH11G3 Darlington 6 Pin w/ Base LEADH11J1 Triac 6 Pin, Non Zero CrossingH11J2 Triac 6 Pin, Non Zero CrossingH11J3 Triac 6 Pin, Non Zero CrossingH11J4 Triac 6 Pin, Non Zero CrossingH11J5 Triac 6 Pin, Non Zero CrossingH11L1 Schmitt Trigger SINGLE Channel DIP, Microprocessor Compatible H11L2 Schmitt Trigger SINGLE Channel DIP, Microprocessor Compatible H11L3 Schmitt Trigger SINGLE Channel DIP, Microprocessor Compatible H11L4 Schmitt Trigger SINGLE Channel DIP, Microprocessor Compatible H24A1TRANSISTOR 4 Pin PACKAGE No Base LEADH24A2TRANSISTOR 4 Pin PACKAGE No Base LEADH24A3 TRANSISTOR 4 Pin PACKAGE No Base LEADH24A4 TRANSISTOR 4 Pin PACKAGE No Base LEADH24B1 Darlington 6 Pin w/o Base LEADH24B2 Darlington 6 Pin w/o Base LEADH24B3 Darlington 6 Pin w/o Base LEADicpl2530 High Speed TRANSISTOR High Speed, DUALicpl2531 High Speed TRANSISTOR icpl2530 w/ High C.M.R.ICPL2533 High Speed TRANSISTOR High Speed, DUAL ICPL2601 High Speed LOGIC6N137 w/ High C.M.R.ICPL2611 High Speed LOGIC ICPL2601 W/ 5000V/us C.M.R. icpl2630 High Speed LOGIC DUAL ChannelICPL2631 High Speed LOGIC icpl2630 w/ High C.M.R. ICPL2730 Darlington DUAL Channel, High GainICPL2731 Darlington DUAL Channel, High GainICPL4502 TRANSISTOR High Speed / C.M.R., SINGLEIL1 TRANSISTOR 6 Pin DIP w/ Base LEADIL2 TRANSISTOR 6 Pin DIP w/ Base LEADIL5 TRANSISTOR 6 Pin w/ Base LEADIL74TRANSISTOR 6 Pin w/ Base LEADild1TRANSISTOR 8 Pin, DUALILD2TRANSISTOR 8 Pin, DUALILD5TRANSISTOR 8 Pin, DUALILD74TRANSISTOR 8 Pin, DUALILQ1TRANSISTOR 16 Pin, QuadILQ2TRANSISTOR 16 Pin, QuadILQ5TRANSISTOR 16 Pin, QuadILQ74TRANSISTOR 16 Pin, QuadIS1 TRANSISTOR 6 Pin w/ Base LEADIS121 Mini Flat PACKAGE TRANSISTORIS126 Mini Flat PACKAGE AC InputIS181 Mini Flat PACKAGE TRANSISTORIS201TRANSISTOR 6 Pin w/ Base LEADIS202TRANSISTOR 6 Pin w/ Base LEADIS203TRANSISTOR 6 Pin w/ Base LEADIS204 TRANSISTOR 6 Pin w/ Base LEADIS204-1 TRANSISTOR Low POWER, 6 Pin w/ Base LEADIS205TRANSISTOR 6 Pin w/o Base LEADIS205-1 TRANSISTOR Low POWER, 6 Pin w/o Base LEAD IS205-2 TRANSISTOR Low POWER, 6 Pin w/o Base LEAD IS206TRANSISTOR 6 Pin w/o Base LEADIS2701-1 Mini Flat PACKAGE TRANSISTORIS2702-1 Mini Flat PACKAGE DarlingtonIS2705-1 Mini Flat PACKAGE AC InputIS3020 Triac Non Zero Crossing, 6 PinIS3021 Triac Non Zero Crossing, 6 PinIS3052 Triac Non Zero Crossing, 6 PinIS354 Mini Flat PACKAGE AC InputIS355 Mini Flat PACKAGE DarlingtonIS357 Mini Flat PACKAGE TRANSISTORis4n45 Darlington High Gain, SINGLEis4n46 Darlington High Gain, SINGLEIS6003 Triac Non Zero Crossing, 6 PinIS6005 Triac Non Zero Crossing, 6 PinIS6010 Triac Non Zero Crossing, 6 PinIS6015 Triac Non Zero Crossing, 6 PinIS6030 Triac Non Zero Crossing, 6 PinIS604TRANSISTOR AC Input, 6 PinIS605 SCR 6 Pin, SINGLEIS606 SCR 6 Pin, SINGLEis607 Triac Non Zero Crossing, 6 Pinis608 Triac Non Zero Crossing, 6 PinIS609 Schmitt Trigger SINGLE Channel DIP, Microprocessor Compatible IS610 FET 6 Pin DIP, Symmetrical Bilateral Photo Detector OUTPUTIS611 FET 6 Pin DIP, Symmetrical Bilateral Photo Detector OUTPUTIS654A Discrete 3mm Dia. TI PkgIS655A Discrete 3mm Dia. TI PkgIS656A Discrete Side Emitter compatible w/ IS657 SeriesIS657A Discrete Buffer w/ RL between VCC & OUTPUTIS657B Discrete Buffer w/ Open Collector OUTPUTIS657C Discrete INVERTER w/ RL between VCC & OUTPUTIS657D Discrete INVERTER w/ Open Collector OUTPUTIS658A Discrete Side EmitterIS659A Discrete Side EmitterIS659D Discrete Side Emitter Photo DarlingtonIS660 Darlington High V oltage, 6 PinIS661 Darlington High V oltage, 6 PinIS662 Darlington High V oltage, 6 PinIS7000 Darlington 4 Pin DIP w/ High BVCEOIS725 Darlington High V oltage, 4 PinIS733TRANSISTOR AC Input, 6 Pinis74TRANSISTOR 6 Pin w/ Base LEADISD1TRANSISTOR 8 Pin, DUALISD201TRANSISTOR 8 Pin, DUALISD202TRANSISTOR 8 Pin, DUALISD203TRANSISTOR 8 Pin, DUALISD204 TRANSISTOR 8 Pin, DUALISD204-1 TRANSISTOR Low POWER, 8 Pin, DUALISD5TRANSISTOR 8 Pin, DUALISD74TRANSISTOR 8 Pin, DUALISP321-1TRANSISTOR 4 Pin, SINGLEISP321-2 TRANSISTOR 8 Pin, DUALISP321-4TRANSISTOR 16 Pin, QuadISP521-1TRANSISTOR 4 Pin, SINGLEISP521-2 TRANSISTOR 8 Pin, DUALISP620-1 TRANSISTOR AC Input, 4 Pin, SINGLE ISP620-2 TRANSISTOR AC Input, 8 Pin, DUAL ISP620-4 TRANSISTOR AC Input, 16 Pin, Quad ISP621-1TRANSISTOR 4 Pin, SINGLE<BR< td>。
74ls系列芯片功能介绍
74、74HC、74LS系列芯片资料系列电平典型传输延迟ns 最大驱动电流(-Ioh/Lol)mAAHC CMOS 8.5 -8/8AHCT COMS/TTL 8.5 -8/8HC COMS 25 -8/8HCT COMS/TTL 25 -8/8ACT COMS/TTL 10 -24/24F TTL 6.5 -15/64ALS TTL 10 -15/64LS TTL 18 -15/24注：同型号的74系列、74HC系列、74LS系列芯片，逻辑功能上是一样的。
74LSxx的使用说明如果找不到的话，可参阅74xx或74HCxx的使用说明。
有些资料里包含了几种芯片，如74HC161资料里包含了74HC160、74HC161、74HC162、74HC163四种芯片的资料。
找不到某种芯片的资料时，可试着查看一下临近型号的芯片资料。
7400 QUAD 2-INPUT NAND GATES 与非门7401 QUAD 2-INPUT NAND GATES OC 与非门7402 QUAD 2-INPUT NOR GATES 或非门7403 QUAD 2-INPUT NAND GATES 与非门7404 HEX INVERTING GATES 反向器7406 HEX INVERTING GATES HV 高输出反向器7408 QUAD 2-INPUT AND GATE 与门7409 QUAD 2-INPUT AND GATES OC 与门7410 TRIPLE 3-INPUT NAND GATES 与非门7411 TRIPLE 3-INPUT AND GATES 与门74121 ONE-SHOT WITH CLEAR 单稳态74132 SCHMITT TRIGGER NAND GATES 触发器与非门7414 SCHMITT TRIGGER INVERTERS 触发器反向器74153 4-LINE TO 1 LINE SELECTOR 四选一74155 2-LINE TO 4-LINE DECODER 译码器74180 PARITY GENERATOR/CHECKER 奇偶发生检验74191 4-BIT BINARY COUNTER UP/DOWN 计数器7420 DUAL 4-INPUT NAND GATES 双四输入与非门7426 QUAD 2-INPUT NAND GATES 与非门7427 TRIPLE 3-INPUT NOR GATES 三输入或非门7430 8-INPUT NAND GATES 八输入端与非门7432 QUAD 2-INPUT OR GATES 二输入或门7438 2-INPUT NAND GATE BUFFER 与非门缓冲器7445 BCD-DECIMAL DECODER/DRIVER BCD译码驱动器7474 D-TYPE FLIP-FLOP D型触发器7475 QUAD LATCHES 双锁存器7476 J-K FLIP-FLOP J-K触发器7485 4-BIT MAGNITUDE COMPARATOR 四位比较器7486 2-INPUT EXCLUSIVE OR GATES 双端异或门74HC00 QUAD 2-INPUT NAND GATES 双输入与非门74HC02 QUAD 2-INPUT NOR GATES 双输入或非门74HC03 2-INPUT OPEN-DRAIN NAND GATES 与非门74HC04 HEX INVERTERS 六路反向器74HC05 HEX INVERTERS OPEN DRAIN 六路反向器74HC08 2-INPUT AND GATES 双输入与门74HC107 J-K FLIP-FLOP WITH CLEAR J-K触发器74HC109A J-K FLIP-FLOP W/PRESET J-K触发器74HC11 TRIPLE 3-INPUT AND GATES 三输入与门74HC112 DUAL J-K FLIP-FLOP 双J-K触发器74HC113 DUAL J-K FLIP-FLOP PRESET 双JK触发器74HC123A RETRIGGERABLE MONOSTAB 可重触发单稳74HC125 TRI-STATE QUAD BUFFERS 四个三态门74HC126 TRI-STATE QUAD BUFFERS 六三态门74HC132 2-INPUT TRIGGER NAND 施密特触发与非门74HC133 13-INPUT NAND GATES 十三输入与非门74HC137 3-TO-8 DECODERS W/LATCHES 3-8线译码器74HC138 3-8 LINE DECODER 3线至8线译码器74HC139 2-4 LINE DECODER 2线至4线译码器74HC14 TRIGGERED HEX INVERTER 六触发反向器74HC147 10-4 LINE PRIORITY ENCODER 10-4编码器74HC148 8-3 LINE PRIORITY ENCODER 8-3编码器74HC149 8-8 LINE PRIORITY ENCODER 8-8编码器74HC151 8-CHANNEL DIGITAL MUX 8通道多路器74HC153 DUAL 4-INPUT MUX 双四输入多路器74HC154 4-16 LINE DECODER 4线至16线译码器74HC155 2-4 LINE DECODER 2线至4线译码器74HC157 QUAD 2-INPUT MUX 四个双端多路器74HC161 BINARY COUNTER 二进制计数器74HC163 DECADE COUNTERS 十进制计数器74HC164 SERIAL-PARALLEL SHIFT REG 串入并出74HC165 PARALLEL-SERIAL SHIFT REG 并入串出74HC166 SERIAL-PARALLEL SHIFT REG 串入并出74HC173 TRI-STATE D FLIP-FLOP 三态D触发器74HC174 HEX D FLIP-FLOP W/CLEAR 六D触发器74HC175 HEX D FLIP-FLOP W/CLEAR 六D触发器74HC181 ARITHMETIC LOGIC UNIT 算术逻辑单元74HC182 LOOK AHEAD CARRYGENERATR 进位发生器74HC190 BINARY UP/DN COUNTER 二进制加减计数器74HC191 DECADE UP/DN COUNTER 十进制加减计数器74HC192 DECADE UP/DN COUNTER 十进制加减计数器74HC193 BINARY UP/DN COUNTER 二进制加减计数器74HC194 4BIT BI-DIR SHIFT 4位双向移位寄存器74HC195 4BIT PARALLEL SHIFT 4位并行移位寄存器74HC20 QUAD 4-INPUT NAND GATE 四个四入与非门74HC221A NON-RETRIG MONOSTAB 不可重触发单稳74HC237 3-8 LINE DECODER 地址锁3线至8线译码器74HC242/243 TRI-STAT TRANSCEIVER 三态收发器74HC244 OCTAL 3-STATE BUFFER 八个三态缓冲门74HC245 OCTAL 3-STATE TRANSCEIVER 三态收发器74HC251 8-CH 3-STATE MUX 8路3态多路器74HC253 DUAL 4-CH 3-STATE MUX 4路3态多路器74HC257 QUAD 2-CH 3-STATE MUX 4路3态多路器74HC258 2-CH 3-STATE MUX 2路3态多路器74HC259 3-8 LINE DECODER 8位地址锁存译码器74HC266A 2-INPUT EXCLUSIVE NOR GATE 异或非74HC27 TRIPLE 3-INPUT NOR GATE三个3输入或非门74HC273 OCTAL D FLIP-FLOP CLEAR 8路D触发器74HC280 9BIT ODD/EVEN GENERATOR 奇偶发生器74HC283 4BIT BINARY ADDER CARRY 四位加法器74HC299 3-STATE UNIVERSAL SHIFT 三态移位寄存74HC30 8-INPUT NAND GATE 8输入端与非门74HC32 QUAD 2-INPUT OR GATE 四个双端或门74HC34 NON-INVERTER 非反向器74HC354 8-CH 3-STATE MUX 8路3态多路器74HC356 8-CH 3-STATE MUX 8路3态多路器74HC365 HEX 3-STATE BUFFER 六个三态缓冲门74HC366 3-STATE BUFFER INVERTER 缓冲反向器74HC367 3-STATE BUFFER INVERTER 缓冲反向器74HC368 3-STATE BUFFER INVERTER 缓冲反向器74HC373 3-STATE OCTAL D LATCHES 三态D型锁存器74HC374 3-STATE OCTAL D FLIPFLOP 三态D触发器74HC393 4-BIT BINARY COUNTER 4位二进制计数器74HC4016 QUAD ANALOG SWITCH 四路模拟量开关74HC4020 14-Stage Binary Counter 14输出计数器74HC4017 Decade Counter/Divider with 10 Decoded Outputs 十进制计数器带10个译码输出端74HC4040 12 Stage Binary Counter 12出计数器74HC4046 PHASE LOCK LOOP 相位监测输出器74HC4049 LEVEL DOWN CONVERTER 电平变低器74HC4050 LEVEL DOWN CONVERTER 电平变低器74HC4051 8-CH ANALOG MUX 8通道多路器74HC4052 4-CH ANALOG MUX 4通道多路器74HC4053 2-CH ANALOG MUX 2通道多路器74HC4060 14-STAGE BINARY COUNTER 14阶BIN计数74HC4066 QUAD ANALOG MUX 四通道多路器74HC4075 TRIPLE 3-INPUT OR GATE 3输入或门74HC42 BCD TO DECIMAL BCD转十进制译码器74HC423A RETRIGGERABLE MONOSTAB 可重触发单稳74HC4511 BCD-7 SEG DRIVER/DECODER 7段译码器74HC4514 4-16 LINE DECODER 4至16线译码器74HC4538A RETRIGGERAB MONOSTAB 可重触发单稳74HC4543 LCD BCD-7 SEG LCD用的BCD-7段译码驱动74HC51 AND OR GATE INVERTER 与或非门74HC521 8BIT MAGNITUDE COMPARATOR 判决定路74HC533 3-STATE D LATCH 三态D锁存器74HC534 3-STATE D FLIP-FLOP 三态D型触发器74HC540 3-STATE BUFFER 三态缓冲器74HC541 3-STATE BUFFER INVERTER三态缓冲反向器74HC58 DUAL AND OR GATE 与或门74HC589 3STATE 8BIT SHIFT 8位移位寄存三态输出74HC594 8BIT SHIFT REG 8位移位寄存器74HC595 8BIT SHIFT REG 8位移位寄存器出锁存74HC597 8BIT SHIFT REG 8位移位寄存器入锁存74HC620 3-STATE TRANSCEIVER 反向3态收发器74HC623 3-STATE TRANSCEIVER 八路三态收发器74HC640 3-STATE TRANSCEIVER 反向3态收发器74HC643 3-STATE TRANSCEIVER 八路三态收发器74HC646 NON-INVERT BUS TRANSCEIVER 总线收发器74HC648 INVERT BUS TRANCIVER 反向总线收发器74HC688 8BIT MAGNITUDE COMPARATOR 8位判决电路74HC7266 2-INPUT EXCLUSIVE NOR GATE 异或非门74HC73 DUAL J-K FLIP-FLOP W/CLEAR 双JK触发器74HC74A PRESET/CLEAR D FLIP-FLOP 双D触发器74HC75 4BIT BISTABLE LATCH 4位双稳锁存器74HC76 PRESET/CLEAR JK FLIP-FLOP 双JK触发器74HC85 4BIT MAGNITUDE COMPARATOR 4位判决电路74HC86 2INPUT EXCLUSIVE OR GATE 2输入异或门74HC942 BAUD MODEM 300BPS低速调制解调器74HC943 300 BAUD MODEM 300BPS低速调制解调器74LS00 QUAD 2-INPUT NAND GATES 与非门74LS02 QUAD 2-INPUT NOR GATES 或非门74LS03 QUAD 2-INPUT NAND GATES 与非门74LS04 HEX INVERTING GATES 反向器74LS05 HEX INVERTERS OPEN DRAIN 六路反向器74LS08 QUAD 2-INPUT AND GATE 与门74LS09 QUAD 2-INPUT AND GATES OC 与门74LS10 TRIPLE 3-INPUT NAND GATES 与非门74LS109 QUAD 2-INPUT AND GATES OC 与门74LS11 TRIPLE 3-INPUT AND GATES 与门74LS112 DUAL J-K FLIP-FLOP 双J-K触发器74LS113 DUAL J-K FLIP-FLOP PRESET 双JK触发器74LS114 NEGATIVE J-K FLIP-FLOP 负沿J-K触发器74LS122 Retriggerable Monostab 可重触发单稳74LS123 Retriggerable Monostable 可重触发单稳74LS125 TRI-STATE QUAD BUFFERS 四个三态门74LS13 QUAL 4-in NAND TRIGGER 4输入与非触发器74LS160 BCD DECADE 4BIT BIN COUNTERS 计数器74LS136 QUADRUPLE 2-INPUT XOR GATE 异或门74LS138 3-8 LINE DECODER 3线至8线译码器74LS139 2-4 LINE DECODER 2线至4线译码器74LS14 TRIGGERED HEX INVERTER 六触发反向器74HC147 10-4 LINE PRIORITY ENCODER 10-4编码器74HC148 8-3 LINE PRIORITY ENCODER 8-3编码器74HC149 8-8 LINE PRIORITY ENCODER 8-8编码器74LS151 8-CHANNEL DIGITAL MUX 8通道多路器74LS153 DUAL 4-INPUT MUX 双四输入多路器74LS155 2-4 LINE DECODER 2线至4线译码器74LS156 2-4 LINE DECODER/DEMUX 2-4译码器74LS157 QUAD 2-INPUT MUX 四个双端多路器74LS158 2-1 LINE MUX 2-1线多路器74LS160A BINARY COUNTER 二进制计数器74LS161A BINARY COUNTER 二进制计数器74LS162A BINARY COUNTER 二进制计数器74LS163A DECADE COUNTERS 十进制计数器74LS164 SERIAL-PARALLEL SHIFT REG 串入并出74LS168 BI-DIRECT BCD TO DECADE 双向计数器74LS169 4BIT UP/DN BIN COUNTER 四位加减计数器74LS173 TRI-STATE D FLIP-FLOP 三态D触发器74LS174 HEX D FLIP-FLOP W/CLEAR 六D触发器74LS175 HEX D FLIP-FLOP W/CLEAR 六D触发器74LS190 BINARY UP/DN COUNTER 二进制加减计数器74LS191 DECADE UP/DN COUNTER 十进制加减计数器74LS192 DECADE UP/DN COUNTER 十进制加减计数器74LS193 BINARY UP/DN COUNTER 二进制加减计数器74LS194A 4BIT BI-DIR SHIFT 4位双向移位寄存器74LS195A 4BIT PARALLEL SHIFT4位并行移位寄存器74LS20 QUAD 4-INPUT NAND GATE 四个四入与非门74LS21 4-INPUT AND GATE 四输入端与门74LS240 OCTAL 3-STATE BUFFER 八个三态缓冲门74LS244 OCTAL 3-STATE BUFFER 八个三态缓冲门74LS245 OCTAL 3-STATE TRANSCEIVER 三态收发器74LS253 DUAL 4-CH 3-STATE MUX 4路3态多路器74LS256 4BIT ADDRESS LATCH 四位可锁存锁存器74LS257 QUAD 2-CH 3-STATE MUX 4路3态多路器74LS258 2-CH 3-STATE MUX 2路3态多路器74LS27 TRIPLE 3-INPUT NOR GATES 三输入或非门74LS279 QUAD R-S LATCHES 四个RS非锁存器74LS28 QUAD 2-INPUT NOR BUFFER 四双端或非缓冲74LS283 4BIT BINARY ADDER CARRY 四位加法器74LS30 8-INPUT NAND GATES 八输入端与非门74LS32 QUAD 2-INPUT OR GATES 二输入或门74LS352 4-1 LINE SELECTOR/MUX 4-1线选择多路器74LS365 HEX 3-STATE BUFFER 六个三态缓冲门74LS367 3-STATE BUFFER INVERTER 缓冲反向器74LS368A 3-STATE BUFFER INVERTER 缓冲反向器74LS373 OCT LATCH W/3-STATE OUT三态输出锁存器74LS76 Dual JK Flip-Flop w/set 2个JK触发器74LS379 QUAD PARALLEL REG 四个并行寄存器74LS38 2-INPUT NAND GATE BUFFER 与非门缓冲器74LS390 DUAL DECADE COUNTER 2个10进制计数器74LS393 DUAL BINARY COUNTER 2个2进制计数器74LS42 BCD TO DECIMAL BCD转十进制译码器74LS48 BCD-7 SEG BCD-7段译码器74LS49 BCD-7 SEG BCD-7段译码器74LS51 AND OR GATE INVERTER 与或非门74LS540 OCT Buffer/Line Driver 8路缓冲驱动器74LS541 OCT Buffer/LineDriver 8路缓冲驱动器74LS74 D-TYPE FLIP-FLOP D型触发器74LS682 8BIT MAGNITUDE COMPARATOR 8路比较器74LS684 8BIT MAGNITUDE COMPARATOR 8路比较器74LS75 QUAD LATCHES 双锁存器74LS83A 4BIT BINARY ADDER CARRY 四位加法器74LS85 4BIT MAGNITUDE COMPARAT 4位判决电路74LS86 2INPUT EXCLUSIVE OR GATE 2输入异或门74LS90 DECADE/BINARY COUNTER 十/二进制计数器74LS95B 4BIT RIGHT/LEFT SHIFT 4位左右移位寄存74LS688 8BIT MAGNITUDE COMPARAT 8位判决电路74LS136 2-INPUT XOR GATE 2输入异或门74LS651 BUS TRANSCEIVERS 总线收发器74LS653 BUS TRANSCEIVERS 总线收发器74LS670 3-STATE 4-BY-4 REG 3态4-4寄存器74LS73A DUAL J-K FLIP-FLOP W/CLEAR 双JK触发器。
74系列芯片种类及的命名含义
74系列芯片种类及的命名含义CD4000/74系列是逻辑IC中使用最多的。
74系列原来可以说是TTL的代名词，目前，由于CMOS型的74系列也有很多种类做出，在许多高速的逻辑系统中，几乎仅有可能使用CMOS的74系列设计。
表1 74系列的数字符IC的种类与区别TTL型IC编号VOH VIH VOL VIL 传递延迟功率消耗标准型74XX 2.4V 2.0V 0.4V 0.8V 9ns 10mW低功率型74LXX 2.4V 2.0V 0.3V 0.8V 33 ns 1 mW高速型74HXX 2.4V 2.0V 0.4V 0.8V 6 ns 23 mW萧特基型74SXX 2.7V 2.0V 0.5V 0.8V 3 ns 23 mW低功率萧特基型74LSXX 2.7V 2.0V 0.5V 0.8V 9.5 ns 2 mW高级萧特基型74ASXX 3.0V 2.0V 0.5V 0.8V 1.5 ns 8 mW高级低功率萧特基型74ALSXX 3.0V 2.0V 0.4V 0.8V 4 ns 1.2 mWCMOS型早期CMOS CD40XX CD45XX 0.01 mW第一个以CMOS设计而接脚与TTL兼容的CMOS 版本74Cxx 3.5V 0.1V 1.5V 7 ns 0.01 mW 与TTL引脚相容以高速CMOS做的IC 74HCxx 4.9V 3.5V 0.1V 1.5V 7 ns 0.01 mW 与TTL引脚相容高速CMOS 74HCTxx 4.9V 2.0V 0.1V 0.8V 8 ns 0.01 mW 与TTL引脚，电性能兼容高速CMOS,设计用來与74ALS竞争74ACxx 4.9V 3.5V 0.1V 1.5V 6 ns 0.01 mW 与TTL引脚，电性能不兼容高性能CMOS 74ACTxx 4.9V 3.5V 0.1V 1.5V 6 ns 0.01 mW 与TTL引脚不兼容，但电性能相同注：XX处一般为2~3位数的数字，各代表同一功能。
138译码器 文档
74h c138 3-8线译码器,译码器也称解码器，译码过程实际上是一种翻译过程,即编码之逆过程。
译码器之输入是n位二值代码，输出是m个表征代码原意之状态信号（或另一种代码）。
一般情况下有m小于等于2之n次方，即译码器输入线比输出线要少。
译码器按其功能可分为三大类：（1）变量译码器：将输入之二进制代码还原为原始输入信号。
例如有两位二进制代码（0 ，1），可经译码器还原为四个信号状态（0，0）（0，1）（1，0) (1，1)（2）代码变换译码器：用于将一个数据之不同代码之间之相互转换。
例如二－十进制译码器可将8421码转换为十个状态。
（3）显示译码器：将数字、文字或符号之代码还原成相应之数字、文字、符号并显示出来之电路74hc138 3-8线译码器/CD74HC138 ，CD74HC238和CD74HCT138 ，CD74 HCT238是高速硅栅CMOS解码器，适合内存地址解码或数据路由应用。
hc138 作用原理于高性能之存贮译码或要求传输延迟时间短之数据传输系统,在高性能存贮器系统中,用这种译码器可以提高译码系统之效率。
将快速赋能电路用于高速存贮器时,译码器之延迟时间和存贮器之赋能时间通常小于存贮器之典型存取时间,这就是说由肖特基钳位之系统译码器所引起之有效系统延迟可以忽略不计。
HC138 按照三位二进制输入码和赋能输入条件,从8 个输出端中译出一个低电平输出。
两个低电平有效之赋能输入端和一个高电平有效之赋能输入端减少了扩展所需要之外接门或倒相器,扩展成24 线译码器不需外接门;扩展成32 线译码器,只需要接一个外接倒相器。
在解调器应用中,赋能输入端可用作数据输入端。
图1 引脚图图2 功能图图3 测试电路和波形应用电路：图4 舞台发光二极管灯光图5 可编程时钟定时器电路由上表可见74HC138译码器输出低电平有效。
为增加译码器功能，除三个输入端C、 B、 A 外，还设置了G1、/G2A，/G2B，使译码器具有较强之抗干扰能力且便于扩展。
74系列各个芯片详细介绍
74系列芯片资料程序匠人发表于 2005-10-29 19:20:00 阅读全文(2477) | 回复(0) | 引用通告(0) | 编辑74系列芯片资料反相器驱动器 LS04 LS05 LS06 LS07 LS125 LS240 LS244 LS245与门与非门 LS00 LS08 LS10 LS11 LS20 LS21 LS27 LS30 LS38或门或非门与或非门 LS02 LS32 LS51 LS64 LS65异或门比较器 LS86译码器 LS138 LS139寄存器 LS74 LS175 LS373反相器:Vcc 6A 6Y 5A 5Y 4A 4Y 六非门74LS04 ┌┴─┴─┴─┴─┴─┴─┴┐六非门(OC门) 74LS05_ │1413 12 11 10 9 8│六非门(OC高压输出) 74LS06Y = A ）││ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1Y 2A 2Y 3A 3Y GND驱动器:Vcc 6A 6Y 5A 5Y 4A 4Y┌┴─┴─┴─┴─┴─┴─┴┐│1413 12 11 10 9 8│Y = A ）│六驱动器(OC高压输出) 7 4LS07│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1Y 2A 2Y 3A 3Y GNDVcc -4C 4A 4Y -3C 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐_ │1413 12 11 10 9 8│Y =A+C ）│四总线三态门 74LS125 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘-1C 1A 1Y -2C 2A 2Y GNDVcc -G B1 B2 B3 B4 B8 B6 B7 B8┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐8位总线驱动器 74LS245│2019 18 17 16 15 14 13 12 11│）│DIR =1 A=>B│ 1 2 3 4 5 6 7 8 9 10│DIR=0 B=>A└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘DIR A1 A2 A3 A4 A5 A6 A7 A8 GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器正逻辑与门,与非门:Vcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐│1413 12 11 10 9 8│Y = AB ）│2输入四正与门 74LS08 │ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐__ │1413 12 11 10 9 8│Y = AB ）│2输入四正与非门 74LS 00│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 1C 1Y 3C 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐___ │1413 12 11 10 9 8│Y = ABC ）│3输入三正与非门 74LS 10│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 2A 2B 2C 2Y GNDVcc H G Y┌┴─┴─┴─┴─┴─┴─┴┐│1413 12 11 10 9 8│）│8输入与非门 74LS30│ 1 2 3 4 5 6 7│________└┬─┬─┬─┬─┬─┬─┬┘Y = ABCDEFGHA B C D E F GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器正逻辑或门,或非门:Vcc 4B 4A 4Y 3B 3A 3Y┌┴─┴─┴─┴─┴─┴─┴┐2输入四或门 74LS32│1413 12 11 10 9 8│）│Y = A+B│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2A 2B 2Y GNDVcc 4Y 4B 4A 3Y 3B 3A┌┴─┴─┴─┴─┴─┴─┴┐2输入四或非门 74LS02│1413 12 11 10 9 8│ ___）│ Y = A+B│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1Y 1A 1B 2Y 2A 2B GNDVcc 2Y 2B 2A 2D 2E 1F┌┴─┴─┴─┴─┴─┴─┴┐双与或非门 74S51│1413 12 11 10 9 8│ _____）│2Y = AB+DE│ 1 2 3 4 5 6 7│ _______└┬─┬─┬─┬─┬─┬─┬┘1Y = ABC+DEF1Y 1A 1B 1C 1D 1E GNDVcc D C B K J Y┌┴─┴─┴─┴─┴─┴─┴┐4-2-3-2与或非门 74S64 74S65(OC门)│1413 12 11 10 9 8│______________）│Y = ABCD+EF+GHI+JK│ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘A E F G H I GND页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器2输入四异或门 74LS86Vcc 4B 4A 4Y 3Y 3B 3A┌┴─┴─┴─┴─┴─┴─┴┐│1413 12 11 10 9 8│）│_ _│ 1 2 3 4 5 6 7│Y=AB+AB└┬─┬─┬─┬─┬─┬─┬┘1A 1B 1Y 2Y 2A 2B GND8*2输入比较器 74LS688_Vcc Y B8 A8 B7 A7 B6 A6 B5 A5┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐8*2输入比较器 74LS688│2019 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘CE A1 B1 A2 B2 A3 B3 A4 B4 GND_Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8页首非门,驱动器与门,与非门或门,或非门异或门,比较器译码器寄存器3-8译码器 74LS138Vcc -Y0 -Y1 -Y2 -Y3 -Y4 -Y5 -Y6 __ _ _ _ __ _ _ __ _ _ __ _ ┌┴─┴─┴─┴─┴─┴─┴─┴┐Y0=A B C Y1=A B B Y2=A B C Y3=A B C│1615 14 13 12 11 10 9 │）│__ _ _ ___ __ _ __│ 1 2 3 4 5 6 7 8│Y4=A B C Y5=A B C Y6=A B C Y 7=A B C└┬─┬─┬─┬─┬─┬─┬─┬┘A B C -CS0 -CS1 CS2 -Y7 GND双2-4译码器 74LS139Vcc -2G 2A 2B -Y0 -Y1 -Y2 -Y3 __ __ __ __ __ __ __ __┌┴─┴─┴─┴─┴─┴─┴─┴┐Y0=2A 2B Y1=2A 2B Y2=2A 2B Y3=2A 2B│1615 14 13 12 11 10 9 │）│__ __ __ __ __ __ __ __│ 1 2 3 4 5 6 7 8│Y0=1A 1B Y1=1A 1B Y2=1A 1B Y 3=1A 1B└┬─┬─┬─┬─┬─┬─┬─┬┘-1G 1A 1B -Y0 -Y1 -Y2 -Y3 GND8*2输入比较器 74LS688_Vcc Y B8 A8 B7 A7 B6 A6 B5 A5┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐8*2输入比较器 74LS688│2019 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘CE A1 B1 A2 B2 A3 B3 A4 B4 GND_Y=A1⊙B1+A2⊙B2+A3⊙B3+A4⊙B4+A5⊙B5+A6⊙B6+A7⊙B7+A8⊙B8寄存器:Vcc 2CR 2D 2Ck 2St 2Q -2Q┌┴─┴─┴─┴─┴─┴─┴┐双D触发器 74LS74│1413 12 11 10 9 8 │）││ 1 2 3 4 5 6 7│└┬─┬─┬─┬─┬─┬─┬┘1Cr 1D 1Ck 1St 1Q -1Q GNDVcc 8Q 8D 7D 7Q 6Q 6D 5D 5Q ALE┌┴─┴─┴─┴─┴─┴─┴─┴─┴─┴┐8位锁存器 74LS373│2019 18 17 16 15 14 13 12 11│）││ 1 2 3 4 5 6 7 8 9 10│└┬─┬─┬─┬─┬─┬─┬─┬─┬─┬┘-OE 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND型号器件名称厂牌[数据表]SN7400四2输入端与非门 TI[DATA]SN7401四2输入端与非门(OC) SN7402四2输入端或非门 TI[DATA]SN7403四2输入端与非门(OC)TI[DATA]SN7404六反相器 TI[DATA]SN7405六反相器(O C)TI[DATA]SN7406六高压输出反相器(OC,30V)TI[DATA]SN7407六高压输出缓冲,驱动器(OC,30V)TI[DATA]SN7408四2输入端与门TI[DATA]SN7409四2输入端与门(OC)TI[DATA]SN7410三3输入端与非门 TI[DATA]SN7412三3输入端与非门(OC)TI[DATA]SN7413双4输入端与非门TI[DATA]SN7414六反相器TI[DATA]SN7416六高压输出反相缓冲/驱动器 I[DATA]SN7417六高压输出缓冲/驱动器(OC,15V)TI[DATA]SN7420双4输入端与非门 TI[DATA]SN7422双4输入端与非门(OC)TI[DATA]SN7423可扩展双4输入端或非门 TI[DATA]SN7425双4输入端或非门TI[DATA]SN7426四2输入端高压输出与非缓冲器 [DATA]SN7427三3输入端或非门TI[DATA]SN7428四2输入端或非缓冲器 I[DATA]SN74308输入端与非门TI[DATA]SN7432四2输入端或门。
74hc系列芯片
74hc系列芯片74HC系列芯片是由NXP公司生产的一种CMOS逻辑集成电路系列。
此系列芯片的特点是功耗低、工作速度快、输入输出电平兼容TTL、输入阻抗高、噪声抑制性能好、工作温度范围广等。
因此，74HC系列芯片在数字系统和电子设备中得到了广泛应用。
74HC系列芯片具有多种功能，包括逻辑门、锁存器、计数器、选择器、多路复用器、分频器等。
这些功能不同的芯片可以满足不同的应用需求。
下面将对几个常用的74HC系列芯片进行介绍。
1. 74HC00：74HC00是一个四个二输入与门芯片。
它可以执行逻辑与操作，并且输出可以与其他逻辑门级联实现更复杂的逻辑功能。
该芯片通常用作数字系统中的数据选择器、信号触发器等。
2. 74HC08：74HC08是一个四个二输入与非门芯片。
与逻辑与门不同，逻辑与非门的输出是逻辑与门输出的反相信号。
该芯片可用于数字系统中的布尔代数运算、信号解码和数据传输等。
3. 74HC138：74HC138是一个三线到八线译码器/多路复用器。
它具有三个输入线和八个输出线，可以通过输入控制信号将一个特定的输出线与输入线相连。
该芯片常用于十进制数据的显示、地址解码和选择器等应用。
4. 74HC595：74HC595是一个八位移位寄存器。
它可以将数据按照指定的顺序移位存储，并通过串行输入和并行输出的方式与其他逻辑门级联。
该芯片常用于扩展I/O端口、控制LED 显示、驱动数码管等应用。
5. 74HC4040：74HC4040是一个二进制计数器。
它具有十二个计数位和一个异步复位端口，可以按照特定的时钟信号进行二进制计数，并通过输出端口显示计数值。
该芯片广泛应用于时序控制、频率分频器等数字电路中。
除了上述常用的74HC系列芯片，还有许多其他功能的芯片，如74HC04（六个反相器）、74HC14（六个反相器带施密特触发器）等。
这些芯片以其高性能、低功耗、多功能的特点，为数字系统和电子设备的设计者提供了灵活性和便利性。
74LV138BQ资料
74LV1383-to-8 line decoder/demultiplexer; invertingRev. 03 — 15 November 2007Product data sheet1.General descriptionThe 74LV138 is a low-voltage Si-gate CMOS device that is pin and function compatiblewith 74HC138 and 74HCT138.The 74LV138 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weightedaddress inputs (A0,A1and A2) and, when enabled, provides eight mutually exclusiveactive LOW outputs (Y0to Y7).There are three enable inputs: two active LOW (E1and E2) and one active HIGH (E3).Every output will be HIGH unless E1and E2 are LOW and E3 is HIGH.This multiple enable function allows easy parallel expansion of the device to a 1-of-32(5lines to32lines) decoder with just four74LV138 devices and one inverter. The74LV138 can be used as an eight output demultiplexer by using one of the active LOWenable inputs as the data input and the remaining enable inputs as strobes. Unusedenable inputs must be permanently tied to their appropriate active HIGH or LOW state. 2.Featuress Wide operating voltage: 1.0 V to 5.5 Vs Optimized for low voltage applications: 1.0 V to 3.6 Vs Accepts TTL input levels between V CC = 2.7 V and V CC = 3.6 Vs Typical output ground bounce < 0.8 V at V CC = 3.3 V and T amb = 25°Cs Typical HIGH-level output voltage (V OH) undershoot: > 2 V at V CC = 3.3 V andT amb=25°Cs Demultiplexing capabilitys Multiple input enable for easy expansions Ideal for memory chip select decodings Active LOW mutually exclusive outputss ESD protection:x HBM JESD22-A114E exceeds 2000Vx MM JESD22-A115-A exceeds 200Vs Multiple package optionss Specified from−40°C to+85°C and from−40°C to+125°C3.Ordering information4.Functional diagramTable 1.Ordering informationType numberPackageTemperature rangeName DescriptionVersion 74LV138N −40°C to +125°C DIP16plastic dual in-line package; 16leads (300mil)SOT38-474LV138D −40°C to +125°C SO16plastic small outline package; 16 leads;body width 3.9mmSOT109-174LV138DB −40°C to +125°C SSOP16plastic shrink small outline package; 16 leads;body width 5.3mmSOT338-174LV138PW −40°C to +125°C TSSOP16plastic thin shrink small outline package; 16 leads;body width 4.4mmSOT403-174LV138BQ−40°C to +125°CDHVQFN16plastic dual in-line compatible thermal enhanced verythin quad flat package; no leads; 16 terminals;body 2.5×3.5× 0.85mmSOT763-1Fig 1.Logic symbol Fig 2.IEC logic symbolY0Y1Y2Y3Y4Y5Y6Y779101112131415A0A1A2321654E2E1E3mna370mna371791011121314&X/Y157EN6543210654321142791011121314&DX(a)(b)15765432106543212G 075.Pinning information5.1PinningFig 3.Functional diagrammna372ENABLE EXITINGY0Y1Y2Y3Y4Y5Y6Y779101112131415A0A1A23-to-8DECODER321654E2E1E3(1)The die substrate is attached to this pad usingconductive die attach material.It can not be used as a supply pin or input.Fig 4.Pin configuration DIP16, SO16 and (T)SSOP16Fig 5.Pin configuration DHVQFN16138A0V CC A1Y0A2Y1E1Y2E2Y3E3Y4Y7Y5GNDY6001aad03312345678109121114131615001aah10674LV138Y7Y5E3Y4E2Y3E1Y2A2Y1A1Y0G N DY 6A 0V C CTransparent top view71061151241331421589116terminal 1index areaV CC (1)5.2Pin descriptionTable 2.Pin descriptionSymbol Pin DescriptionA01address inputA12address inputA23address inputE14enable input (active LOW)E25enable input (active LOW)E36enable input (active HIGH)GND8ground (0V)Y0 to Y715, 14, 13, 12, 11, 10, 9, 7outputV CC16supply voltage6.Functional descriptionTable 3.Function tableH=HIGH voltage level; L=LOW voltage level; X=don’t careInput OutputE1E2E3A0A1A2Y0Y1Y2Y3Y4Y5Y6Y7 H X X X X X H H H H H H H H X H X X X X H H H H H H H H X X L X X X H H H H H H H H L L H L L L L H H H H H H H L L H H L L H L H H H H H H L L H L H L H H L H H H H H L L H H H L H H H L H H H H L L H L L H H H H H L H H H L L H H L H H H H H H L H H L L H L H H H H H H H H L H L L H H H H H H H H H H H L7.Limiting valuesTable 4.Limiting valuesIn accordance with the Absolute Maximum Rating System (IEC 60134).Voltages are referenced to GND (ground = 0V). Symbol Parameter Conditions Min Max Unit V CC supply voltage−0.5+7.0VI IK input clamping current V I <−0.5V or V I>V CC+0.5V[1]-±20mA I OK output clamping current V O<−0.5V or V O>V CC+0.5V[1]-±50mA I O output current V O =−0.5V to (V CC+0.5V)-±25mA I CC supply current-50mA I GND ground current−50-mA T stg storage temperature−65+150°CTable 4.Limiting values …continuedIn accordance with the Absolute Maximum Rating System (IEC 60134).Voltages are referenced to GND (ground = 0V). Symbol Parameter Conditions Min Max Unit P tot total power dissipation T amb =−40°C to +125°CDIP16 package[2]-750mWSO16 package[3]-500mW(T)SSOP16 package[4]-500mWDHVQFN16 package[5]-500mW[1]The input and output voltage ratings may be exceeded if the input and output current ratings are observed.[2]P tot derates linearly with 12mW/K above 70°C.[3]P tot derates linearly with 8mW/K above 70°C.[4]P tot derates linearly with 5.5mW/K above 60°C.[5]P tot derates linearly with 4.5mW/K above 60°C.8.Recommended operating conditionsTable 5.Recommended operating conditionsVoltages are referenced to GND (ground = 0 V).Symbol Parameter Conditions Min Typ Max Unit V CC supply voltage[1] 1.0 3.3 5.5VV I input voltage0-V CC VV O output voltage0-V CC VT amb ambient temperature−40+25+125°C∆t/∆V input transition rise and fall rate V CC = 1.0 V to 2.0 V--500ns/VV CC = 2.0 V to 2.7 V--200ns/VV CC = 2.7 V to 3.6 V--100ns/VV CC = 3.6 V to 5.5 V--50ns/V [1]The static characteristics are guaranteed from V CC = 1.2V to V CC = 5.5V, but LV devices are guaranteed to function down toV CC=1.0V (with input levels GND or V CC).9.Static characteristicsTable 6.Static characteristicsVoltages are referenced to GND (ground = 0 V).Symbol Parameter Conditions−40°C to+85°C−40°C to+125°C UnitMin Typ[1]Max Min MaxV IH HIGH-level input voltage V CC= 1.2 V0.9--0.9-VV CC= 2.0 V 1.4-- 1.4-VV CC = 2.7 V to 3.6 V 2.0-- 2.0-VV CC = 4.5 V to 5.5 V0.7V CC--0.7V CC-VV IL LOW-level input voltage V CC= 1.2 V--0.3-0.3VV CC= 2.0 V--0.6-0.6VV CC = 2.7 V to 3.6 V--0.8-0.8VV CC = 4.5 V to 5.5 V--0.3V CC-0.3V CC V[1]Typical values are measured at T amb = 25°C.V OHHIGH-level output voltageV I = V IH or V ILl O =−100µA; V CC = 1.2V - 1.2---V l O =−100µA; V CC = 2.0V 1.8 2.0- 1.8-V l O =−100µA; V CC = 2.7V 2.5 2.7- 2.5-V l O =−100µA; V CC = 3.0V 2.8 3.0- 2.8-V l O =−100µA; V CC = 4.5V 4.3 4.5- 4.3-V l O =−6 mA; V CC = 3.0V 2.4 2.82- 2.2-V l O =−12 mA; V CC = 4.5V3.64.2- 3.5-V V OLLOW-level output voltageV I = V IH or V ILI O = 100µA; V CC = 1.2V -0---V I O = 100µA; V CC = 2.0V -00.2-0.2V I O = 100µA; V CC = 2.7V -00.2-0.2V I O = 100µA; V CC = 3.0V -00.2-0.2V I O = 100µA; V CC = 4.5V -00.2-0.2V I O = 6 mA; V CC = 3.0V -0.250.40-0.50V I O = 12 mA; V CC = 4.5V-0.350.55-0.65V I I input leakage current V I =V CC or GND;V CC =5.5V-- 1.0- 1.0µA I CC supply currentV I = V CC or GND; I O = 0A;V CC =5.5V--20.0-160µA ∆I CC additional supply current per input; V I = V CC − 0.6V;V CC =2.7V to 3.6V--500-850µA C Iinput capacitance- 3.5---pFTable 6.Static characteristics …continued Voltages are referenced to GND (ground = 0 V).Symbol Parameter Conditions −40°C to +85°C −40°C to +125°C Unit Min Typ [1]Max Min Max10.Dynamic characteristics[1]All typical values are measured at T amb =25°C.[2]t pd is the same as t PLH and t PHL .[3]Typical values are measured at nominal supply voltage (V CC = 3.3V).[4]C PD is used to determine the dynamic power dissipation (P D in µW).P D =C PD ×V CC 2×f i ×N +Σ(C L ×V CC 2×f o )where:f i = input frequency in MHz, f o =output frequency in MHz C L =output load capacitance in pF V CC =supply voltage in VN =number of inputs switchingΣ(C L ×V CC 2×f o )=sum of the outputs.Table 7.Dynamic characteristics GND = 0 V; For test circuit see Figure 8.Symbol Parameter Conditions−40°C to +85°C −40°C to +125°C UnitMin Typ [1]Max Min Max t pdpropagation delayAn to Yn; see Figure 6[2]V CC = 1.2 V -75---ns V CC = 2.0 V -2644-55ns V CC = 2.7 V-1931-39ns V CC = 3.0 V to 3.6 V; C L =15pF [3]-12---ns V CC = 3.0 V to 3.6 V [3]-1526-32ns V CC = 4.5 V to 5.5 V--17-22nsE3,En to Yn; see Figure 6 and Figure 7V CC = 1.2 V -75---ns V CC = 2.0 V -2643-53ns V CC = 2.7 V-1930-38ns V CC = 3.0 V to 3.6 V; C L =15pF [3]-14---ns V CC = 3.0 V to 3.6 V [3]-1525-31ns V CC = 4.5 V to 5.5 V--19-24ns C PDpower dissipation capacitanceC L =50pF; f i = 1 MHz;V I =GND to V CC[4]-45---pF11.WaveformsMeasurement points are given in Table 8.V OL and V OH are typical voltage output levels that occur with the output load.Fig 6.The inputs An, E3 to outputs Yn propagation delays001aah080Yn outputV OHV OLV CCGNDAn, E3 inputV Mt PHLt PLHV MMeasurement points are given in Table 8.V OL and V OH are typical voltage output levels that occur with the output load.Fig 7.The inputs En to outputs Yn propagation delays 001aah081t PLHt PHLV MV MYn outputE1, E2 inputV CCGNDV OHV OLTable 8.Measurement pointsSupply voltageV CC Input V M Output V M < 2.7 V 0.5V CC 0.5V CC 2.7V to 3.6V 1.5 V 1.5 V ≥ 4.5 V0.5V CC0.5V CCTest data is given in T able 9.Definitions test circuit:R T = Termination resistance should be equal to output impedance Z o of the pulse generator.R L = Load resistance.C L = Load capacitance including jig and probe capacitance.Fig 8.Load circuit for switching times V CCV IV O001aaa663D.U.T.C L 50 pFR TR L 1 k ΩPULSE GENERATORTable 9.Test dataSupply voltageV CC Input V I t r , t f < 2.7 V V CC ≤ 2.5 ns 2.7V to 3.6V 2.7 V ≤ 2.5 ns ≥ 4.5 VV CC≤ 2.5 ns12.Package outlineFig 9.Package outline SOT38-4 (DIP16)REFERENCESOUTLINE VERSION EUROPEAN PROJECTIONISSUE DATE IECJEDECJEITASOT38-495-01-1403-02-13M Hc(e )1M EALs e a t i n g p l a n eA 1w Mb 1b 2eDA 2Z16198Epin 1 indexb0510 mmscaleNote1. Plastic or metal protrusions of 0.25 mm (0.01 inch) maximum per side are not included.UNIT Amax.12b 1(1)(1)(1)b 2c D E e M Z H L mm DIMENSIONS (inch dimensions are derived from the original mm dimensions)A min. A max.b max.w M E e 11.731.300.530.380.360.2319.5018.55 6.486.20 3.603.050.2542.547.628.257.8010.08.30.764.20.51 3.2inches0.0680.0510.0210.0150.0140.0091.250.850.0490.0330.770.730.260.240.140.120.010.10.30.320.310.390.330.030.170.020.13DIP16: plastic dual in-line package; 16 leads (300 mil)SOT38-4Fig 10.Package outline SOT109-1 (SO16)Xw MθAA 1A 2b pD H EL pQdetail XE Z ecL v M A(A )3A89116ypin 1 indexUNIT Amax.A 1A 2A 3b p c D (1)E (1)(1)e H E L L p Q Z y w v θREFERENCESOUTLINE VERSION EUROPEAN PROJECTIONISSUE DATE IEC JEDEC JEITAmm inches1.750.250.101.451.250.250.490.360.250.1910.09.84.03.8 1.27 6.25.80.70.60.70.380oo 0.250.1DIMENSIONS (inch dimensions are derived from the original mm dimensions)Note1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.1.00.4 SOT109-199-12-2703-02-19076E07MS-0120.0690.0100.0040.0570.0490.010.0190.0140.01000.00750.390.380.160.150.051.050.0410.2440.2280.0280.0200.0280.0120.010.250.010.0040.0390.0160 2.5 5 mmscaleSO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1Fig 11.Package outline SOT338-1 (SSOP16)UNIT A 1A 2A 3b p c D (1)E (1)e H E L L p Q Z y w v θ REFERENCESOUTLINE VERSION EUROPEAN PROJECTIONISSUE DATE IECJEDEC JEITAmm0.210.051.801.650.250.380.250.200.096.46.05.45.20.651.257.97.61.030.630.90.71.000.5580oo 0.130.20.1DIMENSIONS (mm are the original dimensions)Note1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.SOT338-199-12-2703-02-19(1)w Mb pD H EE Z ecv M AXAy18169θAA 1A 2L p Qdetail XL(A )3MO-150pin 1 index0 2.5 5 mmscaleSSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm SOT338-1Amax.2Fig 12.Package outline SOT403-1 (TSSOP16)UNIT A 1A 2A 3b p c D (1)E (2)(1)e H E L L p Q Z y w v θ REFERENCESOUTLINE VERSION EUROPEAN PROJECTIONISSUE DATE IECJEDEC JEITAmm0.150.050.950.800.300.190.20.15.14.94.54.30.656.66.20.40.30.400.0680oo 0.130.10.21DIMENSIONS (mm are the original dimensions)Notes1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.0.750.50SOT403-1MO-15399-12-2703-02-18w Mb pD Ze0.2518169θAA 1A 2L p Qdetail XL(A )3H EE cv M AXAy0 2.5 5 mmscaleTSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403-1Amax.1.1pin 1 indexFig 13.Package outline SOT763-1 (DHVQFN16)terminal 1index area0.51A 1E h b UNIT y e 0.2c REFERENCESOUTLINE VERSION EUROPEAN PROJECTIONISSUE DATE IEC JEDEC JEITA mm 3.63.4D h 2.151.85y 12.62.41.150.85e 12.50.300.180.050.000.050.1DIMENSIONS (mm are the original dimensions) SOT763-1MO-241- - -- - -0.50.3L 0.1v 0.05w 02.5 5 mmscaleSOT763-1DHVQFN16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads;16 terminals; body 2.5 x 3.5 x 0.85 mmA (1)max.AA 1cdetail Xyy 1Ce LE hD h e e 1b27151098116XD EC B Aterminal 1index areaA C CB v M w M E (1)Note1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.D (1)02-10-1703-01-2713.Abbreviations14.Revision historyTable 10.AbbreviationsAcronym DescriptionCMOS Complementary Metal Oxide Semiconductor DUT Device Under Test ESD ElectroStatic Discharge HBM Human Body Model MM Machine ModelTTLT ransistor-Transistor LogicTable 11.Revision historyDocument IDRelease date Data sheet status Change notice Supersedes 74LV138_320071115Product data sheet-74LV138_2Modifications:•The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors.•Legal texts have been adapted to the new company name where appropriate.•Section 3: DHVQFN16 package added.•Section 8: derating values added for DHVQFN16 package.•Section 12: outline drawing added for DHVQFN16 package.74LV138_219980428Product specification -74LV138_174LV138_119970203Product specification--15.Legal information15.1Data sheet status[1]Please consult the most recently issued document before initiating or completing a design.[2]The term ‘short data sheet’ is explained in section “Definitions”.[3]The product status of device(s)described in this document may have changed since this document was published and may differ in case of multiple devices.The latest product status information is available on the Internet at URL .15.2DefinitionsDraft —The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. NXP Semiconductors does not give any representations or warranties as to the accuracy or completeness ofinformation included herein and shall have no liability for the consequences of use of such information.Short data sheet —A short data sheet is an extract from a full data sheet with the same product type number(s)and title.A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local NXP Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail.15.3DisclaimersGeneral —Information in this document is believed to be accurate andreliable.However,NXP Semiconductors does not give any representations or warranties,expressed or implied,as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information.Right to make changes —NXP Semiconductors reserves the right to make changes to information published in this document, including withoutlimitation specifications and product descriptions, at any time and without notice.This document supersedes and replaces all information supplied prior to the publication hereof.Suitability for use —NXP Semiconductors products are not designed,authorized or warranted to be suitable for use in medical, military, aircraft,space or life support equipment, nor in applications where failure ormalfunction of an NXP Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmentaldamage. NXP Semiconductors accepts no liability for inclusion and/or use of NXP Semiconductors products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.Applications —Applications that are described herein for any of these products are for illustrative purposes only. NXP Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification.Limiting values —Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134)may cause permanent damage to the device.Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in theCharacteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability.Terms and conditions of sale —NXP Semiconductors products are sold subject to the general terms and conditions of commercial sale,as published at /profile/terms , including those pertaining to warranty,intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by NXP Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail.No offer to sell or license —Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant,conveyance or implication of any license under any copyrights,patents or other industrial or intellectual property rights.15.4TrademarksNotice:All referenced brands,product names,service names and trademarks are the property of their respective owners.16.Contact informationFor additional information, please visit:For sales office addresses, send an email to:salesaddresses@Document status [1][2]Product status [3]DefinitionObjective [short] data sheet Development This document contains data from the objective specification for product development.Preliminary [short] data sheet Qualification This document contains data from the preliminary specification.Product [short] data sheetProductionThis document contains the product specification.17.Contents1General description. . . . . . . . . . . . . . . . . . . . . . 12Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Ordering information. . . . . . . . . . . . . . . . . . . . . 24Functional diagram . . . . . . . . . . . . . . . . . . . . . . 25Pinning information. . . . . . . . . . . . . . . . . . . . . . 35.1Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35.2Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 46Functional description . . . . . . . . . . . . . . . . . . . 47Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 48Recommended operating conditions. . . . . . . . 59Static characteristics. . . . . . . . . . . . . . . . . . . . . 510Dynamic characteristics . . . . . . . . . . . . . . . . . . 711Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 812Package outline . . . . . . . . . . . . . . . . . . . . . . . . 1013Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 1514Revision history. . . . . . . . . . . . . . . . . . . . . . . . 1515Legal information. . . . . . . . . . . . . . . . . . . . . . . 1615.1Data sheet status . . . . . . . . . . . . . . . . . . . . . . 1615.2Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1615.3Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 1615.4T rademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 1616Contact information. . . . . . . . . . . . . . . . . . . . . 1617Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Please be aware that important notices concerning this document and the product(s)described herein, have been included in section ‘Legal information’.© NXP B.V.2007.All rights reserved.For more information, please visit: For sales office addresses, please send an email to: salesaddresses@Date of release: 15 November 2007。
33.74HC138芯片开短路测试[8页]
![33.74HC138芯片开短路测试[8页]](https://img.taocdn.com/s3/m/e2832f332cc58bd63086bde5.png)
74HC138芯片简介
4
74HC138真值表
Enable
Input
Output
G1 G2 C B A Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
XHX X XHHHHHHHH
L X X X XHHHHHHHH
HL L L L L HHHHHHH
HL L L HH L HHHHHH
HL L H L HH L HHHHH
芯片开路。
谢谢大家！
待测电路
Pin 2
压值范围为0.3V≤V2≤1.2V，则该芯片
I1
内部的ESD二极管工作正常，且芯片引
脚与测试设备的接触良好，若V2<0.3V，
GND
则说明芯片内部的ESD二极管出现了短
74HC138芯片对电源开短路测试原理图
路异常，若V2>1.2V，则说明芯片内部
出现开路或引脚与测试机接触不良导致
分别在PIN1~PIN8端口施加-100mA电
流（即从端口朝外引出100mA电流），
I2
测试此时端口的电压值V1，若测得的电 Pin 1
待测电路
Pin 2
压值范围为-1.2V≤V1≤-0.3V，则该芯
片内部的ESD二极管工作正常，且芯片
I1
引 脚 与 测 试 设 备 的 接 触 良 好 ， 若 V1>0.3V则说明芯片内部的ESD二极管出现 了短路异常，若V1<-1.2V ，则说明芯
GND 74HC138芯片对地开短路测试原理图
片内部出现开路或引脚与测试机接触不
良导致芯片开路。
对电源开短路测试
7
对电源开短路测试
然后进行芯片对电源开短路测试，测试
VDD
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1/12November 2004s HIGH SPEED: t PD = 5.7ns (TYP.) at V CC = 5V sLOW POWER DISSIPATION:I CC = 4 µA (MAX.) at T A =25°C sHIGH NOISE IMMUNITY:V NIH = V NIL = 28% V CC (MIN.)s POWER DOWN PROTECTION ON INPUTS sSYMMETRICAL OUTPUT IMPEDANCE:|I OH | = I OL = 8 mA (MIN)sBALANCED PROPAGATION DELAYS:t PLH ≅ t PHLsOPERATING VOLTAGE RANGE:V CC (OPR) = 2V to 5.5VsPIN AND FUNCTION COMPATIBLE WITH 74 SERIES 138sIMPROVED LATCH-UP IMMUNITYDESCRIPTIONThe 74VHC138 is an advanced high-speed CMOS 3 TO 8 LINE DECODER (INVERTING)fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS technology.If the device is enabled, 3 binary select (A, B, and C) determine which one of the outputs will go low.If enable input G1 is held low or either G2A or G2B is held high, the decoding function is inhibited and all the 8 outputs go to high.Tree enable inputs are provided to ease cascade connection and application of address decoders for memory systems.Power down protection is provided on all inputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V.All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage.74VHC1383 TO 8 LINE DECODER (INVERTING)Figure 1: Pin Connection And IEC Logic SymbolsTable 1: Order CodesPACKAGE T & R SOP 74VHC138MTR TSSOP74VHC138TTR74VHC1382/12Figure 2: Input Equivalent CircuitTable 2: Pin DescriptionTable 3: Truth TableX : Don’t careFigure 3: Logic DiagramThis logic diagram has not be used to estimate propagation delaysPIN N°SYMBOL NAME AND FUNCTION 1, 2, 3A, B, C Address Inputs 4, 5G2A, G2BEnable Inputs 6G1Enable Input 15, 14, 13, 12, 11, 10, 9,7Y0 to Y7Outputs8GND Ground (0V)16V CCPositive Supply VoltageINPUTSOUTPUTS ENABLE SELECTG2B G2A G1C B A Y0Y1Y2Y3Y4Y5Y6Y7X X L X X X H H H H H H H H X H X X X X H H H H H H H H H X X X X X H H H H H H H H L L H L L L L H H H H H H H L L H L L H H L H H H H H H L L H L H L H H L H H H H H L L H L H H H H H L H H H H L L H H L L H H H H L H H H L L H H L H H H H H H L H H L L H H H L H H H H H H L H LLHHHHHHHHHHHL74VHC1383/12Table 4: Absolute Maximum RatingsAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not impliedTable 5: Recommended Operating Conditions1) V IN from 30% to 70% of V CCSymbol ParameterValue Unit V CC Supply Voltage -0.5 to +7.0V V I DC Input Voltage -0.5 to +7.0V V O DC Output Voltage -0.5 to V CC + 0.5V I IK DC Input Diode Current - 20mA I OK DC Output Diode Current ± 20mA I O DC Output Current ± 25mA I CC or I GND DC V CC or Ground Current± 75mA T stg Storage Temperature -65 to +150°C T LLead Temperature (10 sec)300°CSymbol ParameterValue Unit V CC Supply Voltage 2 to 5.5V V I Input Voltage 0 to 5.5V V O Output Voltage 0 to V CC V T op Operating Temperature-55 to 125°C dt/dvInput Rise and Fall Time (note 1) (V CC = 3.3 ± 0.3V) (V CC = 5.0 ± 0.5V)0 to 1000 to 20ns/V74VHC1384/12Table 6: DC SpecificationsTable 7: AC Electrical Characteristics (Input t r = t f = 3ns)(*) Voltage range is 3.3V ± 0.3V (**) Voltage range is 5.0V ± 0.5VSymbolParameterTest ConditionValue UnitV CC (V)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.V IHHigh Level Input Voltage2.0 1.5 1.5 1.5V3.0 to 5.50.7V CC0.7V CC0.7V CCV ILLow Level Input Voltage2.00.50.50.5V3.0 to 5.50.3V CC0.3V CC0.3V CCV OHHigh Level Output Voltage2.0I O =-50 µA 1.9 2.0 1.9 1.9V3.0I O =-50 µA 2.9 3.0 2.9 2.94.5I O =-50 µA 4.4 4.54.4 4.43.0I O =-4 mA 2.58 2.48 2.44.5I O =-8 mA 3.943.83.7V OLLow Level Output Voltage2.0I O =50 µA 0.00.10.10.1V3.0I O =50 µA 0.00.10.10.14.5I O =50 µA 0.00.10.10.13.0I O =4 mA 0.360.440.554.5I O =8 mA 0.360.440.55I I Input Leakage Current0 to 5.5V I = 5.5V or GND ± 0.1± 1± 1µA I CCQuiescent Supply Current5.5V I = V CC or GND44040µA SymbolParameterTest ConditionValue UnitV CC (V)C L (pF)T A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.t PLH t PHLPropagation Delay Time A, B, C, to Y3.3(*)158.211.4 1.013.0 1.013.0ns 3.3(*)5010.015.8 1.018.0 1.018.05.0(**)15 5.78.1 1.09.5 1.09.55.0(**)507.210.1 1.011.5 1.011.5t PLH t PHLPropagation Delay TimeG to Y3.3(*)158.112.8 1.015.0 1.015.0ns 3.3(*)5010.616.3 1.018.5 1.018.55.0(**)15 5.68.1 1.09.5 1.09.55.0(**)507.110.1 1.011.5 1.011.5t PLH t PHLPropagation Delay TimeG2A, G2B to Y3.3(*)158.211.4 1.013.5 1.013.5ns 3.3(*)5010.714.9 1.017.0 1.017.05.0(**)15 5.88.1 1.09.5 1.09.55.0(**)507.310.11.011.51.011.574VHC1385/12Table 8: Capacitive Characteristics1) C PD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I CC(opr) = C PD x V CC x f IN + I CCFigure 4: Test CircuitC L =15/50pF or equivalent (includes jig and probe capacitance)R T = Z OUT of pulse generator (typically 50Ω)Figure 5: Waveform - Propagation Delays For Inverting Outputs (f=1MHz; 50% duty cycle)SymbolParameterTest ConditionValue UnitT A = 25°C -40 to 85°C -55 to 125°C Min.Typ.Max.Min.Max.Min.Max.C IN Input Capacitance 6101010pF C PDPower Dissipation Capacitance (note 1)34pF74VHC138Figure 6: Waveform - Propagation Delays For Non-inverting Outputs (f=1MHz; 50% duty cycle)6/1274VHC1387/12DIM.mm.inch MIN.TYPMAX.MIN.TYP.MAX.A 1.750.068a10.10.250.0040.010a2 1.640.063b 0.350.460.0130.018b10.190.250.0070.010C 0.50.019c145° (typ.)D 9.8100.3850.393E 5.86.20.2280.244e 1.270.050e38.890.350F 3.8 4.00.1490.157G 4.6 5.30.1810.208L 0.5 1.270.0190.050M 0.620.024S8° (max.)SO-16 MECHANICAL DATA0016020D74VHC1388/12DIM.mm.inchMIN.TYPMAX.MIN.TYP.MAX.A 1.20.047A10.050.150.0020.0040.006A20.81 1.050.0310.0390.041b 0.190.300.0070.012c 0.090.200.0040.0079D 4.95 5.10.1930.1970.201E 6.2 6.4 6.60.2440.2520.260E1 4.34.4 4.480.1690.1730.176e 0.65 BSC0.0256 BSCK 0˚8˚0˚8˚L0.450.600.750.0180.0240.030TSSOP16 MECHANICAL DATAcEbA2A E1D1PIN 1 IDENTIFICATIONA1LKe0080338D74VHC138 Tape & Reel SO-16 MECHANICAL DATAmm.inchDIM.MIN.TYP MAX.MIN.TYP.MAX.A33012.992C12.813.20.5040.519D20.20.795N60 2.362T22.40.882Ao 6.45 6.650.2540.262Bo10.310.50.4060.414Ko 2.1 2.30.0820.090Po 3.9 4.10.1530.161P7.98.10.3110.3199/1274VHC138Tape & Reel TSSOP16 MECHANICAL DATAmm.inch DIM.MIN.TYP MAX.MIN.TYP.MAX.A33012.992 C12.813.20.5040.519 D20.20.795N60 2.362T22.40.882 Ao 6.7 6.90.2640.272 Bo 5.3 5.50.2090.217 Ko 1.6 1.80.0630.071 Po 3.9 4.10.1530.161 P7.98.10.3110.31910/1274VHC138 Table 9: Revision HistoryDate Revision Description of Changes 12-Nov-20044Order Codes Revision - pag. 1.11/1274VHC138Information furnished is believed to be accurate and reliable. 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