HD74LS20RPEL中文资料 - 360文档中心

HD74LS241FP中文资料

元器件交易网Hitachi Code JEDEC EIAJWeight (reference value)DP-20N —Conforms 1.26 gUnit: mm元器件交易网Cautions1.Hitachi neither 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, includingintellectual 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, installationconditions 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.Hitachi, Ltd.Semiconductor & Integrated Circuits.Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.Hitachi Asia Pte. Ltd.16 Collyer Quay #20-00Hitachi TowerSingapore 049318Tel: 535-2100Fax: 535-1533URLNorthAmerica : http:/Europe : /hel/ecg Asia (Singapore): .sg/grp3/sicd/index.htm Asia (Taiwan): /E/Product/SICD_Frame.htm Asia (HongKong): /eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htmHitachi Asia Ltd.Taipei Branch Office3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105)Tel: <886> (2) 2718-3666Fax: <886> (2) 2718-8180Hitachi Asia (Hong Kong) Ltd.Group III (Electronic Components)7/F., North Tower, World Finance Centre,Harbour City, Canton Road, Tsim Sha Tsui,Kowloon, Hong Kong Tel: <852> (2) 735 9218Fax: <852> (2) 730 0281 Telex: 40815 HITEC HXHitachi Europe Ltd.Electronic Components Group.Whitebrook ParkLower Cookham Road MaidenheadBerkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000Fax: <44> (1628) 778322Hitachi Europe GmbHElectronic components Group Dornacher Stra§e 3D-85622 Feldkirchen, Munich GermanyTel: <49> (89) 9 9180-0Fax: <49> (89) 9 29 30 00Hitachi Semiconductor (America) Inc.179 East Tasman Drive,San Jose,CA 95134 Tel: <1> (408) 433-1990Fax: <1>(408) 433-0223For further information write to:。

HD74LS04P中文资料

HD74LS04 / HD74LS05Hex Inverters / Hex Inverters (with Open Collector Outputs)REJ03D0391–0300Rev.3.00Jul.13.2005 Features• Ordering Information• HD74LS04Part Name Package Type Package Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74LS04P DILP-14pin PRDP0014AB-B(DP-14AV)P —HD74LS04FPEL SOP-14 pin (JEITA) PRSP0014DF-B(FP-14DAV)FP EL (2,000 pcs/reel)HD74LS04RPEL SOP-14 pin (JEDEC) PRSP0014DE-A(FP-14DNV)RP EL (2,500 pcs/reel)• HD74LS05Part Name Package Type Package Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74LS05P DILP-14pin PRDP0014AB-B(DP-14AV)P —HD74LS05FPEL SOP-14 pin (JEITA) PRSP0014DF-B(FP-14DAV)FP EL (2,000 pcs/reel)HD74LS05RPEL SOP-14 pin (JEDEC) PRSP0014DE-A(FP-14DNV)RP EL (2,500 pcs/reel)Note: Please consult the sales office for the above package availability. Pin ArrangementCircuit Schematic (1/6)Absolute Maximum RatingsUnitRatingsItem SymbolSupply voltage V CC Note 7 VInput voltage V IN 7 V Power dissipation P T 400 mW Storage temperature Tstg –65 to +150 °CNote: Voltage value, unless otherwise noted, are with respect to network ground terminal.Recommended Operating Conditions• HD74LS04MaxUnitMinTypItem SymbolSupply voltage V CC 4.75 5.00 5.25 VI OH — — –400 µAOutput currentI OL — — 8 mA°C2575Operating temperature Topr–20• HD74LS05MaxUnitTypMinItem SymbolSupply voltage V CC 4.75 5.00 5.25 VOutput voltage V OH — — 5.5 VOutput current I OL — — 8 mA°C7525–20Operating temperature ToprElectrical Characteristics• HD74LS04(Ta = –20 to +75 °C)ItemSymbol min. typ.* max. Unit Condition V IH 2.0 — — V Input voltageV IL — — 0.8 V V OH 2.7 — — V V CC = 4.75 V, V IL = 0.8 V, I OH = –400 µA— — 0.5 I OL = 8 mAOutput voltageV OL— — 0.4 V I OL = 4 mAV CC = 4.75 V, V IH = 2 V I IH — — 20 µA V CC = 5.25 V, V I = 2.7 V I IL — — –0.4 mA V CC = 5.25 V, V I = 0.4 VInput current I I — — 0.1 mA V CC = 5.25 V, V I = 7 V Short-circuit outputcurrent I OS –20— –100 mA V CC = 5.25 V I CCH — 1.2 2.4 mA V CC = 5.25 VSupply currentI CCL — 3.6 6.6 mA V CC = 5.25 VInput clamp voltage V IK — — –1.5 V V CC = 4.75 V, I IN = –18 mA Note: * V CC = 5 V, Ta = 25°C• HD74LS05(Ta = –20 to +75 °C)ItemSymbol min. typ.* max. Unit Condition V IH 2.0 — — VInput voltageV IL — — 0.8 V— — 0.5 I OL = 8 mAOutput voltage V OL — — 0.4 V I OL = 4 mAV CC = 4.75 V, V IH = 2 VOutput current I OH — — 100 µA V CC = 4.75 V, V IL = 0.8 V, V OA = 5.5 VI IH — — 20 µA V CC = 5.25 V, V I = 2.7 VI IL — — –0.4 mA V CC = 5.25 V, V I = 0.4 VInput current I I —— 0.1 mA V CC = 5.25 V, V I = 7 V I CCH — 1.2 2.4 mA V CC = 5.25 VSupply currentI CCL —3.6 6.6 mA V CC = 5.25 V Input clamp voltage V IK — — –1.5 V V CC =4.75 V, I IN = –18 mA Note: * V CC = 5 V, Ta = 25°CSwitching Characteristics• HD74LS04(V CC = 5 V, Ta = 25°C)Item Symbol min. typ. max. Unit Conditiont PLH — 9 15 nsPropagation delay timet PHL — 10 15 ns C L = 15 pF, R L = 2 k Ω• HD74LS05(V CC = 5 V, Ta = 25°C)Item Symbol min. typ. max. Unit Conditiont PLH — 17 32 nsPropagation delay time t PHL — 15 28 nsC L = 15 pF, R L = 2 k ΩNote: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-0100)".Package Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001Renesas Technology Korea Co., Ltd.Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, KoreaTel: <82> 2-796-3115, Fax: <82> 2-796-2145Renesas Technology Malaysia Sdn. Bhd.Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, MalaysiaTel: <603> 7955-9390, Fax: <603> 7955-9510。

HD74LS112RP中文资料

Hitachi CodeJEDECEIAJWeight (reference value)DP-16 Conforms Conforms 1.07 gHitachi Code JEDEC EIAJWeight (reference value)FP-16DA —Conforms 0.24 g*Dimension including the plating thicknessBase material dimension° – 8°Hitachi CodeJEDECEIAJWeight (reference value)FP-16DNConformsConforms0.15 gUnit: mm*Dimension including the plating thickness Base material dimension° – 8°元器件交易网Cautions1.Hitachi neither 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, includingintellectual 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, installationconditions 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.Hitachi, Ltd.Semiconductor & Integrated Circuits.Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.Hitachi Asia Pte. Ltd.16 Collyer Quay #20-00Hitachi TowerSingapore 049318Tel: 535-2100Fax: 535-1533URLNorthAmerica : http:/Europe : /hel/ecg Asia (Singapore): .sg/grp3/sicd/index.htm Asia (Taiwan): /E/Product/SICD_Frame.htm Asia (HongKong): /eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htmHitachi Asia Ltd.Taipei Branch Office3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105)Tel: <886> (2) 2718-3666Fax: <886> (2) 2718-8180Hitachi Asia (Hong Kong) Ltd.Group III (Electronic Components)7/F., North Tower, World Finance Centre,Harbour City, Canton Road, Tsim Sha Tsui,Kowloon, Hong Kong Tel: <852> (2) 735 9218Fax: <852> (2) 730 0281 Telex: 40815 HITEC HXHitachi Europe Ltd.Electronic Components Group.Whitebrook ParkLower Cookham Road MaidenheadBerkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000Fax: <44> (1628) 778322Hitachi Europe GmbHElectronic components Group Dornacher Stra§e 3D-85622 Feldkirchen, Munich GermanyTel: <49> (89) 9 9180-0Fax: <49> (89) 9 29 30 00Hitachi Semiconductor (America) Inc.179 East Tasman Drive,San Jose,CA 95134 Tel: <1> (408) 433-1990Fax: <1>(408) 433-0223For further information write to:。

HD74HC108RPEL中文资料

HD74HC108Dual J-K Flip-Flops(with Preset, Common Clear and Common Clock)REJ03D0560-0200(Previous ADE-205-433)Rev.2.00Oct 11, 2005 DescriptionThis flip-flop is edge sensitive to the clock input and change state on the negative transition of the clock pulse. Each flip-flop has independent J, K, and preset inputs and Q and Q outputs. Two flip-flops are controlled by a common clear and a common clock. Preset and clear are independent of the clock and accomplished by a low logic level on the corresponding input.Features• High Speed Operation: t pd (Clock to Q) = 20 ns typ (C L = 50 pF)• High Output Current: Fanout of 10 LSTTL Loads• Wide Operating Voltage: V CC = 2 to 6 V• Low Input Current: 1 µA max• Low Quiescent Supply Current: I CC (static) = 2 µA max (Ta = 25°C)• Ordering InformationPart Name Package TypePackage Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74HC108RPEL SOP-14 pin (JEDEC) PRSP0014DE-A(FP-14DNV)RP EL (2,500 pcs/reel)Function TableClear go High simultaneously.H : High levelL : Low levelX : IrrelevantPin ArrangementAbsolute Maximum RatingsItem Symbol Ratings UnitSupply voltage range V CC –0.5 to 7.0 V Input / Output voltageVin, Vout –0.5 to V CC +0.5 VInput / Output diode current I IK , I OK ±20 mAOutput current I O ±25 mA V CC , GND current I CC or I GND±50 mAPower dissipation P T 500 mW Storage temperatureTstg –65 to +150 °CNote: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two ofwhich may be realized at the same time.Recommended Operating ConditionsItem Symbol Ratings Unit ConditionsSupply voltageV CC 2 to 6 VInput / Output voltage V IN , V OUT 0 to V CC V Operating temperature Ta –40 to 85 °C0 to 1000 V CC = 2.0 V0 to 500 V CC = 4.5 VInput rise / fall time *1t r , t f0 to 400ns V CC = 6.0 VNote: 1. This item guarantees maximum limit when one input switches.Waveform: Refer to test circuit of switching characteristics.Electrical CharacteristicsTa = 25°CTa = –40 to+85°CItem Symbol V CC (V) Min Typ Max Min Max UnitTest Conditions2.0 1.5 — — 1.5 — 4.53.15 — — 3.15 —V IH 6.0 4.2 — — 4.2 —V2.0 — — 0.5 — 0.5 4.5 — — 1.35 — 1.35Input voltage V IL6.0 — — 1.8 — 1.8 V 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — I OH = –20 µA 4.5 4.18 — — 4.13 — I OH = –4 mA V OH6.0 5.68 — — 5.63 —V Vin = V IH or V IL I OH = –5.2 mA2.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 I OL = 20 µA 4.5 — — 0.26 — 0.33I OL = 4 mAOutput voltage V OL6.0 — — 0.26 — 0.33 V Vin = V IH or V IL I OL = 5.2 mA Input current Iin6.0 — — ±0.1 — ±1.0 µA Vin = V CC or GNDQuiescent supplycurrent I CC 6.0 — — 2.0 — 20 µA Vin = V CC or GND, Iout = 0 µASwitching Characteristics (C L = 50 pF, Input t r = t f = 6 ns)Ta = 25°CTa = –40 to +85°CItem Symbol V CC (V) Min Typ Max Min Max UnitTest Conditions2.0 — — 6 — 5 4.5 — — 30 — 24Maximum clock frequency f max 6.0 — — 35 — 28 MHz2.0 — — 150 — 190 4.5 — 20 30 — 38 6.0 — — 26 — 33 ns Clock to Q or Q 2.0 — — 140 — 175 4.5 — 18 28 — 35 6.0 — — 24 — 30ns Clear to Q or Q 2.0 — — 140 — 175 4.5 — 16 28 — 35Propagation delay timet PLH , t PHL 6.0 — — 24 — 30ns Preset to Q or Q 2.0 80 — — 100 — 4.5 16 7 — 20 — Pulse width t w6.0 14 — — 17 —ns 2.0 100 — — 125 — 4.5 20 2 — 25 — Setup time t su6.0 17 — — 21 — ns 2.0 5 — — 5 — 4.5 5 –1 — 5 — Hold time t h6.0 5 — — 5 —ns 2.0 100 — 125 — — 4.5 20 –2 25 — —Removal time t rem6.0 17 — 21 — —ns 2.0 — — 75 — 95 4.5 — 5 15 — 19 Output rise/fall timet TLH , t THL6.0 — — 13 — 16ns Input capacitance Cin — — 5 10 — 10 pFTest CircuitWaveformsPackage Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001Renesas Technology Korea Co., Ltd.Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, KoreaTel: <82> 2-796-3115, Fax: <82> 2-796-2145Renesas Technology Malaysia Sdn. Bhd.Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, MalaysiaTel: <603> 7955-9390, Fax: <603> 7955-9510。

74LS20中文资料_数据手册_参数

2-Jun-2017
Status Package Type Package Pins Package
(1)
Drawing
Qty
ACTIVE
CFP
W
14
1
Eco Plan
(2)
TBD
ACTIVE
CFP
W
14
1
TBD
ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE ACTIVE
A42
N / A for Pkg Type -55 to 125
A42
N / A for Pkg Type -55 to 125
A42
N / A for Pkg Type -55 to 125
A42
N / A for Pkg Type -55 to 125
A42
N / A for Pkg Type -55 to 125
JM38510/ 30007BCA
JM38510/ 30007BDA
JM38510/ 30007BDA
JM38510/ 07006BCA
JM38510/ 07006BCA
JM38510/ 07006BDA
JM38510/ 07006BDA
JM38510/ 30007B2A
JM38510/ 30007B2A
CDIP
J
14
1
TBD
M38510/07006BCA
ACTIVE
CDIP
J
14
1
TBD
M38510/07006BDA

SL74HC20中文资料

This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or VOUT)≤VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V CC). Unused outputs must be left open.
SL74HC20
MAXIMUM RATINGS *
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)

DM74LS20中文资料

© 2000 Fairchild Semiconductor Corporation DS006355June 1986Revised March 2000DM74LS20 Dual 4-Input NAND GateDM74LS20Dual 4-Input NAND GateGeneral DescriptionThis device contains two independent gates each of which performs the logic NAND function.Ordering Code:Devices also available in T ape and Reel. Specify by appending the suffix letter “X” to the ordering code.Connection Diagram Function TableY = ABCD H = HIGH Logic Level L = LOW Logic LevelX = Either LOW or HIGH Logic LevelOrder Number Package NumberPackage DescriptionDM74LS20M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow DM74LS20NN14A14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 WideInputsOutput A B C D Y X X X L H X X L X H X L X X H L X X X H HHHHL 2D M 74L S 20Absolute Maximum Ratings (Note 1)Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings.The “Recommended Operating Conditions” table will define the conditions for actual device operation.Recommended Operating ConditionsElectrical Characteristicsover recommended operating free air temperature range (unless otherwise noted)Note 2: All typicals are at V CC = 5V, T A = 25°C.Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.Switching Characteristicsat V CC = 5V and T A = 25°CSupply Voltage 7V Input Voltage7VOperating Free Air Temperature Range 0°C to +70°C Storage Temperature Range−65°C to +150°CSymbol ParameterMin Nom Max Units V CC Supply Voltage4.7555.25V V IH HIGH Level Input Voltage 2V V IL LOW Level Input Voltage 0.8V I OH HIGH Level Output Current −0.4mA I OL LOW Level Output Current 8mA T AFree Air Operating Temperature70°CSymbol ParameterConditionsMinTyp Max Units (Note 2)V I Input Clamp Voltage V CC = Min, I I = −18 mA −1.5V V OH HIGH Level V CC = Min, I OH = Max, 2.73.4VOutput Voltage V IL = Max V OLLOW Level V CC = Min, I OL = Max,0.350.5Output VoltageV IH = MinVI OL = 4 mA, V CC = Min 0.250.4I I Input Current @ Max Input Voltage V CC = Max, V I = 7V 0.1mA I IH HIGH Level Input Current V CC = Max, V I = 2.7V 20µA I IL LOW Level Input Current V CC = Max, V I = 0.4V −0.36mA I OS Short Circuit Output Current V CC = Max (Note 3)−20−100mA I CCH Supply Current with Outputs HIGH V CC = Max 0.40.8mA I CCLSupply Current with Outputs LOWV CC = Max1.22.2mAR L = 2 k ΩSymbol ParameterC L = 15 pFC L = 50 pFUnitsMinMax Min Max t PLH Propagation Delay Time 310415ns LOW-to-HIGH Level Output t PHLPropagation Delay Time 310415ns HIGH-to-LOW Level OutputDM74LS20Physical Dimensions inches (millimeters) unless otherwise noted14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 NarrowPackage Number M14A4D M 74L S 20 D u a l 4-I n p u t N A N D G a t ePhysical Dimensions inches (millimeters) unless otherwise noted (Continued)14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 WidePackage Number N14AFairchild 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.LIFE 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 systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions 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 effectiveness.。

HD74LS20P中文资料

HD74LS20P中⽂资料HD74LS20Dual 4-input Positive NAND GatesREJ03D0400–0200Rev.2.00Feb.18.2005 FeaturesOrdering InformationPart Name Package Type Package Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74LS20P DILP-14pin PRDP0014AB-B(DP-14AV)P —HD74LS20FPEL SOP-14 pin (JEITA) PRSP0014DF-B(FP-14DAV)FP EL (2,000 pcs/reel)HD74LS20RPEL SOP-14 pin (JEDEC) PRSP0014DE-A(FP-14DNV)RP EL (2,500 pcs/reel)Note: Please consult the sales office for the above package availability. Pin ArrangementCircuit Schematic (1/2)Absolute Maximum RatingsUnit Item SymbolRatingsSupply voltage V CC 7 V Input voltage V IN 7 V Power dissipation P T 400mW Storage temperature Tstg –65 to +150 °CNote: Voltage value, unless otherwise noted, are with respect to network ground terminal. Recommended Operating ConditionsUnitMaxItem SymbolMinTypSupply voltage V CC 4.75 5.00 5.25 VI OH — — –400 µAOutput currentI OL — — 8 mA°C7525–20Operating temperature ToprElectrical Characteristics(Ta = –20 to +75 °C)ItemSymbol min. typ.* max. Unit Condition V IH 2.0 — — V Input voltageV IL — — 0.8 V V OH 2.7 — — V V CC = 4.75 V, V IL = 0.8 V, I OH = –400 µA— — 0.5 I OL = 8 mA V CC = 4.75 V, V IH = 2 VOutput voltageV OL— — 0.4 V I OL = 4 mAI IH — — 20 µA V CC = 5.25 V, V I = 2.7 V I IL — — –0.4 mA V CC = 5.25 V, V I = 0.4 VInput current I I — — 0.1 mA V CC = 5.25 V, V I = 7 V Short-circuit outputcurrent I OS –20— –100 mA V CC = 5.25 V I CCH — 0.4 0.8 mA V CC = 5.25 VSupply currentI CCL — 1.2 2.2 mA V CC = 5.25 VInput clamp voltage V IK — — –1.5 V V CC = 4.75 V, I IN = –18 mA Note: * V CC = 5 V, Ta = 25°CSwitching Characteristics(V CC = 5 V, Ta = 25°C)Item Symbol min. typ. max. Unit Conditiont PLH — 9 15 nsPropagation delay time t PHL — 10 15 ns C L = 15 pF, R L = 2 k ?Note: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-0100)". Package Dimensions/doc/8d2cf5e6aeaad1f347933f02.html RENESAS SALES OFFICESRefer to "/doc/8d2cf5e6aeaad1f347933f02.html /en/network" for the latest and detailed information. Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001。

74LS20中文资料

© 2000 Fairchild Semiconductor Corporation DS006355June 1986Revised March 2000DM74LS20 Dual 4-Input NAND GateDM74LS20Dual 4-Input NAND GateGeneral DescriptionThis device contains two independent gates each of which performs the logic NAND function.Ordering Code:Devices also available in T ape and Reel. Specify by appending the suffix letter “X” to the ordering code.Connection Diagram Function TableY = ABCD H = HIGH Logic Level L = LOW Logic LevelX = Either LOW or HIGH Logic LevelOrder Number Package NumberPackage DescriptionDM74LS20M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow DM74LS20NN14A14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 WideInputsOutput A B C D Y X X X L H X X L X H X L X X H L X X X H HHHHL 2D M 74L S 20Absolute Maximum Ratings (Note 1)Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings.The “Recommended Operating Conditions” table will define the conditions for actual device operation.Recommended Operating ConditionsElectrical Characteristicsover recommended operating free air temperature range (unless otherwise noted)Note 2: All typicals are at V CC = 5V, T A = 25°C.Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.Switching Characteristicsat V CC = 5V and T A = 25°CSupply Voltage 7V Input Voltage7VOperating Free Air Temperature Range 0°C to +70°C Storage Temperature Range−65°C to +150°CSymbol ParameterMin Nom Max Units V CC Supply Voltage4.7555.25V V IH HIGH Level Input Voltage 2V V IL LOW Level Input Voltage 0.8V I OH HIGH Level Output Current −0.4mA I OL LOW Level Output Current 8mA T AFree Air Operating Temperature70°CSymbol ParameterConditionsMinTyp Max Units (Note 2)V I Input Clamp Voltage V CC = Min, I I = −18 mA −1.5V V OH HIGH Level V CC = Min, I OH = Max, 2.73.4VOutput Voltage V IL = Max V OLLOW Level V CC = Min, I OL = Max,0.350.5Output VoltageV IH = MinVI OL = 4 mA, V CC = Min 0.250.4I I Input Current @ Max Input Voltage V CC = Max, V I = 7V 0.1mA I IH HIGH Level Input Current V CC = Max, V I = 2.7V 20µA I IL LOW Level Input Current V CC = Max, V I = 0.4V −0.36mA I OS Short Circuit Output Current V CC = Max (Note 3)−20−100mA I CCH Supply Current with Outputs HIGH V CC = Max 0.40.8mA I CCLSupply Current with Outputs LOWV CC = Max1.22.2mAR L = 2 k ΩSymbol ParameterC L = 15 pFC L = 50 pFUnitsMinMax Min Max t PLH Propagation Delay Time 310415ns LOW-to-HIGH Level Output t PHLPropagation Delay Time 310415ns HIGH-to-LOW Level OutputDM74LS20Physical Dimensions inches (millimeters) unless otherwise noted14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 NarrowPackage Number M14A4D M 74L S 20 D u a l 4-I n p u t N A N D G a t ePhysical Dimensions inches (millimeters) unless otherwise noted (Continued)14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 WidePackage Number N14AFairchild 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.LIFE 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 systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions 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 effectiveness.。

HD74LS48P中文资料

HD74LS48BCD-to-Seven-Segment Decoder / Driver (Internal Pull-up outputs)REJ03D0411–0300Rev.3.00 Jul.22.2005HD74LS48 features active high outputs for driving lamp buffers. This circuit has full ripple blanking input / output controls and a lamp test input. Display patterns for BCD input counts above 9 are unique symbols to authenticate input conditions. This circuit incorporates automatic leading and / or trailing-edge zero-blanking control (RBI and RBO). Lamp test (LT) of these types may be performed at any time when the BI / RBO node is at a high level. It contains an overriding blanking input (BI) which can be used to control the lamp intensity be pulsing or to inhibit the outputs. Inputs and outputs are entirely compatible for use with TTL or DTL logic outputs.Features• Ordering InformationPart NamePackage TypePackage Code (Previous Code) PackageAbbreviationTaping Abbreviation (Quantity)HD74LS48P DILP-16 pin PRDP0016AE-B (DP-16FV)P —Pin ArrangementV CC GNDBC LampTest BI/RBORBI DA f g b a c d e15161234567148910111213OutputsInputsInputsB C D ARBI BI/RBO LT f g d ec b aFunction TableInputs OutputsDecimal or FunctionLT RBI D C B A BI / RBOa b c d e f g Note0 H H L L L L H H H H H H H L 1 H X L L L H H L H H L L L L2 H X L L H L H H H L H H L H3 H X L L H H H H H H H L L H4 H X L H L L H L H H L L H H5 H X L H L H H H L H H L H H6 H X L H H L H L L H H H H H7 H X L H H H H H H H L L L L8 H X H L L L H H H H H H H H 9 H X H L L H H H H H L L H H 10 H X H L H L H L L L H H L H 11 H X H L H H H L L H H L L H 12 H X H H L L H L H L L L H H 13 H X H H L H H H L L H L H H 14 H X H H H L H L L L H H H H 15 H X H H H H H L L L L L L L 1BI X X X X X X L L L L L L L L 2 RBI H L L L L L L L L L L L L L 3 LTL X X X X X H H H H H H H H 4H; high level, L; low level, X, irrelevantNotes: 1. The blanking input (BI) must be open or held at a high logic level when output functions 0 through 15 aredesired.2. When a low logic level is applied directly to the blanking input (BI), all segment outputs are low regardless ofthe level of any other input.3. When ripple-blanking input (RBI) and inputs A, B, C, and D are at a low level with the lamp-test input high, allsegment outputs go low and the ripple-blanking output (RBO) goes to a low level (response condition).4. When a blanking input / ripple blanking output (BI / RBO) is open or held high and a low is applied to thelamp-test input, all segment outputs are high.a 5432106789101112131415b d cf egBlock DiagramDBlanking Input orRipple BlankingOutput (BI/RBO)Lamp Test (LT)Ripple Blanking (RBI)Absolute Maximum RatingsItem SymbolUnitRatingsSupply voltage V CC 7 V Input voltage VI N 7 V Power dissipation P T 400 mW Storage temperature Tstg –65 to +150 °CNote: Voltage value, unless otherwise noted, are with respect to network ground terminal.Recommended Operating ConditionsMaxUnitMinItem SymbolTypSupply voltage V CC 4.75 5.00 5.25 VI OH (a to g) — — –100 µAOutput currentI OH (BI/RBO) — — –50 µAI OL (a to g) — — 6 mAOutput currentI OL (BI/RBO) — — 3.2 mAOperating temperature Topr -20 25 75 °CElectrical Characteristics(Ta = –20 to +75 °C)Item Symbol min. typ.* max. Unit ConditionV IH 2.0 — — VInput voltageV IL —— 0.8 V a to g 2.4 — — V I OH = –100 µA BI / RBO V OH2.4 — — V I OH = –50 µA V CC = 4.75 V,V IH = 2 V, V IL = 0.8 V — — 0.4 I OL = 2 mAa to g — — 0.5 VI OL = 6 mA — — 0.4 I OL = 1.6 mAOutput voltageBI / RBOV OL— — 0.5 VI OL = 3.2 mAV CC = 4.75 V,V IH = 2 V, V IL = 0.8 V Output current** a to gI O –1.3 — — mA V CC = 4.75 V, V O = 0.85 V, I IH — — 20 µA V CC = 5.25 V, V I = 2.7 Vexcept BI/ RBO— — –0.4 mA V CC = 5.25 V, V I = 0.4 VBI / RBO I IL— — –1.2 mA V CC = 5.25 V, V I = 0.4 V Input currentexcept BI / RBOI I — — 0.1 mA V CC = 5.25 V, V I = 7 V Short-circuitoutput current BI / RBOI OS –0.3 — –2 mA V CC = 5.25 V Supply current***I CC — 25 38 mA V CC = 5.25 VInput clamp voltage V IK — — –1.5 V V CC = 4.75 V, I IN = –18 mA Notes: * V CC = 5 V, Ta = 25°C ** Input condition as for V OH *** I CC is measured with all outputs open and inputs at 4.5 V.Switching Characteristics(V CC = 5 V, Ta = 25°C)Item Symbol Input min. typ. max. Unit Conditiont PHL — — 100Turn-on time t PLH A — — 100 ns C L = 15 pF, R L = 4 k Ωt PHL — — 100Turn-off time t PLH RBI — — 100ns C L = 15 pF, R L = 6 k ΩTesting MethodTest CircuitWaveformt PLHt PHLt PHLt PLH10%90%1.3 V1.3 V1.3 V1.3 V1.3 V1.3 V10%90%In phase outputOut of phase outputt TLHt THLTesting TableInputs OutputsItemRBI D C B A a b c d e f g 4.5 V GND GND GND IN OUT — — OUT OUT OUT — 4.5 V GND GND 4.5 V IN — — OUT — OUT — — 4.5 VGND4.5 V4.5 VINOUTOUT—OUTOUTOUTOUTt PLH t PHL IN GND GND GND GND OUT OUT OUT OUT OUT OUT —Package Dimensions1p1e b A LAecθ( Ni/Pd/Au plating ) RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001Renesas Technology Korea Co., Ltd.Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, KoreaTel: <82> 2-796-3115, Fax: <82> 2-796-2145Renesas Technology Malaysia Sdn. Bhd.Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, MalaysiaTel: <603> 7955-9390, Fax: <603> 7955-9510。

HD74LS47RP中文资料

Hitachi CodeJEDECEIAJWeight (reference value)DP-16 Conforms Conforms 1.07 gHitachi Code JEDEC EIAJWeight (reference value)FP-16DA —Conforms 0.24 g*Dimension including the plating thicknessBase material dimension° – 8°Hitachi CodeJEDECEIAJWeight (reference value)FP-16DNConformsConforms0.15 gUnit: mm*Dimension including the plating thickness Base material dimension° – 8°元器件交易网Cautions1.Hitachi neither 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, includingintellectual 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, installationconditions 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.Hitachi, Ltd.Semiconductor & Integrated Circuits.Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.Hitachi Asia Pte. Ltd.16 Collyer Quay #20-00Hitachi TowerSingapore 049318Tel: 535-2100Fax: 535-1533URLNorthAmerica : http:/Europe : /hel/ecg Asia (Singapore): .sg/grp3/sicd/index.htm Asia (Taiwan): /E/Product/SICD_Frame.htm Asia (HongKong): /eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htmHitachi Asia Ltd.Taipei Branch Office3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105)Tel: <886> (2) 2718-3666Fax: <886> (2) 2718-8180Hitachi Asia (Hong Kong) Ltd.Group III (Electronic Components)7/F., North Tower, World Finance Centre,Harbour City, Canton Road, Tsim Sha Tsui,Kowloon, Hong Kong Tel: <852> (2) 735 9218Fax: <852> (2) 730 0281 Telex: 40815 HITEC HXHitachi Europe Ltd.Electronic Components Group.Whitebrook ParkLower Cookham Road MaidenheadBerkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000Fax: <44> (1628) 778322Hitachi Europe GmbHElectronic components Group Dornacher Stra§e 3D-85622 Feldkirchen, Munich GermanyTel: <49> (89) 9 9180-0Fax: <49> (89) 9 29 30 00Hitachi Semiconductor (America) Inc.179 East Tasman Drive,San Jose,CA 95134 Tel: <1> (408) 433-1990Fax: <1>(408) 433-0223For further information write to:。

IN74HC20资料

A L X X X H
FUNCTION TABLE
B X L X X H H Output Y H H H H L
X = don’t care
1
元器件交易网
IN74HC20
MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) -0.5 to +7.0 V VIN DC Input Voltage (Referenced to GND) -1.5 to VCC +1.5 V VOUT DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V IIN DC Input Current, per Pin mA ±20 IOUT DC Output Current, per Pin mA ±25 ICC DC Supply Current, VCC and GND Pins mA ±50 PD Power Dissipation in Still Air, Plastic DIP+ 750 mW SOIC Package+ 500 Tstg Storage Temperature -65 to +150 °C 260 TL Lead Temperature, 1 mm from Case for 10 °C Seconds (Plastic DIP or SOIC Package) * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C RECOMMENDED OPERATING CONDITIONS Symbol Parameter VCC DC Supply Voltage (Referenced to GND) VIN, VOUT DC Input Voltage, Output Voltage (Referenced to GND) TA Operating Temperature, All Package Types t r, tf Input Rise and Fall Time (Figure VCC =2.0 V 1) VCC =4.5 V VCC =6.0 V Min 2.0 0 -55 0 0 0 Max 6.0 VCC +125 1000 500 400 Unit V V °C ns

HD74LS390中文资料

Hitachi CodeJEDECEIAJWeight (reference value)DP-16 Conforms Conforms 1.07 gHitachi Code JEDEC EIAJWeight (reference value)FP-16DA —Conforms 0.24 g*Dimension including the plating thicknessBase material dimension° – 8°Hitachi CodeJEDECEIAJWeight (reference value)FP-16DNConformsConforms0.15 gUnit: mm*Dimension including the plating thickness Base material dimension° – 8°元器件交易网Cautions1.Hitachi neither 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, includingintellectual 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, installationconditions 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.Hitachi, Ltd.Semiconductor & Integrated Circuits.Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.Hitachi Asia Pte. Ltd.16 Collyer Quay #20-00Hitachi TowerSingapore 049318Tel: 535-2100Fax: 535-1533URLNorthAmerica : http:/Europe : /hel/ecg Asia (Singapore): .sg/grp3/sicd/index.htm Asia (Taiwan): /E/Product/SICD_Frame.htm Asia (HongKong): /eng/bo/grp3/index.htm Japan : http://www.hitachi.co.jp/Sicd/indx.htmHitachi Asia Ltd.Taipei Branch Office3F, Hung Kuo Building. No.167, Tun-Hwa North Road, Taipei (105)Tel: <886> (2) 2718-3666Fax: <886> (2) 2718-8180Hitachi Asia (Hong Kong) Ltd.Group III (Electronic Components)7/F., North Tower, World Finance Centre,Harbour City, Canton Road, Tsim Sha Tsui,Kowloon, Hong Kong Tel: <852> (2) 735 9218Fax: <852> (2) 730 0281 Telex: 40815 HITEC HXHitachi Europe Ltd.Electronic Components Group.Whitebrook ParkLower Cookham Road MaidenheadBerkshire SL6 8YA, United Kingdom Tel: <44> (1628) 585000Fax: <44> (1628) 778322Hitachi Europe GmbHElectronic components Group Dornacher Stra§e 3D-85622 Feldkirchen, Munich GermanyTel: <49> (89) 9 9180-0Fax: <49> (89) 9 29 30 00Hitachi Semiconductor (America) Inc.179 East Tasman Drive,San Jose,CA 95134 Tel: <1> (408) 433-1990Fax: <1>(408) 433-0223For further information write to:。

HD74LS240P中文资料

HD74LS240Octal Buffers / Line Drivers / Line Receivers(inverted three-state outputs)REJ03D0459–0200Rev.2.00Feb.18.2005 Features• Ordering InformationPart Name Package Type Package Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74LS240P DILP-20pin PRDP0020AC-B(DP-20NEV)P —HD74LS240FPEL SOP-20 pin (JEITA) PRSP0020DD-B(FP-20DAV)FP EL (2,000 pcs/reel)HD74LS240RPEL SOP-20 pin (JEDEC) PRSP0020DC-A(FP-20DBV)RP EL (1,000 pcs/reel)Note: Please consult the sales office for the above package availability. Pin ArrangementFunction TableInputs OutputG A YH X ZL H LL L HNote: H; high level, L; low level, X; irrelevant, Z; off (high-impedance) state of a 3-state outputBlock Diagram (1/2)Absolute Maximum RatingsUnitRatingsItem SymbolSupply voltage V CC 7 VInput voltage V IN 7 VPower dissipation P T 400 mWStorage temperature Tstg –65 to +150 °CNote: Voltage value, unless otherwise noted, are with respect to network ground terminal.Recommended Operating ConditionsMaxUnitMinItem SymbolTypSupply voltage V CC 4.75 5.00 5.25 VI OH — — –15 mAOutput currentI OL — — 24 mA°C75Operating temperature Topr–2025Electrical Characteristics(Ta = –20 to +75 °C)ItemSymbol min. typ.* max. Unit Condition V IH 2.0 — — VInput voltageV IL — — 0.8 V Hysteresis V T + – V T –0.2 0.4 — V V CC = 4.75 V2.4 — — V IL = 0.8 V, I OH = – 3 mA V OH 2.0 — — VV IL = 0.5 V, I OH = – 15 mA V CC = 4.75V, V IH = 2 V— — 0.4 I OL = 12 mA Output voltageV OL — — 0.5 VI OL = 24 mA V CC = 4.75 V, V IH = 2 V,V IL = 0.8 V I OZH — — 20 µA V O = 2.7 V Off-state output currentI OZL — — –20 µA V O = 0.4 VV CC = 5.25 V, V IH = 2 V, V IL = 0.8 V I IH — — 20 µA V CC = 5.25 V, V I = 2.7 V I IL — — –0.2 mA V CC = 5.25 V, V I = 0.4 VInput current I I —— 0.1 mA V CC = 5.25 V, V I = 7 V Short-circuit outputcurrentI OS –40— –225 mA V CC = 5.25 V Outputs high— 13 23Outputs low— 26 44Supply current**All outputsdisabledI CC— 29 50mA V CC = 5.25 V Input clamp voltage V IK — — –1.5 V V CC = 4.75 V, I IN = –18 mA Notes: * V CC = 5 V, Ta = 25°C ** I CC is measured with all outputs open.Switching Characteristics(V CC = 5 V, Ta = 25°C)Item Symbol min. typ. max. Unit Conditiont PLH — 9 14Propagation delay time t PHL — 12 18nst ZL — 20 30 nsOutput enable timet ZH — 15 23 ns C L = 45 pF, R L = 667 Ωt LZ — 15 25 nsOutput disable time t HZ — 10 18 ns C L = 5 pF, R L = 667 ΩNote: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-0100)".Package Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001。

HD74LS86P中文资料

HD74LS86Quadruple 2-input Exclusive-OR GatesREJ03D0422–0200Rev.2.00Feb.18.2005 Features• Ordering InformationPart Name Package Type Package Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74LS86P DILP-14pin PRDP0014AB-B(DP-14AV)P —HD74LS86FPEL SOP-14 pin (JEITA) PRSP0014DF-B(FP-14DAV)FP EL (2,000 pcs/reel)HD74LS86RPEL SOP-14 pin (JEDEC) PRSP0014DE-A(FP-14DNV)RP EL (2,500 pcs/reel)Note: Please consult the sales office for the above package availability.Pin ArrangementFunction TableInputs OutputsA B YL L LL H HH L HH H LH; high level, L; low levelAbsolute Maximum RatingsItem Symbol Ratings UnitSupply voltage V CC 7 V Input voltage V IN 7 V Power dissipation P T 400 mW Storage temperature Tstg –65 to +150 °C Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.Recommended Operating ConditionsItem Symbol Min Typ Max UnitSupply voltage V CC 4.75 5.00 5.25 VI OH — — –400 µAOutput currentI OL — — 8 mAOperating temperature Topr –20 25 75 °CElectrical Characteristics(Ta = –20 to +75 °C)ItemSymbol min. typ.* max. UnitConditionV IH 2.0 — — V Input voltageV IL — — 0.8 VV OH 2.7 — — VV CC = 4.75 V, V IH = 2 V, V IL = 0.8 V,I OH = –400 µA— — 0.4 I OL = 4 mA Output voltageV OL — — 0.5 VI OL = 8 mA V CC = 4.75 V, V IH = 2 V,V IL = 0.8 VI IH — — 40 µA V CC = 5.25 V, V I = 2.7 V I IL — — –0.8 mA V CC = 5.25 V, V I = 0.4 VInput current I I —— 0.2 mA V CC = 5.25 V, V I = 7 V Short-circuit outputcurrentI OS –20 — –100 mA V CC = 5.25 VSupply current** I CC — 6.1 10 mA V CC = 5.25 VInput clamp voltageV IK — — –1.5 V V CC = 4.75 V, I IN = –18 mANotes: * V CC = 5 V, Ta = 25°C** I CC is measured with all outputs open and all other inputs grounded.Switching Characteristics(V CC = 5 V, Ta = 25°C)Item Symbol Inputs min. typ. max. Unit Test Conditionst PLH — 12 23 nst PHL A or B— 10 17 ns Other inputs = 0 V t PLH — 20 30 nsPropagation delay timet PHL A or B— 13 22 nsC L = 15 pF,R L = 2 k Ω Other inputs = 4.5 VNote: Refer to Test Circuit and Waveform of the Common Item "TTL Common Matter (Document No.: REJ27D0005-0100)".Package Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001。

HD74HC04RPEL中文资料

HD74HC04Hex InvertersREJ03D0534-0200(Previous ADE-205-406)Rev.2.00Oct 06, 2005 Features• High Speed Operation: t pd = 7.5 ns typ (C L = 50 pF)• High Output Current: Fanout of 10 LSTTL Loads• Wide Operating Voltage: V CC = 2 to 6 V• Low Input Current: 1 µA max• Low Quiescent Supply Current: I CC (static) = 1 µA max (Ta = 25°C)• Ordering InformationPart Name Package TypePackage Code(Previous Code)PackageAbbreviationTaping Abbreviation(Quantity)HD74HC04P DILP-14pin PRDP0014AB-B(DP-14AV)P —HD74HC04FPEL SOP-14 pin (JEITA) PRSP0014DF-B(FP-14DAV)FP EL (2,000 pcs/reel)HD74HC04RPEL SOP-14 pin (JEDEC) PRSP0014DE-A(FP-14DNV)RP EL (2,500 pcs/reel)HD74HC04TELL TSSOP-14pin PTSP0014JA-B(TTP-14DV)T ELL(2,000pcs/reel)Note: Please consult the sales office for the above package availability.Function TableInput OutputA YL HH L H : High levelL : Low levelPin ArrangementAbsolute Maximum RatingsItem Symbol Ratings UnitSupply voltage range V CC –0.5 to 7.0 V Input / Output voltage Vin, Vout –0.5 to V CC +0.5VInput / Output diode current I IK , I OK ±20 mAOutput current I O±25 mAV CC , GND current I CC or I GND ±50 mAPower dissipationP T 500 mWStorage temperature Tstg –65 to +150 °CNote: The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two ofwhich may be realized at the same time.Recommended Operating ConditionsItem Symbol Ratings Unit ConditionsSupply voltage V CC 2 to 6 V Input / Output voltage V IN , V OUT 0 to V CC V Operating temperature Ta –40 to 85 °C 0 to 1000 V CC = 2.0 V 0 to 500V CC = 4.5 V Input rise / fall time *1t r , t f0 to 400nsV CC = 6.0 VNote: 1. This item guarantees maximum limit when one input switches. Waveform: Refer to test circuit of switching characteristics.Electrical CharacteristicsTa = 25°CTa = –40 to+85°CItem Symbol V CC (V) Min Typ Max Min Max UnitTest Conditions2.0 1.5 — — 1.5 — 4.53.15 — — 3.15 —V IH 6.0 4.2 — — 4.2 —V2.0 — — 0.5 — 0.5 4.5 — — 1.35 — 1.35Input voltage V IL6.0 — — 1.8 — 1.8 V 2.0 1.9 2.0 — 1.9 — 4.5 4.4 4.5 — 4.4 — 6.0 5.9 6.0 — 5.9 — I OH = –20 µA 4.5 4.18 — — 4.13 — I OH = –4 mA V OH6.0 5.68 — — 5.63 —V Vin = V IH or V IL I OH = –5.2 mA2.0 — 0.0 0.1 — 0.1 4.5 — 0.0 0.1 — 0.1 6.0 — 0.0 0.1 — 0.1 I OL = 20 µA 4.5 — — 0.26 — 0.33I OL = 4 mAOutput voltage V OL6.0 — — 0.26 — 0.33 V Vin = V IH or V IL I OL = 5.2 mA Input current Iin6.0 — — ±0.1 — ±1.0 µA Vin = V CC or GNDQuiescent supplycurrent I CC 6.0 — — 1.0 — 10 µA Vin = V CC or GND, Iout = 0 µASwitching Characteristics (C L = 50 pF, Input t r = t f = 6 ns)Ta = 25°CTa = –40 to +85°CItem Symbol V CC (V) Min Typ Max Min Max UnitTest Conditions2.0 — — 90 — 115 4.5 — 7 18 — 23t PLH 6.0 — — 15 — 20ns 2.0 — — 90 — 115 4.5 — 8 18 — 23 Propagation delay time t PHL6.0 — — 15 — 20ns 2.0 — — 75 — 95 4.5 — 5 15 — 19 Output rise time t TLH6.0 — — 13 — 16ns 2.0 — — 75 — 95 4.5 — 5 15 — 19 Output fall timet THL6.0 — — 13 — 16 ns Input capacitance Cin— — 5 10 — 10 pFTest CircuitWaveformsPackage Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001Renesas Technology Korea Co., Ltd.Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, KoreaTel: <82> 2-796-3115, Fax: <82> 2-796-2145Renesas Technology Malaysia Sdn. Bhd.Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, MalaysiaTel: <603> 7955-9390, Fax: <603> 7955-9510。

74LS系列大全

首页电子资料技术应用电子元器件电阻器电容器电感器电位器变压器继电器二极管三极管场效应管晶闸管集成电路开关器件发光二极管接插件电声器件电子管晶振温敏元件光敏元器件湿敏元器件压敏电阻传感器数码管保险丝可控硅电子镇流器PCB热敏电阻电池接口定义芯片引脚图元件代换光耦电子电路图技术论坛您的位置：电子发烧友网 > 电子元器件 > 接口定义 >74系列芯片引脚图资料大全2009年05月03日 23:31 本站整理作者：佚名关键字：74LS(56)74hc(83)74系列芯片引脚图资料大全反相器驱动器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等.下面介绍一下常用的74芯片，以便大家在电路中遇到了查询---------------------------------------------------- 型号内容----------------------------------------------------74ls00 2输入四与非门74ls01 2输入四与非门 (oc)74ls02 2输入四或非门74ls03 2输入四与非门 (oc)74ls04 六倒相器74ls05 六倒相器(oc)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)74ls08 2输入四与门74ls09 2输入四与门(oc)74ls10 3输入三与非门74ls11 3输入三与门74ls12 3输入三与非门 (oc)74ls13 4输入双与非门 (斯密特触发)74ls14 六倒相器(斯密特触发)74ls15 3输入三与门 (oc)74ls16 六高压输出反相缓冲器/驱动器(oc,15v) 74ls17 六高压输出缓冲器/驱动器(oc,15v)74ls18 4输入双与非门 (斯密特触发)74ls19 六倒相器(斯密特触发)74ls20 4输入双与非门74ls21 4输入双与门74ls22 4输入双与非门(oc)74ls23 双可扩展的输入或非门74ls24 2输入四与非门(斯密特触发)74ls25 4输入双或非门(有选通)74ls26 2输入四高电平接口与非缓冲器(oc,15v) 74ls27 3输入三或非门74ls28 2输入四或非缓冲器74ls30 8输入与非门74ls31 延迟电路74ls32 2输入四或门74ls33 2输入四或非缓冲器(集电极开路输出) 74ls34 六缓冲器74ls35 六缓冲器(oc)74ls36 2输入四或非门(有选通)74ls37 2输入四与非缓冲器74ls38 2输入四或非缓冲器(集电极开路输出) 74ls39 2输入四或非缓冲器(集电极开路输出) 74ls40 4输入双与非缓冲器74ls41 bcd-十进制计数器74ls42 4线-10线译码器(bcd输入)74ls43 4线-10线译码器(余3码输入)74ls44 4线-10线译码器(余3葛莱码输入)74ls45 bcd-十进制译码器/驱动器74ls46 bcd-七段译码器/驱动器74ls47 bcd-七段译码器/驱动器74ls48 bcd-七段译码器/驱动器74ls49 bcd-七段译码器/驱动器(oc)74ls50 双二路2-2输入与或非门(一门可扩展)74ls51 双二路2-2输入与或非门74ls51 二路3-3输入,二路2-2输入与或非门74ls52 四路2-3-2-2输入与或门(可扩展)74ls53 四路2-2-2-2输入与或非门(可扩展)74ls53 四路2-2-3-2输入与或非门(可扩展)74ls54 四路2-2-2-2输入与或非门74ls54 四路2-3-3-2输入与或非门74ls54 四路2-2-3-2输入与或非门74ls55 二路4-4输入与或非门(可扩展)74ls60 双四输入与扩展74ls61 三3输入与扩展74ls62 四路2-3-3-2输入与或扩展器74ls63 六电流读出接口门74ls64 四路4-2-3-2输入与或非门74ls65 四路4-2-3-2输入与或非门(oc)74ls70 与门输入上升沿jk触发器74ls71 与输入r-s主从触发器74ls72 与门输入主从jk触发器74ls73 双j-k触发器(带清除端)74ls74 正沿触发双d型触发器(带预置端和清除端)74ls75 4位双稳锁存器74ls76 双j-k触发器(带预置端和清除端)74ls77 4位双稳态锁存器74ls78 双j-k触发器(带预置端,公共清除端和公共时钟端) 74ls80 门控全加器74ls81 16位随机存取存储器74ls82 2位二进制全加器(快速进位)74ls83 4位二进制全加器(快速进位)74ls84 16位随机存取存储器74ls85 4位数字比较器74ls86 2输入四异或门74ls87 四位二进制原码/反码/oi单元74ls89 64位读/写存储器74ls90 十进制计数器74ls91 八位移位寄存器74ls92 12分频计数器(2分频和6分频)74ls93 4位二进制计数器74ls94 4位移位寄存器(异步)74ls95 4位移位寄存器(并行io)74ls96 5位移位寄存器74ls97 六位同步二进制比率乘法器74ls100 八位双稳锁存器74ls103 负沿触发双j-k主从触发器(带清除端)74ls106 负沿触发双j-k主从触发器(带预置,清除,时钟) 74ls107 双j-k主从触发器(带清除端)74ls108 双j-k主从触发器(带预置,清除,时钟)74ls109 双j-k触发器(带置位,清除,正触发)74ls110 与门输入j-k主从触发器(带锁定)74ls111 双j-k主从触发器(带数据锁定)74ls112 负沿触发双j-k触发器(带预置端和清除端)74ls113 负沿触发双j-k触发器(带预置端)74ls114 双j-k触发器(带预置端,共清除端和时钟端)74ls116 双四位锁存器74ls120 双脉冲同步器/驱动器74ls121 单稳态触发器(施密特触发)74ls122 可再触发单稳态多谐振荡器(带清除端)74ls123 可再触发双单稳多谐振荡器74ls125 四总线缓冲门(三态输出)74ls126 四总线缓冲门(三态输出)74ls128 2输入四或非线驱动器74ls131 3-8译码器74ls132 2输入四与非门(斯密特触发)74ls133 13输入端与非门74ls134 12输入端与门(三态输出)74ls135 四异或/异或非门74ls136 2输入四异或门(oc)74ls137 八选1锁存译码器/多路转换器74ls138 3-8线译码器/多路转换器74ls139 双2-4线译码器/多路转换器74ls140 双4输入与非线驱动器74ls141 bcd-十进制译码器/驱动器74ls142 计数器/锁存器/译码器/驱动器74ls145 4-10译码器/驱动器74ls147 10线-4线优先编码器74ls148 8线-3线八进制优先编码器74ls150 16选1数据选择器(反补输出)74ls151 8选1数据选择器(互补输出)74ls152 8选1数据选择器多路开关74ls153 双4选1数据选择器/多路选择器74ls154 4线-16线译码器74ls155 双2-4译码器/分配器(图腾柱输出)74ls156 双2-4译码器/分配器(集电极开路输出)74ls157 四2选1数据选择器/多路选择器74ls158 四2选1数据选择器(反相输出)74ls160 可预置bcd计数器(异步清除)74ls161 可预置四位二进制计数器(并清除异步)74ls162 可预置bcd计数器(异步清除)74ls163 可预置四位二进制计数器(并清除异步)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)74ls166 8位移位寄存器74ls167 同步十进制比率乘法器74ls168 4位加/减同步计数器(十进制)74ls169 同步二进制可逆计数器74ls170 4*4寄存器堆74ls171 四d触发器(带清除端)74ls172 16位寄存器堆74ls173 4位d型寄存器(带清除端)74ls174 六d触发器74ls175 四d触发器74ls176 十进制可预置计数器74ls177 2-8-16进制可预置计数器74ls178 四位通用移位寄存器74ls179 四位通用移位寄存器74ls180 九位奇偶产生/校验器74ls181 算术逻辑单元/功能发生器74ls182 先行进位发生器74ls183 双保留进位全加器74ls184 bcd-二进制转换器74ls185 二进制-bcd转换器74ls190 同步可逆计数器(bcd,二进制)74ls191 同步可逆计数器(bcd,二进制)74ls192 同步可逆计数器(bcd,二进制)74ls193 同步可逆计数器(bcd,二进制)74ls194 四位双向通用移位寄存器74ls195 四位通用移位寄存器74ls196 可预置计数器/锁存器74ls197 可预置计数器/锁存器(二进制)74ls198 八位双向移位寄存器74ls199 八位移位寄存器74ls210 2-5-10进制计数器74ls213 2-n-10可变进制计数器74ls221 双单稳触发器74ls230 八3态总线驱动器74ls231 八3态总线反向驱动器74ls240 八缓冲器/线驱动器/线接收器(反码三态输出)74ls241 八缓冲器/线驱动器/线接收器(原码三态输出)74ls242 八缓冲器/线驱动器/线接收器74ls243 4同相三态总线收发器74ls244 八缓冲器/线驱动器/线接收器74ls245 八双向总线收发器74ls246 4线-七段译码/驱动器(30v)74ls247 4线-七段译码/驱动器(15v)74ls248 4线-七段译码/驱动器74ls249 4线-七段译码/驱动器74ls251 8选1数据选择器(三态输出)74ls253 双四选1数据选择器(三态输出)74ls256 双四位可寻址锁存器74ls257 四2选1数据选择器(三态输出)74ls258 四2选1数据选择器(反码三态输出)74ls259 8为可寻址锁存器74ls260 双5输入或非门74ls261 4*2并行二进制乘法器74ls265 四互补输出元件74ls266 2输入四异或非门(oc)74ls270 2048位rom (512位四字节,oc)74ls271 2048位rom (256位八字节,oc)74ls273 八d触发器74ls274 4*4并行二进制乘法器74ls275 七位片式华莱士树乘法器74ls276 四jk触发器74ls278 四位可级联优先寄存器74ls279 四s-r锁存器74ls280 9位奇数/偶数奇偶发生器/较验器74ls28174ls283 4位二进制全加器74ls290 十进制计数器74ls291 32位可编程模74ls293 4位二进制计数器74ls294 16位可编程模74ls295 四位双向通用移位寄存器74ls298 四-2输入多路转换器(带选通)74ls299 八位通用移位寄存器(三态输出)74ls348 8-3线优先编码器(三态输出)74ls352 双四选1数据选择器/多路转换器74ls353 双4-1线数据选择器(三态输出)74ls354 8输入端多路转换器/数据选择器/寄存器,三态补码输出74ls355 8输入端多路转换器/数据选择器/寄存器,三态补码输出74ls356 8输入端多路转换器/数据选择器/寄存器,三态补码输出74ls357 8输入端多路转换器/数据选择器/寄存器,三态补码输出74ls365 6总线驱动器74ls366 六反向三态缓冲器/线驱动器74ls367 六同向三态缓冲器/线驱动器74ls368 六反向三态缓冲器/线驱动器74ls373 八d锁存器74ls374 八d触发器(三态同相)74ls375 4位双稳态锁存器74ls377 带使能的八d触发器74ls378 六d触发器74ls379 四d触发器74ls381 算术逻辑单元/函数发生器74ls382 算术逻辑单元/函数发生器74ls384 8位*1位补码乘法器74ls385 四串行加法器/乘法器74ls386 2输入四异或门74ls390 双十进制计数器74ls391 双四位二进制计数器74ls395 4位通用移位寄存器74ls396 八位存储寄存器74ls398 四2输入端多路开关(双路输出) 74ls399 四-2输入多路转换器(带选通)74ls422 单稳态触发器74ls423 双单稳态触发器74ls440 四3方向总线收发器,集电极开路74ls441 四3方向总线收发器,集电极开路74ls442 四3方向总线收发器,三态输出74ls443 四3方向总线收发器,三态输出74ls444 四3方向总线收发器,三态输出74ls445 bcd-十进制译码器/驱动器,三态输出74ls446 有方向控制的双总线收发器74ls448 四3方向总线收发器,三态输出74ls449 有方向控制的双总线收发器74ls465 八三态线缓冲器74ls466 八三态线反向缓冲器74ls467 八三态线缓冲器74ls468 八三态线反向缓冲器74ls490 双十进制计数器74ls540 八位三态总线缓冲器(反向)74ls541 八位三态总线缓冲器74ls589 有输入锁存的并入串出移位寄存器74ls590 带输出寄存器的8位二进制计数器74ls591 带输出寄存器的8位二进制计数器74ls592 带输出寄存器的8位二进制计数器74ls593 带输出寄存器的8位二进制计数器74ls594 带输出锁存的8位串入并出移位寄存器74ls595 8位输出锁存移位寄存器74ls596 带输出锁存的8位串入并出移位寄存器74ls597 8位输出锁存移位寄存器74ls598 带输入锁存的并入串出移位寄存器74ls599 带输出锁存的8位串入并出移位寄存器74ls604 双8位锁存器74ls605 双8位锁存器74ls606 双8位锁存器74ls607 双8位锁存器74ls620 8位三态总线发送接收器(反相)74ls621 8位总线收发器74ls622 8位总线收发器74ls623 8位总线收发器74ls640 反相总线收发器(三态输出)74ls641 同相8总线收发器,集电极开路74ls642 同相8总线收发器,集电极开路74ls643 8位三态总线发送接收器74ls644 真值反相8总线收发器,集电极开路74ls645 三态同相8总线收发器74ls646 八位总线收发器,寄存器74ls647 八位总线收发器,寄存器74ls648 八位总线收发器,寄存器74ls649 八位总线收发器,寄存器74ls651 三态反相8总线收发器74ls652 三态反相8总线收发器74ls653 反相8总线收发器,集电极开路74ls654 同相8总线收发器,集电极开路74ls668 4位同步加/减十进制计数器74ls669 带先行进位的4位同步二进制可逆计数器74ls670 4*4寄存器堆(三态)74ls671 带输出寄存的四位并入并出移位寄存器74ls672 带输出寄存的四位并入并出移位寄存器74ls673 16位并行输出存储器,16位串入串出移位寄存器74ls674 16位并行输入串行输出移位寄存器74ls681 4位并行二进制累加器74ls682 8位数值比较器(图腾柱输出)74ls683 8位数值比较器(集电极开路)74ls684 8位数值比较器(图腾柱输出)74ls685 8位数值比较器(集电极开路)74ls686 8位数值比较器(图腾柱输出)74ls687 8位数值比较器(集电极开路)74ls688 8位数字比较器(oc输出)74ls689 8位数字比较器74ls690 同步十进制计数器/寄存器(带数选,三态输出,直接清除)74ls691 计数器/寄存器(带多转换,三态输出)74ls692 同步十进制计数器(带预置输入,同步清除)74ls693 计数器/寄存器(带多转换,三态输出)74ls696 同步加/减十进制计数器/寄存器(带数选,三态输出,直接清除) 74ls697 计数器/寄存器(带多转换,三态输出)74ls698 计数器/寄存器(带多转换,三态输出)74ls699 计数器/寄存器(带多转换,三态输出)74ls716 可编程模n十进制计数器74ls718 可编程模n十进制计数器相关阅读：•[单片机] 74HC595驱动LED的电路设计方案 2012-10-14•[RF/无线] 一种基于VXI总线的射频开关模块设计 2012-09-19•[光电驱动电路] 74HC595芯片驱动LED的电路设计 2012-08-08 •[555集成电路大全] 普通电灯泡产生烛光的简单电路 2012-03-29 •[遥控电路图] 74LS74构成的遥控电路 2011-11-28•[照明灯电路图] SN74LS74构成的红外遥控开关灯电路 2011-11-28 •[模拟技术] 74HC240制作寻光机器人 2011-11-26•[单片机] 74HC595驱动led单色点阵屏程序 2011-07-24( 发表人：S&W)相关下载•74LS175键盘电路0•74hc573中文资料pdf51•LED显示屏常用芯片简介(74HC138_74HC245_74HC595_4953_T70•74LS42译码器英文资料6•74HC系列通用逻辑电路功能表24•74HC245中文资料101•74HC4851资料7•用74LS148扩展中断4阅读排行78040 la7840各引脚功能及电压资料 01-162.VGA线接法详细介绍 12-213.三极管s8050管脚图及参数 01-234.lm324引脚图管脚图 lm324应用电路 12-085.电脑串口引脚定义图 01-246.RS485接口定义图 04-04b接口接线图 05-038.mini usb 接口定义 5针usb接口定义图 04-279.15针VGA接口定义图 11-2710.自制vga转s端子接线图 01-21热门词LED FPGA DSP DIY CMOS3G电路图IC CPLD开关电源。

HD74LS273P中文资料

HD74LS273Octal D-type Positive-edge-triggered Flip-Flops (with Clear)REJ03D0473–0300Rev.3.00 Jul.15.2005The HD74LS273, positive-edge-triggered flip-flops utilize LS TTL circuitry to implement D-type flip-flop logic with a direct clear input.Information at the D inputs meeting the setup time requirements is transferred to the Q outputs on the positive-going edge of the clock pulse.When the clock input is at either the high or low level, the D input signal has no effect at the output.Features• Ordering InformationPart NamePackage TypePackage Code (Previous Code) PackageAbbreviationTaping Abbreviation (Quantity)HD74LS273P DILP-20 pin PRDP0020AC-B (DP-20NEV) P — HD74LS273FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20DAV)FPEL (2,000 pcs/reel) HD74LS273RPEL SOP-20 pin (JEDEC)PRSP0020DC-A(FP-20DBV)RPEL (1,000 pcs/reel)Note: Please consult the sales office for the above package availability.Pin ArrangementFunction TableInputs Output Clear Clock D QL X X LH ↑ H HH ↑ L LH L X Q0Notes: H; high level, L; low level, X; irrelevant↑; transition from low to high levelQ0; level of Q before the indicated steady-state input conditions were established.Block DiagramAbsolute Maximum RatingsUnitRatingsItem SymbolSupply voltage V CC 7 VInput voltage V IN 7 VPower dissipation P T 400 mWStorage temperature Tstg –65 to +150 °CNote: Voltage value, unless otherwise noted, are with respect to network ground terminal.Recommended Operating ConditionsMaxTypUnitMinItem SymbolSupply voltage V CC 4.75 5.00 5.25 VI OH — — –400 µAOutput currentI OL — — 8 mA°C75Operating temperature Topr25–20Clock frequency ƒclock 0 — 30 MHzClock pulse width t w (clock) 20 — — nsClear pulse width t w (clear) 20 — — nsData setup time t su (data) 20↑ — — nsClear (inactive-state) setup time t su (clear) 25↑ — — nsData hold time t h (data)5↑ — — nsElectrical Characteristics(Ta = –20 to +75 °C)Item Symbol min. typ.* max. UnitConditionV IH 2.0 — — VInput voltageV IL — — 0.8 VV OH 2.7 — — VV CC = 4.75 V, V IH = 2 V, V IL = 0.8 V,I OH = –400 µA— — 0.5 I OL = 8 mA Output voltageV OL — — 0.4 VI OL = 4 mA V CC = 4.75 V, V IH = 2 V,V IL = 0.8 VI IH — 20 µA V CC = 5.25 V, V I = 2.7 V I IL — –0.4 mA V CC = 5.25 V, V I = 0.4 VInput currentI I —0.1 mA V CC = 5.25 V, V I = 7 V Short-circuit output currentI OS –20 — –100 mA V CC = 5.25 V Supply currentI CC ** — 17 27 mA V CC = 5.25 V Input clamp voltage VIK — — –1.5 V V CC = 4.75 V, I IN = –18 mANotes: * V CC = 5 V, Ta = 25°C ** With all outputs open and 4.5 V applied to all data and clear inputs, I CC is measured after a momentaryground, then 4.5 V is applied to clock.Switching Characteristics(V CC = 5 V, Ta = 25°C)Item Symbol Inputs min. typ. max. Unit ConditionMaximum clock frequency ƒmax Clock 30 40 — MHzt PHL Clear — 18 27t PLH — 17 27Propagation delay time t PHL Clock— 18 27 ns C L = 15 pF, R L = 2 k ΩTesting MethodTest CircuitWaveforms 1Waveforms 2Package Dimensions RENESAS SALES OFFICESRefer to "/en/network" for the latest and detailed information.Renesas Technology America, Inc.450 Holger Way, San Jose, CA 95134-1368, U.S.ATel: <1> (408) 382-7500, Fax: <1> (408) 382-7501Renesas Technology Europe LimitedDukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, U.K.Tel: <44> (1628) 585-100, Fax: <44> (1628) 585-900Renesas Technology Hong Kong Ltd.7th Floor, North Tower, World Finance Centre, Harbour City, 1 Canton Road, Tsimshatsui, Kowloon, Hong KongTel: <852> 2265-6688, Fax: <852> 2730-6071Renesas Technology Taiwan Co., Ltd.10th Floor, No.99, Fushing North Road, Taipei, TaiwanTel: <886> (2) 2715-2888, Fax: <886> (2) 2713-2999Renesas Technology (Shanghai) Co., Ltd.Unit2607 Ruijing Building, No.205 Maoming Road (S), Shanghai 200020, ChinaTel: <86> (21) 6472-1001, Fax: <86> (21) 6415-2952Renesas Technology Singapore Pte. Ltd.1 Harbour Front Avenue, #06-10, Keppel Bay Tower, Singapore 098632Tel: <65> 6213-0200, Fax: <65> 6278-8001Renesas Technology Korea Co., Ltd.Kukje Center Bldg. 18th Fl., 191, 2-ka, Hangang-ro, Yongsan-ku, Seoul 140-702, KoreaTel: <82> 2-796-3115, Fax: <82> 2-796-2145Renesas Technology Malaysia Sdn. Bhd.Unit 906, Block B, Menara Amcorp, Amcorp Trade Centre, No.18, Jalan Persiaran Barat, 46050 Petaling Jaya, Selangor Darul Ehsan, MalaysiaTel: <603> 7955-9390, Fax: <603> 7955-9510。

74ls20工作原理

74ls20工作原理
74LS20是一种集成电路，也被称为逻辑门，它由两个输入和一个输出组成。

这个逻辑门本质上是一个“NAND”门，它接受两个输入并将它们的逻辑进行“与非”运算，然后输出结果。

74LS20的工作原理如下：
1. 输入：该逻辑门有两个输入端口，标记为A和B。

这些端口接收电压信号，其中高电平表示“1”，低电平表示“0”。

2. 运算：当逻辑门的两个输入都是高电平（即1）时，它将输出低电平（即0），否则它将输出高电平（即1）。

3. 输出：该逻辑门只有一个输出端口，标记为Y。

输出信号的电压与输入信号一样，高电平表示“1”，低电平表示“0”。

4. 稳定性：74LS20的操作速度非常快，通常在纳秒级别。

它还具有较低的功耗和高噪音容限，使其在数字电路中非常常见。

总之，74LS20是一种非常常见的数字逻辑门，它采用“与非”逻辑运算，用于将两个输入信号进行处理从而得到输出电平。

这个逻辑门在电子设备和计算机技术中应用广泛。