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74系列芯片简介——功能与描述

74系列芯片简介——功能与描述

7400、74H00、74L00、74LS00、74S00、74HC00、74C00、74F00、74ALS00四2输入与非门Y=\AB。

7401、74LS01、74HC01、74ALS01四2输入与非门(OC)Y=\AB。

7402、74L02、74LS02、74S02、74HC02、74C02、74ALS02、74F02四2输入或非门。

Y=/A+B。

7403、74L03、74LS03、74ALS03、74S03、74HC037404、74H04、74L04、74S04、74HC04、74C04、74F04、74ALS04六反相器Y=/A。

7405、74H05、74LS05、74S05、74HC05、74F05、74ALS05六反相器(OC)Y=/A。

7406、74LS06六反相缓冲器/驱动器(OC、高压输出)Y=/A;是7405高耐压输出型,耐压30V。

7407、74LS07、74HC07六缓冲器/驱动器(OC、高压输出)Y=A; 30V耐高压输出。

7408、74LS08、74F08、74ALS08、74S08、74HC08、74C08四2输入与门Y=AB。

7409、74LS09、74F09、74ALS09、74S09、74HC09四2输入与门(OC)Y=AB。

7410、74H10、74L10、74LS10、74ALS10、74S10、74HC10、74C1074H11、74LS11、74S11、74F11、74ALS11、74HC11三3输入与门Y=ABC。

7412、74LS12、74ALS12三3输入与非门(OC)Y=\ABC。

7413、74LS13双4输入与非门Y=\ABCD。

7414、74LS14、74HC14、74C1474H15、74LS15、74ALS15、74S15三3输入与门(OC)Y=ABC。

7416、74LS16六反相缓冲器/驱动器Y=/A;7417、74LS17六缓冲器/驱动器(OC、高压输出)Y=A;15V耐压输出。

DM6437评估板技术手册

DM6437评估板技术手册

DM6437评估板技术手册一、DM6437 EVM概述1.1 dm6437关键特性> 时钟频率达600MHz> 1个TVP5146M2视频解码器(TI提供),支持复合或S视频端子(TVP5146M2: 是一个单芯片数字视频解码器,将所有流行带宽模拟格式视频转化为数字视频分量。

它支持RGB和YPbPr输入信号分量的模数转换,并支持NTSC,PAL和SECAM复合和S-video等输入信号的模数转换并解码成YCbCr分量)> 4个视频DACV输出---支持分量输出,RGB输出,复合输出> 128M DDR2 DRAM> 提供16M non-volatile flash memory, 64M NAND flash, 2M SRAM (volatile: 易丢失的)> 提供UART, CAN(控制器局域网络,一种总线协议) I/O接口> AIC33 立体音频编码器> 10/100 MBS以太网接口> 可配置的boot load 选项> 嵌入式的JTAG 仿真器接口> 4个用户LEDs及4个用户切换点> 提供子板扩展插槽> VL YNQ接口(VLINQ是由Ti公司研制的一种宽带接口,可使用在WLAN、modems, VOIP处理器以及音频视频媒体处理器上。

是一种全双工串行通信接口,将外部扩展物理设备连接到内部总线中。

当这些外部设备连接到内部总线时,就会被映射到内部物理地址空间。

多个VL YNQ 设备会形成一个菊链,设备间采用点对点或主从模式通信。

通过VL YNQ的数据采用8B/10B 编码分包。

VLYNQ总线包括1个时钟信号(CLK)和8个发送线以及8个接受线。

所有VL YNQ 信号只能同时由一个设备控制。

一个设备的发射脚同下一个设备的接收脚相连。

VL YNQ总线的理论最高速率可达125 MHz,而实际数度取决于连接在VL YNQ总线上的物理设备。

74系列各个芯片详细介绍

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。

芯片类型

芯片类型

或门 或非门 与或非门 LS02 LS32 LS51 LS64 LS65
异或门 比较器 LS86
Hale Waihona Puke 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) 74LS06
Y = A ) │
│ 1 2 3 4 5 6 7│
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 74LS138
Vcc -Y0 -Y1 -Y2 -Y3 -Y4 -Y5
│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
74系列芯片资料 (还算可以)!
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
) │ Y = ABCD+EF+GHI+JK
│ 1 2 3 4 5 6 7│

SN74ALS646A-1DWRG4,SN74ALS646ADWRG4,SN74ALS646A-1DW,SN74ALS646A-1DWE4, 规格书,Datasheet 资料

SN74ALS646A-1DWRG4,SN74ALS646ADWRG4,SN74ALS646A-1DW,SN74ALS646A-1DWE4, 规格书,Datasheet 资料

Addendum-Page 1PACKAGING INFORMATIONOrderable Device Status(1)Package Type PackageDrawingPins Package QtyEco Plan(2)Lead/Ball Finish MSL Peak Temp (3)Samples (Requires Login)5962-87595013A ACTIVE LCCC FK 281TBD Call TI Call TI 5962-8759501KA ACTIVE CFP W 241TBD Call TI Call TI 5962-8759501LA ACTIVE CDIP JT 241TBD Call TI Call TI 5962-89956013A ACTIVE LCCC FK 281TBD Call TI Call TI 5962-8995601LA ACTIVE CDIP JT 241TBD Call TI Call TI 5962-9052301LA ACTIVE CDIP JT 241TBD Call TI Call TISN54AS646JT ACTIVE CDIP JT 241TBDA42N / A for Pkg TypeSN74ALS646A-1DW ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646A-1DWE4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646A-1DWG4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646A-1DWR ACTIVE SOIC DW 24Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646A-1DWRE4ACTIVE SOIC DW 24Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646A-1DWRG4ACTIVE SOIC DW 24Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646A-1NT ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74ALS646A-1NTE4ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74ALS646ADW ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646ADWE4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646ADWG4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646ADWR ACTIVE SOIC DW 242000Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646ADWRE4ACTIVE SOIC DW 242000Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS646ADWRG4ACTIVESOICDW242000Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM芯天下--/Addendum-Page 2Orderable Device Status(1)Package Type PackageDrawingPins Package QtyEco Plan(2)Lead/Ball FinishMSL Peak Temp(3)Samples (Requires Login)SN74ALS646ANT ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74ALS646ANTE4ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74ALS648ADW ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS648ADWE4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS648ADWG4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74ALS648ANT ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74ALS648ANTE4ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74AS646DW ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AS646DWE4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AS646DWG4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AS646NT ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74AS646NTE4ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74AS648DW ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AS648DWE4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AS648DWG4ACTIVE SOIC DW 2425Green (RoHS & no Sb/Br)CU NIPDAU Level-1-260C-UNLIM SN74AS648NT ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SN74AS648NT3OBSOLETE PDIP NT 24TBD Call TICall TISN74AS648NTE4ACTIVE PDIP NT 2415Pb-Free (RoHS)CU NIPDAU N / A for Pkg Type SNJ54ALS646FK ACTIVE LCCC FK 281TBD POST-PLATE N / A for Pkg TypeSNJ54ALS646JT ACTIVE CDIP JT 241TBD A42N / A for Pkg Type SNJ54ALS646W OBSOLETE CFP W 24TBD Call TI Call TI SNJ54ALS648FK OBSOLETE LCCC FK 24TBDCall TI Call TISNJ54ALS648JT ACTIVE CDIP JT 241TBD A42N / A for Pkg Type SNJ54ALS648WOBSOLETECFPW24TBDCall TICall TI芯天下--/Addendum-Page 3Orderable Device Status(1)Package Type PackageDrawingPins Package QtyEco Plan(2)Lead/Ball FinishMSL Peak Temp(3)Samples (Requires Login)SNJ54AS646FK ACTIVE LCCC FK 281TBD POST-PLATE N / A for Pkg TypeSNJ54AS646JT ACTIVE CDIP JT 241TBD A42N / A for Pkg Type SNJ54AS646WACTIVECFPW241TBDA42N / A for Pkg Type(1)The marketing status values are defined as follows:ACTIVE: Product device recommended for new designs.LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.PREVIEW: Device has been announced but is not in production. Samples may or may not be available.OBSOLETE: TI has discontinued the production of the device.(2)Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check /productcontent for the latest availability information and additional product content details.TBD: The Pb-Free/Green conversion plan has not been defined.Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)(3)MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. 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UDA1341TS中文资料

UDA1341TS中文资料

UDA1341TS学习wince音频驱动开发 2009-04-02 14:02:58 阅读48 评论0 字号:大中小7. 功能描述(FUNCTIONAL DESCRIPTION)7.1 系统时钟(System clock)UDA1341TS 只能使用从片模式,这就意味着在所有应用中系统设备必须给它提供系统时钟.系统时钟频率是可选择的,可为了256fs,384fs或512fs.系统时钟必须对数字接口信号锁定频率(The system clock must be locked in frequency to the digital interface signals)7.2 针脚兼容性(Pin compatibility)UDA1341TS部分针脚与UDA1340M和UDA1344TS兼容,印刷电路板从UDA1340M升级到UDA1341TS比较简单.与UDA1340M兼容的针脚在FIG.3中标明.7.3 模拟前端(Analog front end)UDA1341TS的模拟前端由两个立体声模数转换器组成,每个转换器有两个通道,通道2有一个可编程增益放大器(PGA),PGA被用来预放大输入通道2的麦克风信号.输入通道1有一个可选择的0或6dB的增益级,通过L3-接口来控制.在这种方式下,1V或2V(有效值)的输入信号(如从一个CD源中输出)可以在输入通道1上串联一个12千欧的外部电阻来支持.下表给出了它的应用模式.使用输入增益级的应用模式--------------------------------------------------------------------------------------------------------电阻(12千欧) 输入增益开关最大输入电压使用0 dB 2V(有效值)输入信号 ps:如果这里没有必要支持2V输入信号,外接电阻就不应被使用使用6 dB 1V(有效值)输入信号不使用 0 dB 1V(有效值)输入信号不使用 6 dB 0.5V(有效值)输入信号---------------------------------------------------------------------------------------------------------7.4 可编程增益放大器(Programmable Gain Amplifier(PGA))PGA可以通过L3接口设置为-3,0,3,9,15,21或27dB7.5 模数转换器(Analog-to-Digital Converter(ADC))UDA1341TS的立体声模数转换器由两个三阶增量调制器组成.它们有一个改进的里齐码结构使用不同的开关电容.过取样率为128.7.6 数字自动增益控制(Digital Automatic Gain Control(AGC))当有一个麦克风信号输入到通道2时,输入通道2有一个数字自动增益控制来压缩动态范围.数字AGC可以用L3接口打开.在打开的状态下压缩动态范围.通过L3接口用户可以设置AGC的参数:启动时间,衰减时间和输出电平.当AGC设置为关时,输入通道2的增益可以手工设置.在这种情况下PGA和AGC组合在一起.输入通道2的范围从-3到60.5dB以0.5dB步进.7.7 自动增益控制状态检测(AGC status detection)当自动增益控制的增益级低于8dB时,数字自动增益中的自动增益状态信号变为高,这个信号可以被用来通过L3接口给PGA一个新的增益设置,或者驱动一个LED.7.8 数字混音器(digital Mixer)两个立体声模数转换器(包括AGC)有四种模式:*只使用ADC1(用做线路输入);输入通道2关闭*只使用ADC2,包括PGA和数字AGC(用做麦克风输入);输入通道1关闭*ADC1+ADC2混合模式,包括PGA和AGC*ADC1+ADC2 double differential 模式(提升ADC性能)要点:为了防止线路输入间串扰,在double differential模式下不应该有信号应用到麦克风输入.在所有模式下(除了double differential模式)一个参考电压一直在ADC的输入上有效,而在double differential模式下却没有.在混合模式下,通道1和通道2的ADC的输出信号可以经L3接口通过一定系数混合.混合系数的范围从0到负无穷dB以1.5dB步进.7.9 抽取滤波器(Decimation filter(ADC))从128fs开始的抽取可以分两阶段进行.第一个阶段实现3阶sin x/x 特性. (The first stage realizes 3rd order sinx/x characteristic), 以16为基抽取.第二个步骤由3个半带滤波器组成,每一个以2为因子抽取.抽取滤波器特性--------------------------------------------------------------------------------项(ITEM) 条件(CONDITIONS) 值(V ALUE(db))通频带波纹0到0.45fs ±0.05抑制频带 >0.55fs -60动态范围0到0.45fs 108总增益输入通道1;0 dB输入 -1.16--------------------------------------------------------------------------------7.10 过载检测(Overload detection(ADC))过载检测这个名字虽合适但有一点不正确.实际上,它的输出表明输出数据比最大可能的数字变化大-1dB(实际上是-1.16dB).无论何时,在何声道.在这种条件下OVERFL输出被强制为高电平持续至少512fs时钟周期(当fs=44.1 kHZ时为11.6ms).每次过载后超时被复位.7.11 静音(Mute(ADC))在从掉电模式后恢复或打开系统时钟时,引脚DATAO的串行数据输出保持低电平直到从抽取滤波器来的有效数据可用.这个时间取决于是否选择了直流消除滤镜.*直流消除关闭 t=1021/fs; 当fs=44.1kHZ时t=23.2ms*直流消除开启 t=12288/fs;当fs=44.1kHZ时t=279ms7.12 内插滤波器(Interpolation filter(DAC))数字滤波器插值从1fs到128fs用一个级联的递归滤波器和一个有限推进响应滤镜.插值滤镜特性-------------------------------------------------项条件值(dB)通带波纹0到0.45fs ±0.03抑制频带 >0.55fs -50动态范围0到0.45fs 108------------------------------------------------7.13峰值检波器(Peak detector)在再现时,内置了峰值检波器.峰值检测位置可以在声音特征设置之前或之后通过L3-接口来设置.峰值检波器实现成像是一个峰值保持检波器,这就表明最高的音级被保存直到被L3-接口读出.在读出后峰值电平寄存器被复位.7.14 快速静音(Quick mute)一个硬件静音可能通过固定的QMUTE引脚激活.当QMUTE设置为高电平时,输出信号被减弱为0.设置QMUTE为低电平时, 快速静音无效.7.15 噪音整形器(Noise shaper(DAC))三阶噪音整形器运行频率为128fs.它将频带内的量化噪声转换成音频带之上的频率.这种噪音整形技术可以提供高信噪比.噪音整形器输出通过一个DAC流滤波器转换成模拟信号. 7.16 DAC流滤波器(Filter Stream Digital-to-Analog Converter(FSDAC))DAC滤波器是一个半数字重构滤镜,可将噪音整形器的一位数据流转换成模拟电压输出.滤镜系数采取当前源并且合计在运算放大器的虚拟地上.这种方法可以达到很高的信噪比和低时钟抖动敏感.因为DAC的内置滤波功能,所以不需要一个后置滤波器.板上放大器将DAC流滤波器的当前输出转换成一个能驱动线路输入的输出电压信号.7.17 多格式输入/输出接口(Multiple format input/output interface)UDA1341TS 支持下列数据格式:*IIS总线,字长可以达到20bits*最高有效位有效的串行格式,字长可达20位.*最低有效位有效的串行格式,字长为16,18或20位*最高有效位有效的输出和最低有效位有效的16,18,20位输入.左声道和右声道字长是时间多工化的.格式如图FIG4所示UDA1341TS允许双倍速数据检测.在这种情况下,重低音,高音和去加重特性不能被使用.然而,音量控制和软静音仍可控.双倍速检测可以通过L3接口设置.位时钟频率必须小于等于64倍字选频率.7.18 L3接口(L3-interface)信息按照L3格式通过微控制器总线进行传输,在这种格式下有两种不同的操作模式,地址模式和传输模式.地址模式需要通过L3总线选择一个设备并且为数据传输模式定义目的寄存器.数据传输可以有两个方向:输入到UDA1341TS中以编码它的声音处理和系统控制特性,或从UDA1341TS中输出来提供峰值.7.19地址模式地址模式用来选择一个设备为了之后的数据传输,并且定义目的寄存器,地址模式被描述为L3MODE保持低电平并且经过8个L3CLOCK脉冲.伴随着8个数据位.基本时序如图FIG.5所示.(L3CLOCK为低电平时进行同步)数据位7到2表示了一个六位的设备地址,第7位为最高有效位,第2位为最低有效位.UDA1341TS的地址是000101.数据位0到1表示之后传输的数据类型(表4).如果UDA1341TS接收了一个不同的地址命令,它会取消所作的选择BIT1 BIT0 MODE TRANSFER0 0 DATA0 直接编址寄存器:音量,重低音,高音,峰值检测位置,去加重,静音和模式扩展编址寄存器:数字混音器控制,自动增益控制,麦克灵敏度控制,输入增益,自动增益时间常数及输出等级0 1 DATA1 读出峰值(从UDA1341TS读到微控制器)1 0 STATUS 复位,系统时钟频率,数据输入格式,直流滤波器,输入增益开关,输出增益开关极性控制,双倍速和电源控制1 1 未使用7.20 数据传输模式在址址模式下激活的选择仍然有效,直到UDA1341TS接收到一个新的地址指令.数据传输的基本时序本质上与地址模式相同,在FIG6中给出 (L3MODE保持高电平,L3CLOCK高电平同步),注意"L3DATA写"指出数据传输从微控制器到UDA1341TS并且"L3DATA峰值读" 指出数据以相反的方向传输.最大的输入时钟和数据传输速率为64fs.所有的传输都是基于8位字节,数据在接收到一个字节的第八位后存储到UDA1341TS中.多字节传输可参照Fig.77.21 编码音频处理及其它特性音频处理和其它特性值存储在独立的寄存器中,通过选择传输的数据类型来对寄存器进行第一道选取,这通过地址模式中的第0位和第1位来完成,第二道选取由数据字节的2或3个最高有效位(第7-6位或7-5位)完成.数据字节中的其它位(BIT5-0,BIT4-0)表示要被存放到已选寄存器的值.对于UDA1341TS 来说可以选取以下模式.*STATUS在这种模式下,复位,系统时钟频率,数据输入格式,直流滤波器,输入增益开关,输出增益开关,极性控制,双倍速和电源控制等特性可以被设置.*DATA0在这种模式下有两种地址模式:直接编址模式和扩展编址模式.直接编址模式使用数据字节的两个最高有效位.在这种地址模式下,音量,重底音,高音,峰值位置, 去加重,静音,模式等特性可以被直接控制.扩展编址模式被用来控制数字混音器,自动增益控制,麦克灵敏度,输入增益,自动增益控制时间系数,自动增益控制输出等级等特性,一个扩展地址可以通过EA寄存器(3位)来设置,扩展寄存器中的值可以通过写数据到ED寄存器(5位)来设置.*DATA1在这种模式下,检测到的峰值可以被读出.Table 5 默认设置符号(SYMBOL) 特性(FEATURE) 设置或值(SETTING OR V ALUE)******Status******OGS 输出增益开关(Output gain switch) 0 dBIGS 输入增益开关(Input gain switch) 0 dBPAD 模数转换极性(Polarity of ADC) 不反转(non-inverting)PDA 数模转换极性(Polarity of DAC) 不反转(non-inverting)DS 双倍速(Double speed) 单倍速(single speed)PC 电源控制(Power control ADC and DAC) 开启(on)******直接控制(Direct control)*******VC 音量控制(V olume control) 0 dBBB 重低音(Bass boost) 0 dBTR 高音(Treble) 0 dBPP 峰值检测位置(Peak detection position) 在音调特性之后(after the tone features)DE 去加重(De-emphasis) 无去加重(no de-emphasis)MT 静音(Mute) 不静音(no mute)M 模式开关(Mode switch) 平坦(flat)******扩展地址编码(Extended programming)******MA 混音器增益通道1(Mixer gain channel 1) -6 dBMB 混音器增益通道2(Mixer gain channel 2) -6 dBMS 麦克敏感度(MIC sensitivity) 0 dBMM 混音器模式开关双微分模式?(double differential mode)AG 自动增益控制(AGC control) 关闭自动增益(disable AGC)AT 自动增益控制启动及衰减时间(AGC attack and decay time) 11ms 和100msAL 自动增益控制输出等级(AGC output level) -9 dB FS7.21.1 STATUS 控制'STATUS'类型数据传输BIT 7 | BIT 6 | BIT 5 | BIT 4 | BIT 3 | BIT 2 | BIT 1 | BIT 0 | 寄存器选择(REGISTERSELECTED)------------------------------------------------------------------------------------------------------ 0 RST SC1 SC0 IF2 IF1 IF0 DC RST= 复位(reset)SC=系统时钟频率(system clock frequency(2位))IF=数据输入格式(data input format(3位)) DC=直流滤波器(DC-filter)------------------------------------------------------------------------------------------------------- 1 OGS IGS PAD PDA DS PC1 PC0 OGS=输出增益(6dB)开关(output gain switch) IGS=输入增益(6dB)开关(input gain switch)PAD=ADC极性(polarity of ADC)PDA=DAC极性(polarity of DAC)DS=双倍速(double speed)PC=电源控制(power control)(2位)-------------------------------------------------------------------------------------------------------- 7.21.1.1 复位(Reset)1位值,使用默认设置(系统时钟频率除外)初始化L3寄存器.0: 不复位 1: 复位7.21.1.2 系统时钟频率(System clock frequency)两位值,用来选择外部时钟频率.-----------------------------------------SC1 | SC0 | FUNCTION0 0 512fs0 1 384fs1 0 256fs1 1 未使用------------------------------------------7.21.1.3 直流滤波器(DC-filter)一位值用来使能数字直流滤波器0: 不使用 1:使用7.21.1.4 数据输入格式(Data input format)3位值用来选择数据输入格式-------------------------------------------------------------------------------------IF2 IF1 IF0 FUNCTION0 0 0 IIS总线(IIS-BUS)0 0 1 最低有效位对齐的16位(LSB-justified 16 bits)0 1 0 最低有效位对齐的18位(LSB-justified 18 bits)0 1 1 最低有效位对齐的20位(LSB-justified 20 bits)1 0 0 最高有效位对齐(MSB-justified)1 0 1 最低有效位对齐的16位输入和最高有效位对齐的输出(LSB-justified 16 bits input and MSB-justified output)1 1 0 最低有效位对齐的18位输入和最高有效位对齐的输出(LSB-justified 18 bits input and MSB-justified output)1 1 1 最低有效位对齐的20位输入和最高有效位对齐的输出(LSB-justified 20 bits input and MSB-justified output)---------------------------------------------------------------------------------------7.21.1.5 输出增益开关(Output gain switch)一位值用来控制数模转换器输出增益开关0: 0 dB 1: 6 dB7.21.1.6 输入增益开关(Input gain switch)一位值用来控制模数转换器开关0: 0 dB 1: 6 dB7.21.1.7 模数转换器极性(Polarity of ADC)一位值用来控制模数转换器极性.0: 不反转 1: 反转7.21.1.8 数模转换器极性(Polarrity of DAC)一位值用来控制数模转换器极性.0: 不反转 1: 反转7.21.1.9 双倍速(Double speed)一位值用来使能双倍速再现(playback)0: 单倍速 1: 双倍速7.21.1.10 电源控制(Power control)两位值用来禁用数模转换器和/或模数转换器节电模式.--------------------------------------FUNCTIONPC1 PC0ADC DAC--------------------------------------0 0 off off0 1 off on1 0 on off1 1 on on--------------------------------------7.21.2 DATA0 直接控制DATA0类型数据传输( Data transfer of type ‘DATA0’)------------------------------------------------------------------BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 REGISTER SELECTED0 0 VC5 VC4 VC3 VC2 VC1 VC0 VC = 音量控制(volume control (6 bits))0 1 BB3 BB2 BB1 BB0 TR1 TR0 BB = 低音增强(bass boost (4 bits))TR = 高音(treble (2 bits))1 0 PP DE1 DE0 MT M1 M0 PP = 峰值检测位置(peak detection position)DE = 去加重(de-emphasis (2 bits))MT = 静音(mute)M = 模式选择(mode switch (2 bits))1 1 0 0 0 EA2 EA1 EA0 EA=扩展地址(extended address (3 bits))1 1 1 ED4 ED3 ED2 ED1 ED0 ED = 扩展数据(extended data (5 bits))7.21.3 DATA0扩展编程寄存器(DATA0 EXTENDED PROGRAMMING REGISTERS) 扩展控制寄存器(Extended control registers)EA2 EA1 EA0 ED4 ED3 ED2 ED1 ED0 REGISTER SELECTED0 0 0 MA4 MA3 MA2 MA1 MA0 MA=混音器增益通道1(mixer gain channel 1 (5 bits)) 0 0 1 MB4 MB3 MB2 MB1 MB0 MB=混音器增益通道2(mixer gain channel 2 (5 bits)) 0 1 0 MS2 MS1 MS0 MM1 MM0 MS=麦克风敏感度(MIC sensitivity (3 bits))MM=混音器模式(mixer mode (2 bits))1 0 0 AG 0 0 IG1 IG0 AG=自动增益控制(AGC control)IG=输入放大器增益通道2(input amplifier gain channel 2 (2 bits))1 0 1 IG6 IG5 IG4 IG3 IG2 IG=输入放大器增益通道2(input amplifier gain channel 2 (5 bits))1 1 0 AT2 AT1 AT0 AL1 AL0 AT=自动增益控制时间常数(AGC time constant (3 bits))AL=自动增益控制输出电平(AGC output level (2 bits))7.21.4 DATA1 控制(DATA1 CONTROL)'DATA1'数据传输类型BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0 读出数据(READ-OUT DATA)PL5 PL4 PL3 PL2 PL1 PL0 峰值电平(peak level value(6 bits))。

74系列常用芯片及功能

74系列常用芯片及功能

74系列常用芯片及功能74系列常用芯片及功能注: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。

三端稳压器型号大全

三端稳压器型号大全

三端稳压、基准源、低压差7805 5V 1A TO-220 7806 6V 1A TO-220 7808 8V 1A TO-220 7809 9V 1A TO-220 7810 10V 1A TO-220 7812 12V 1A TO-220 7815 15V 1A TO-220 7818 18V 1A TO-220 7820 20V 1A TO-220 7824 24V 1A TO-220 7905 ~5V 1A TO-220 7906 ~6V 1A TO-220 7908 ~8V 1A TO-220 7909 ~9V 1A TO-220 7910 ~10V 1A TO-220 7912 ~12V 1A TO-220 7915 ~15V 1A TO-220 7918 ~18V 1A TO-220 7920 ~20V 1A TO-220 7924 ~24V 1A TO-220 78L05 5V 0.1A TO-92 78L06 5V 0.1A TO-92 78L07 7V 0.1A TO-92 78L08 8V 0.1A TO-92 78L09 9V 0.1A TO-92 78L10 10V 0.1A TO-92 78L12 12V 0.1A TO-92 78L15 15V 0.1A TO-92 78L18 18V 0.1A TO-92 78L20 20V 0.1A TO-92 78L24 24V 0.1A TO-92 79L05 ~5V 0.1A TO-92 79L06 ~6V 0.1A TO-92 79L07 ~7V 0.1A TO-92 79L08 ~8V 0.1A TO-92 79L09 ~9V 0.1A TO-9279L10 ~10V 0.1A TO-92 79L12 ~12V 0.1A TO-92 79L15 ~15V 0.1A TO-92 79L18 ~18V 0.1A TO-92 79L20 ~20V 0.1A TO-92 79L24 ~24V 0.1A TO-92 78L05H 金封TO-5 78T05 5V 3A TO-220 78M12 12V 0.5A TO-220 79M12 ~12V 0.5A TO-220 78N04 4V 0.3A TO-126 78N05 5V 0.3A TO-126 78N08 8V 0.3A TO-126 78N09 9V 0.3A TO-126 78N12 12V 0.3A TO-126 78N15 15V 0.3A TO-126 79N06 ~6V 0.3A TO-126 79N09 ~9V 0.3A TO-126 AN6610 20V 1.2A TO-126 T7815BT 15V 1.5A TO-220 LM138K 12.V~32V 5A ±% TO-3 LM217LZ 1.2V~37V 0.1A TO-92 LM217M 1.2V~37V 0.5A TO-252 LM285Z-1.2 1.2V 10UA-20MA ±% TO-92 LM285Z-2.5 2.5V 10UA-21MA ±% TO-92 LM309K 5V 1A TO-3 LM317LZ 1.2V~37V 0.1A TO-92 LM317M 1.2V~37V 0.5A TO-252 LM317H 1.2V~37V 0.5A TO-5 LM317T 1.2V~37V 1.5A TO-220 LM317K 1.2V~37V 1.5A TO-3 LM323K 5V 3A TO-3 LM337LZ ~1.2V至~37V 0.1A TO-92 LM337T ~1.2V至~37V 1.5A TO-220 LM337K ~1.2V至~37V 1.5A TO-3 LM338T 1.2V~32V 5A TO-220 LM338K 1.2V~32V 5A TO-3LM350T 1.2V~33V 3A TO-220 LM350K 1.2V~33V 3A TO-3 LM320K-12 ~12V 1.5A TO-3 LM320K-15 ~15V 1.5A TO-3 LM340K-5 5V 1.5A TO-3 LM340K-15 15V 1.5A TO-3 LM396K 1.25V~15V 10A TO-3 LM34DZ TO-92 LM35DZ TO-92 LM334Z TO-92 LM335Z TO-92 W7909金封~9V 1.5A TO-3 LM129AH 6.9V 600UA-15MA10PPM TO-46 CA3420T 八脚TO-5 LM236AH-5.0 5.0V ±2% TO-46 LM236H-5.0 5.0V ±4% TO-46 LM385-1.2 1.2V 15UA-20MA ±% TO-92 LM385-2.5 2.5V 15UA-20MA ±% TO-92 LM336-2.5 2.5V 400UA-10MA TO-92 LM336-5 5V 400UA-10MA TO-92 LM1086CT-3.3 3.3V 1.5A TO-220 LM2435T 五脚TO-220 LM2439T 五脚TO-220 LM2930Z-5 5V 0.15A TO-92 LM2931-3.3 3.3V 0.1A TO-92 LM2931AZ-5 5V 0.1A TO-92 LM2931AT-5 5V 0.1A TO-220 LM2931CT 3V~24V 0.1A TO-220 LM2936Z-5 5V 50MA TO-92 LM2937ET-5 5V 0.5A TO-220 LM2940CT-5 5V 1A TO-220 LM2940T-5 5V 1A TO-220 LM2940T-8 8V 1A TO-220 LM2940T-9 9V 1A TO-220 LM2940CT-12 12V 1A TO-220 LM2940T-12 12V 1A TO-220 LM2940CT-15 15V 1A TO-220LM2940T-10 10V 1A TO-220 LM2940S-5 5V 1A 贴片TO-263 LM2940CS-12 12V 1A 贴片TO-263 LM2941CS ADJ 1A 贴片TO-263 LM2941CT ADJ 1A 五脚TO-220 LM2990T-5 5V 1A TO-220 LM2575T-5 5V 1A TO-220 LM2575HVT-5 5V 1A TO-220 LM2575T-12 12V 1A TO-220 LM2575T-15 15V 1A TO-220 LM2575T-ADJ 1.23V-37V 1A TO-220 LM2576T-5 5V 3A TO-220 LM2576T-12 12V 3A TO-220 LM2576T-ADJ 1.23V-37V 3A TO-220 LM2576HVT-5.0 1.23V-57V 3A TO-220 LM2576HVT-ADJ 1.23V-57V 3A TO-220 LM2575HVS-ADJ 1.23V-57V 1A 贴片TO-263 LM3999Z 6.95V 5PPM TO-92 LM431ACZ 2.5V-36V 0.15A TO-92 LM431AIZ 2.5V-36V 0.15A TO-92 TL431 2.5V-36V 0.1A TO-92 TL431I 2.5V-36V 0.1A TO-92 TA76431S 2.5V-36V 0.15A TO-92L LP2950-3.3 3.3V 0.1A TO-92 LP2950CZ-5 5V 0.1A TO-92 LT1009CZ 2.5V TO-92 LT1033CT ~1.2V至-32V 3A TO-220 LT1584CT ADJ 7A TO-220 UPC574J 31V-35V 10MA TO-92 KA33V 31V-35V 10MA TO-92 KA336-2.5 2.5V 电压基准源TO-92 KA336-5.0 5V 电压基准源TO-92 KA7545Z 4.5V 电压基准源TO-92 MC34064P-5 5V 电压基准源TO-92 IL8069 2.5V 电压基准源TO-92 S3052V 5V 3A TO-3P S8054 TO-92S3122V 12V 3A TO-3P AS273TL9480VB TO-220 BA033ST 3.3V 五脚TO-220F 8033J 3.4V 3A 五脚TO-220。

TA7640中文资料

TA7640中文资料

UTC TA7640AP LINEAR INTEGRATED CIRCUITUTC UNISONIC TECHNOLOGIES CO., LTD.1QW-R110-007,AAM/FM IF PROCESSORDESCRIPTIONThe UTC TA7640AP Is A Monolithic Integrated Circuit Designed For The Radios Cassette Tape Recorder.FEATURES*Low Operating Current *Low External Component *Internal AM/FM Switch*Wide Operating Voltage : Vcc=3.8VBLOCK DIAGRAMUTC TA7640AP LINEAR INTEGRATED CIRCUITUTC UNISONIC TECHNOLOGIES CO., LTD.2QW-R110-007,AABSOLUTE MAXIMUM RATINGS (Ta=25°C)PARAMETERSYMBOL VALUE UNIT VoltageVCC 8V Led Driving Current ILAMP 10mA Power Dissipation PD 750mW Operating Temperature TOPR -25 ~-+75°C Storage Temperature TSTG-55~-+150°CNOTE :Ta>25°C,6mw/°CDC ELECTRICAL CHARACTERISTICS (VCC=5V)PARAMETERSYMBOLTYP UNITAMFM Pin 1 AM Mixer Input V1 1.50V Pin 2 AM Mixer Bypass V2 1.50V Pin 3 AM Local OSC V3 2.3 2.3V Pin 4 Voltage Regulator V4 2.3 2.3V Pin 5 AM IF Out V510.9V Pin 6 Level Meter Out V610.9V Pin 7 Led Driver Output V7VPin 8 GND V800V Pin 9 Dectector V9 1.4 1.5V Pin 10 VccV1055V Pin 11 FM Decter Out V1155V Pin 12 AM IF Bypass V12 1.5 1.5V Pin 13 AM IF Input V13 1.5 1.5V Pin 14 AM IFBypass V14 1.5 1.5V Pin 15 FM IF Input V15 1.5 1.5V Pin 16 AM Mixer OutputV1655VAC ELECTRICAL CHARACTERISTICS (Ta=25°C,V CC =5V,FM;f=10.7MHz, ∆f=22.5KHz, FM=400Hz AM;f=1MHz, Mod=30%,FM=400Hz)PARAMETER SYMBOL CHART TEST CONDITIONSMIN TYP MAX UNIT Supply Current ICC(1)1FM VIN=01015mAICC(2)AM VIN=0710FMInput Limiting Voltage VIN(lim)1-3dB 4046dB µDetector Output VOD 1VIN=66dB µ5785114mVrms Signal Noise Ratio S/N 1VIN=80dB µ65dB Total Harmonic Distortion THD 1VIN=80dB µ0.05%Am RejectionAMR1VIN=80dB µ38dB µUTC TA7640AP LINEAR INTEGRATED CIRCUITUTC UNISONIC TECHNOLOGIES CO., LTD.3QW-R110-007,APARAMETER SYMBOL CHART TEST CONDITIONSMIN TYP MAX UNIT Leverl Meter Driving VoltageVM1VIN=100dB µ1.61.751.9VLed Driving Sensitivity VL1IL=1mA4652dBAM GainGV 1VIN=26dB µ203060mVrms Detector Output Voltage VOD 1VIN=60dB µ6595125mVrms Signal To Noise Ratio S/N 1VIN=60dB µ47dB Total Harmonic DistortionTHD1VIN=60dB µ1%Signal Meter Output VM 1VIN=100dB µ 1.61.75 1.9V Level Meter Driving VoltageVL1IL=1mA32dB µOscillation Stop Voltage Vstop 1RDUMP=∝ 1.5V Pin 5 Output ImpedanceR09f=1KHZ3K ΩTEST CIRCUIT。

常用74系列芯片功能速查

常用74系列芯片功能速查

常用74系列芯片功能速查技术天地 2008-08-10 09:10 阅读1148 评论0字号:大中小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√ √ √。

Almel AT91SAM7S64 AT91 ARM Thumb 微处理器 说明书

Almel AT91SAM7S64 AT91 ARM Thumb 微处理器 说明书

特点Array•集成了ARM7TDMI® ARM® Thumb®处理器–高性能的32位RISC架构–高密度的16位指令集–性能/功耗(MIPS/Watt)的领先者–嵌入式ICE电路仿真,支持调试通讯•64K字节的片内高速Flash存储器,共512页,每页128字节–在最坏的条件下可以30 MHz的速度进行单时钟周期访问,预取(Prefetch)缓冲器可以实现Thumb指令的优化,使处理器以最快的速度执行指令–页编程时间为4 ms,包括页自动擦除,全片擦除时间为10 ms–10,000次的写寿命,10年数据保持能力,扇区锁定功能,Flash安全锁定位–适合量产的快速Flash编程接口•16K字节的片内高速SRAM,可以在最高时钟速度下进行单时钟周期访问操作•存储器控制器(MC)–嵌入式Flash控制器,异常中断(Abort)状态及未对齐(Misalignment)检测•复位控制器 (RSTC)–上电复位和经过工厂标定的掉电检测–提供复位源信息以及给外部电路使用的复位信号•时钟发生器(CKGR)– 低耗RC 振荡器,3 到20MHz 的片上振荡器和一个PLL•电源管理控制器(PMC)–可以通过软件进行电源优化,包括慢速时钟模式(低至500 Hz)和空闲(Idle)模式–三个可编程的外部时钟信号•先进的中断控制器(AIC)–可以单独屏蔽的、具有8个优先级的向量式中断源–两个外部中断源和一个快速中断源,可以防止虚假(spurious)中断•调试单元(DBGU)–2线UART,支持调试通讯通道中断;可通过程序来禁止通过ICE进行访问•周期性间隔定时器(PIT)–20位可编程的计数器,加上12位的间隔计数器•时间窗看门狗(WDT)–12位受预设值(key)保护的可编程计数器–为系统提供复位或中断信号–当处理器处于调试状态或空闲模式时可以停止计数器•实时定时器(RTT)–32位自由运行的具有报警功能的计数器–时钟来源于片内RC振荡器•一个并行输入/输出控制器(PIOA)–32个可编程的复用I/O,每个I/O最多可以支持两个外设功能–输入电平改变时,每个I/O都可以产生中断–可以独立编程为开漏输出、使能上拉电阻以及同步输出•11个外设数据控制器(PDC)通道•一个USB 2.0全速(12 Mbps)设备端口–片上收发器,328字节可编程的FIFO•一个同步串行控制器(SSC)–每个接收器和发送器都具有独立的时钟和帧同步信号–支持I²S,支持时分多址–支持32位数据传输的高速连续数据流功能•两个通用的同步/异步收发器(USART)–独立的波特率发生器,IrDA红外调制/解调–支持ISO7816 T0/T1智能卡,硬件握手信号,支持RS485–USART1支持全功能的调制解调器信号•主/从串行外设接口(SPI)–8到16位可编程的数据长度,4个片选线•一个3通道的16位定时器/计数器(TC)–3个外部时钟输入端,每个通道有两个多功能I/O引脚–倍速PWM发生功能,捕捉/波形模式,递增/递减计数2AT91SAM7S64 Preliminary6070A–ATARM–07-Jun-05•一个4通道的16位PWM 控制器(PWMC)•一个两线接口(TWI)–只支持主机模式,支持所有的Atmel 两线EEPROM•一个8通道的10位模数转换器,其中4个通道与数字I/O 复用•IEEE 1149.1 JTAG 边界扫描支持所有的数字引脚•5V 兼容的I/O ,包括4个高达16 mA 的大电流驱动I/O •电源–片上1.8V 电压调节器,可以为内核及外部元件提供高达100 mA 的电流–为I/O 口线提供电源的3.3V VDDIO ,以及独立的为Flash 供电的3.3V VDDFLASH –内核电源为1.8V VDDCORE ,并具有掉电检测(BoD )功能•全静态操作:极限条件下(1.65V ,85°C )高达55 MHz •封装为64脚的LQFP描述AT91SAM7S64是Atmel 32位ARM RISC 处理器小引脚数Flash 微处理器家族的一员。

HD6433397CP资料

HD6433397CP资料
ither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document. 2. Products and product specifications may be subject to change without notice. Confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However, contact Hitachi’s sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail-safes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the Hitachi product. 5. This product is not designed to be radiation resistant. 6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from Hitachi. 7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor products.

A1374资料

A1374资料
Range E Range L
Rating 16 –16
16
–0.1 3 10
–40 to 85 –40 to 150
165 –65 to 170
Units V V
V
V mA mA ºC ºC ºC ºC
Allegro MicroSystems, Inc.
2
115 Northeast Cutoff, Box 15036
Not to scale
VCC Pin 1
Continued on the next page…
Functional Block Diagram
Voltage Regulator
To all subcircuits
Dynamic Offset Cancellation Filter
A1373-DS, Rev. 8
Part Number
Pb-free1
Packing2
Ambient, TA (ºC)
A1373EKB

A1373EKB–T
Yes
A1373EKBTI

A1373EKBTI–T
Yes
Bulk, 500 pcs./bag 14.24-in. reel, 2000 pcs/reel
–40 to 85
A1373LKB–T
–40 to 85
A1374LKB–T
Yes
Bulk, 500 pcs./bag
A1374LKBTI

A1374LKBTI–T
Yes
14.24-in. reel, 2000 pcs/reel
–40 to 150
1Pb-based variants are being phased out of the product line. Certain variants cited in this footnote are in production but have been determined to be DISCONTINUED. Status date change October 31, 2006. These variants include: A1373LKB and A1374LKB. 2Contact Allegro for additional packing options.

MEMORY存储芯片MT47J64M16HR-25中文规格书

MEMORY存储芯片MT47J64M16HR-25中文规格书
Clock enable: CKE (registered HIGH) activates and CKE (registered LOW) deactivates clocking circuitry on the DDR2 SDRAM. The specific circuitry that is enabled/disabled is dependent on the DDR2 SDRAM configuration and operating mode. CKE LOW provides precharge power-down and SELF REFRESH operation (all banks idle), or ACTIVATE powerdown (row active in any bank). CKE is synchronous for power-down entry, power-down exit, output disable, and for self refresh entry. CKE is asynchronous for SELF REFRESH exit. Input buffers (excluding CK, CK#, CKE, and ODT) are disabled during power-down. Input buffers (excluding CKE) are disabled during self refresh. CKE is an SSTL_18 input but will detect a LVCMOS LOW level once VDD is applied during first power-up. After VREF has become stable during the power on and initialization sequence, it must be maintained for proper operation of the CKE receiver. For proper SELF REFRESH operation, VREF must be maintained.
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