74系列数字集成电路作用说明

74系列数字集成电路作用说明时间：2009-02-2721:38:20来源：资料室作者：7400TTL2输入端四NAND7401TTL集电极开路2输入端四NAND7402TTL2输入端四NOR7403TTL集电极开路2输入端四NAND7404TTL六反相器7405TTL集电极开路六反相器7406TTL集电极开路六反相高压驱动器7407TTL集电极开路六正相高压驱动器7408TTL2输入端四AND7409TTL集电极开路2输入端四AND7410TTL3输入端3NAND7411TTL3输入端3AND7412TTL开路输出3输入端三NAND7413TTL4输入端双NOR施密特触发器7414TTL六反相施密特触发器7415TTL开路输出3输入端三AND7416TTL开路输出六反相缓冲/驱动器7417TTL开路输出六同相缓冲/驱动器7420TTL4输入端双NAND7421TTL4输入端双AND7422TTL开路输出4输入端双NAND7427TTL3输入端三NOR7428TTL2输入端四NOR缓冲器7430TTL8输入端NAND7432TTL2输入端四OR7433TTL开路输出2输入端四NOR缓冲器7437TTL开路输出2输入端四NOR缓冲器7438TTL开路输出2输入端四NOR缓冲器7439TTL开路输出2输入端四NOR缓冲器7440TTL4输入端双NOR缓冲器7442TTL BCD—十进制代码转换器7445TTL BCD—十进制代码转换/驱动器7446TTL BCD—7段低有效译码/驱动器7447TTL BCD—7段高有效译码/驱动器7448TTL BCD—7段译码器/内部上拉输出驱动7450TTL2-3/2-2输入端双与NOR7451TTL2-3/2-2输入端双与NOR7454TTL四路输入与NOR7455TTL4输入端二路输入与NOR7473TTL带清除负触发双J-K触发器7474TTL带置位复位正触发双D触发器7476TTL带预置清除双J-K触发器7483TTL四位二进制快速进位全加器7485TTL四位数字比较器7486TTL2输入端四XOR7490TTL可二/五分频十进制计数器7493TTL可二/八分频二进制计数器7495TTL四位并行输入输出移位寄存器7497TTL6位同步二进制乘法器74107TTL带清除主从双J-K触发器74109TTL带预置清除正触发双J-K触发器74112TTL带预置清除负触发双J-K触发器74121TTL单稳态多谐振荡器74122TTL可再触发单稳态多谐振荡器74123TTL双可再触发单稳态多谐振荡器74125TTL三态输出高有效四总线缓冲门74126TTL三态输出低有效四总线缓冲门74132TTL2输入端四NOR施密特触发器74133TTL13输入端NAND74136TTL四XOR74138TTL3-8线译码器/复工器74139TTL双2-4线译码器/复工器74145TTL BCD—十进制译码/驱动器74150TTL16选1数据选择/多路开关74151TTL8选1数据选择器74153TTL双4选1数据选择器74154TTL4线—16线译码器74155TTL图腾柱输出译码器/分配器74156TTL开路输出译码器/分配器74157TTL同相输出四2选1数据选择器74158TTL反相输出四2选1数据选择器74160TTL可预置BCD异步清除计数器74161TTL可予制四位二进制异步清除计数器74162TTL可预置BCD同步清除计数器74163TTL可予制四位二进制同步清除计数器74164TTL八位串行入/并行输出移位寄存器74165TTL八位并行入/串行输出移位寄存器74166TTL八位并入/串出移位寄存器74169TTL二进制四位加/减同步计数器74170TTL开路输出4×4寄存器堆74173TTL三态输出四位D型寄存器74174TTL带公共时钟和复位六D触发器74175TTL带公共时钟和复位四D触发器74180TTL9位奇数/偶数发生器/校验器74181TTL算术逻辑单元/函数发生器74185TTL二进制—BCD代码转换器74190TTL BCD同步加/减计数器74191TTL二进制同步可逆计数器74192TTL可预置BCD双时钟可逆计数器74193TTL可预置四位二进制双时钟可逆计数器74194TTL四位双向通用移位寄存器74195TTL四位并行通道移位寄存器74196TTL十进制/二-十进制可预置计数锁存器74197TTL二进制可预置锁存器/计数器74221TTL双/单稳态多谐振荡器74240TTL八反相三态缓冲器/线驱动器74241TTL八同相三态缓冲器/线驱动器74243TTL四同相三态总线收发器74244TTL八同相三态缓冲器/线驱动器74245TTL八同相三态总线收发器74247TTL BCD—7段15V输出译码/驱动器74248TTL BCD—7段译码/升压输出驱动器74249TTL BCD—7段译码/开路输出驱动器74251TTL三态输出8选1数据选择器/复工器74253TTL三态输出双4选1数据选择器/复工器74256TTL双四位可寻址锁存器74257TTL三态原码四2选1数据选择器/复工器74258TTL三态反码四2选1数据选择器/复工器74259TTL八位可寻址锁存器/3-8线译码器74260TTL5输入端双NOR74266TTL2输入端四异NOR74273TTL带公共时钟复位八D触发器74279TTL四图腾柱输出S-R锁存器74283TTL4位二进制全加器74290TTL二/五分频十进制计数器74293TTL二/八分频四位二进制计数器74295TTL四位双向通用移位寄存器74298TTL四2输入多路带存贮开关74299TTL三态输出八位通用移位寄存器74322TTL带符号扩展端八位移位寄存器74323TTL三态输出八位双向移位/存贮寄存器74347TTL BCD—7段译码器/驱动器74352TTL双4选1数据选择器/复工器74352TTL双4选1数据选择器/复工器74353TTL三态输出双4选1数据选择器/复工器74353TTL三态输出双4选1数据选择器/复工器74365TTL门使能输入三态输出六同相线驱动器74366TTL门使能输入三态输出六反相线驱动器74367TTL4/2线使能输入三态六同相线驱动器74368TTL4/2线使能输入三态六反相线驱动器74373TTL三态同相八D锁存器反相八D锁存器74374TTL三态反相八D锁存器74375TTL4位双稳态锁存器74377TTL单边输出公共使能八D锁存器74378TTL单边输出公共使能六D锁存器74HC/L S/H C T/F系列芯片的区别及使用一、74HC/LS/HCT/F系列芯片的区别：1、LS是低功耗肖特基，HC是高速COMS。

LS的速度比HC略快。

HCT输入输出与LS兼容，但是功耗低；F是高速肖特基电路；2、LS是TTL电平，HC是COMS电平。

3、LS输入开路为高电平，HC输入不允许开路，hc一般都要求有上下拉电阻来确定输入端无效时的电平。

LS却没有这个要求4、LS输出下拉强上拉弱，HC上拉下拉相同。

5、工作电压不同，LS只能用5V，而HC一般为2V到6V；6、电平不同。

LS是TTL电平，其低电平和高电平分别为0.8和V2.4，而CMOS在工作电压为5V时分别为0.3V和3.6V，所以CMOS可以驱动TTL，但反过来是不行的7、驱动能力不同，LS一般高电平的驱动能力为5mA，低电平为20mA；而CMOS的高低电平均为5mA；8、CMOS器件抗静电能力差，易发生栓锁问题，所以CMOS的输入脚不能直接接电源。

74系列集成电路大致可分为6大类：.74××（标准型）；.74LS××（低功耗肖特基）；.74S××（肖特基）；.74ALS××（先进低功耗肖特基）；.74AS××（先进肖特基）；.74F××（高速）。

近年来还出现了高速CMOS电路的74系列，该系列可分为3大类：.HC为COMS工作电平；.HCT为TTL工作电平，可与74LS系列互换使用；.HCU适用于无缓冲级的CMOS电路。

这9种74系列产品，只要后边的标号相同，其逻辑功能和管脚排列就相同。

根据不同的条件和要求可选择不同类型的74系列产品，比如电路的供电电压为3V就应选择74HC系列的产品系列电平典型传输延迟ns最大驱动电流(-Ioh/Lol)mA AHC CMOS8.5-8/8AHCT COMS/TTL8.5-8/8HC COMS25-8/8HCT COMS/TTL25-8/8ACT COMS/TTL10-24/24F TTL6.5-15/64ALS TTL10-15/64LS TTL18-15/24LVCACSLC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。

7400QUAD2-INPUT NAND GATES与非门7401QUAD2-INPUT NAND GATES OC与非门7402QUAD2-INPUT NOR GATES或非门7403QUAD2-INPUT NAND GATES与非门7404HEX INVERTING GATES反向器7406HEX INVERTING GATES HV高输出反向器7408QUAD2-INPUT AND GATE与门7409QUAD2-INPUT AND GATES OC与门7410TRIPLE3-INPUT NAND GATES与非门7411TRIPLE3-INPUT AND GATES与门74121ONE-SHOT WITH CLEAR单稳态74132SCHMITT TRIGGER NAND GATES触发器与非门7414SCHMITT TRIGGER INVERTERS触发器反向器741534-LINE TO1LINE SELECTOR四选一741552-LINE TO4-LINE DECODER译码器74180PARITY GENERATOR/CHECKER奇偶发生检验741914-BIT BINARY COUNTER UP/DOWN计数器7420DUAL4-INPUT NAND GATES双四输入与非门7426QUAD2-INPUT NAND GATES与非门7427TRIPLE3-INPUT NOR GATES三输入或非门74308-INPUT NAND GATES八输入端与非门7432QUAD2-INPUT OR GATES二输入或门74382-INPUT NAND GATE BUFFER与非门缓冲器7445BCD-DECIMAL DECODER/DRIVER BCD译码驱动器7474D-TYPE FLIP-FLOP D型触发器7475QUAD LATCHES双锁存器7476J-K FLIP-FLOP J-K触发器74854-BIT MAGNITUDE COMPARATOR四位比较器74862-INPUT EXCLUSIVE OR GATES双端异或门74HC00QUAD2-INPUT NAND GATES双输入与非门74HC02QUAD2-INPUT NOR GATES双输入或非门74HC032-INPUT OPEN-DRAIN NAND GATES与非门74HC04HEX INVERTERS六路反向器74HC05HEX INVERTERS OPEN DRAIN六路反向器74HC082-INPUT AND GATES双输入与门74HC107J-K FLIP-FLOP WITH CLEAR J-K触发器74HC109A J-K FLIP-FLOP W/PRESET J-K触发器74HC11TRIPLE3-INPUT AND GATES三输入与门74HC112DUAL J-K FLIP-FLOP双J-K触发器74HC113DUAL J-K FLIP-FLOP PRESET双JK触发器74HC123A RETRIGGERABLE MONOSTAB可重触发单稳74HC125TRI-STATE QUAD BUFFERS四个三态门74HC126TRI-STATE QUAD BUFFERS六三态门74HC1322-INPUT TRIGGER NAND施密特触发与非门74HC13313-INPUT NAND GATES十三输入与非门74HC1373-TO-8DECODERS W/LATCHES3-8线译码器74HC1383-8LINE DECODER3线至8线译码器74HC1392-4LINE DECODER2线至4线译码器74HC14TRIGGERED HEX INVERTER六触发反向器74HC14710-4LINE PRIORITY ENCODER10-4编码器74HC1488-3LINE PRIORITY ENCODER8-3编码器74HC1498-8LINE PRIORITY ENCODER8-8编码器74HC1518-CHANNEL DIGITAL MUX8通道多路器74HC153DUAL4-INPUT MUX双四输入多路器74HC1544-16LINE DECODER4线至16线译码器74HC1552-4LINE DECODER2线至4线译码器74HC157QUAD2-INPUT MUX四个双端多路器74HC161BINARY COUNTER二进制计数器74HC163DECADE COUNTERS十进制计数器74HC164SERIAL-PARALLEL SHIFT REG串入并出74HC165PARALLEL-SERIAL SHIFT REG并入串出74HC166SERIAL-PARALLEL SHIFT REG串入并出74HC173TRI-STATE D FLIP-FLOP三态D触发器74HC174HEX D FLIP-FLOP W/CLEAR六D触发器74HC175HEX D FLIP-FLOP W/CLEAR六D触发器74HC181ARITHMETIC LOGIC UNIT算术逻辑单元74HC182LOOK AHEAD CARRYGENERATR进位发生器74HC190BINARY UP/DN COUNTER二进制加减计数器74HC191DECADE UP/DN COUNTER十进制加减计数器74HC192DECADE UP/DN COUNTER十进制加减计数器74HC193BINARY UP/DN COUNTER二进制加减计数器74HC1944BIT BI-DIR SHIFT4位双向移位寄存器74HC1954BIT PARALLEL SHIFT4位并行移位寄存器74HC20QUAD4-INPUT NAND GATE四个四入与非门74HC221A NON-RETRIG MONOSTAB不可重触发单稳74HC2373-8LINE DECODER地址锁3线至8线译码器74HC242/243TRI-STAT TRANSCEIVER三态收发器74HC244OCTAL3-STATE BUFFER八个三态缓冲门74HC245OCTAL3-STATE TRANSCEIVER三态收发器74HC2518-CH3-STATE MUX8路3态多路器74HC253DUAL4-CH3-STATE MUX4路3态多路器74HC257QUAD2-CH3-STATE MUX4路3态多路器74HC2582-CH3-STATE MUX2路3态多路器74HC2593-8LINE DECODER8位地址锁存译码器74HC266A2-INPUT EXCLUSIVE NOR GATE异或非74HC27TRIPLE3-INPUT NOR GATE三个3输入或非门74HC273OCTAL D FLIP-FLOP CLEAR8路D触发器74HC2809BIT ODD/EVEN GENERATOR奇偶发生器74HC2834BIT BINARY ADDER CARRY四位加法器74HC2993-STATE UNIVERSAL SHIFT三态移位寄存74HC308-INPUT NAND GATE8输入端与非门74HC32QUAD2-INPUT OR GATE四个双端或门74HC34NON-INVERTER非反向器74HC3548-CH3-STATE MUX8路3态多路器74HC3568-CH3-STATE MUX8路3态多路器74HC365HEX3-STATE BUFFER六个三态缓冲门74HC3663-STATE BUFFER INVERTER缓冲反向器74HC3673-STATE BUFFER INVERTER缓冲反向器74HC3683-STATE BUFFER INVERTER缓冲反向器74HC3733-STATE OCTAL D LATCHES三态D型锁存器74HC3743-STATE OCTAL D FLIPFLOP三态D触发器74HC3934-BIT BINARY COUNTER4位二进制计数器74HC4016QUAD ANALOG SWITCH四路模拟量开关74HC402014-Stage Binary Counter14输出计数器74HC4017Decade Counter/Divider with10Decoded Outputs 十进制计数器带10个译码输出端74HC404012Stage Binary Counter12出计数器74HC4046PHASE LOCK LOOP相位监测输出器74HC4049LEVEL DOWN CONVERTER电平变低器74HC4050LEVEL DOWN CONVERTER电平变低器74HC40518-CH ANALOG MUX8通道多路器74HC40524-CH ANALOG MUX4通道多路器74HC40532-CH ANALOG MUX2通道多路器74HC406014-STAGE BINARY COUNTER14阶BIN计数74HC4066QUAD ANALOG MUX四通道多路器74HC4075TRIPLE3-INPUT OR GATE3输入或门74HC42BCD TO DECIMAL BCD转十进制译码器74HC423A RETRIGGERABLE MONOSTAB可重触发单稳74HC4511BCD-7SEG DRIVER/DECODER7段译码器74HC45144-16LINE DECODER4至16线译码器74HC4538A RETRIGGERAB MONOSTAB可重触发单稳74HC4543LCD BCD-7SEG LCD用的BCD-7段译码驱动74HC51AND OR GATE INVERTER与或非门74HC5218BIT MAGNITUDE COMPARATOR判决定路74HC5333-STATE D LATCH三态D锁存器74HC5343-STATE D FLIP-FLOP三态D型触发器74HC5403-STATE BUFFER三态缓冲器74HC5413-STATE BUFFER INVERTER三态缓冲反向器74HC58DUAL AND OR GATE与或门74HC5893STATE8BIT SHIFT8位移位寄存三态输出74HC5948BIT SHIFT REG8位移位寄存器74HC5958BIT SHIFT REG8位移位寄存器出锁存74HC5978BIT SHIFT REG8位移位寄存器入锁存74HC6203-STATE TRANSCEIVER反向3态收发器74HC6233-STATE TRANSCEIVER八路三态收发器74HC6403-STATE TRANSCEIVER反向3态收发器74HC6433-STATE TRANSCEIVER八路三态收发器74HC646NON-INVERT BUS TRANSCEIVER总线收发器74HC648INVERT BUS TRANCIVER反向总线收发器74HC6888BIT MAGNITUDE COMPARATOR8位判决电路74HC72662-INPUT EXCLUSIVE NOR GATE异或非门74HC73DUAL J-K FLIP-FLOP W/CLEAR双JK触发器74HC74A PRESET/CLEAR D FLIP-FLOP双D触发器74HC754BIT BISTABLE LATCH4位双稳锁存器74HC76PRESET/CLEAR JK FLIP-FLOP双JK触发器74HC854BIT MAGNITUDE COMPARATOR4位判决电路74HC862INPUT EXCLUSIVE OR GATE2输入异或门74HC942BAUD MODEM300BPS低速调制解调器74HC943300BAUD MODEM300BPS低速调制解调器74LS00QUAD2-INPUT NAND GATES与非门74LS02QUAD2-INPUT NOR GATES或非门74LS03QUAD2-INPUT NAND GATES与非门74LS04HEX INVERTING GATES反向器74LS05HEX INVERTERS OPEN DRAIN六路反向器74LS08QUAD2-INPUT AND GATE与门74LS09QUAD2-INPUT AND GATES OC与门74LS10TRIPLE3-INPUT NAND GATES与非门74LS109QUAD2-INPUT AND GATES OC与门74LS11TRIPLE3-INPUT AND GATES与门74LS113DUAL J-K FLIP-FLOP PRESET双JK触发器74LS114NEGATIVE J-K FLIP-FLOP负沿J-K触发器74LS122Retriggerable Monostab可重触发单稳74LS123Retriggerable Monostable可重触发单稳74LS125TRI-STATE QUAD BUFFERS四个三态门74LS13QUAL4-in NAND TRIGGER4输入与非触发器74LS160BCD DECADE4BIT BIN COUNTERS计数器74LS136QUADRUPLE2-INPUT XOR GATE异或门74LS1383-8LINE DECODER3线至8线译码器74LS1392-4LINE DECODER2线至4线译码器74LS14TRIGGERED HEX INVERTER六触发反向器74HC14710-4LINE PRIORITY ENCODER10-4编码器74HC1488-3LINE PRIORITY ENCODER8-3编码器74HC1498-8LINE PRIORITY ENCODER8-8编码器74LS1518-CHANNEL DIGITAL MUX8通道多路器74LS153DUAL4-INPUT MUX双四输入多路器74LS1552-4LINE DECODER2线至4线译码器74LS1562-4LINE DECODER/DEMUX2-4译码器74LS157QUAD2-INPUT MUX四个双端多路器74LS1582-1LINE MUX2-1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74LS164SERIAL-PARALLEL SHIFT REG串入并出74LS168BI-DIRECT BCD TO DECADE双向计数器74LS1694BIT UP/DN BIN COUNTER四位加减计数器74LS173TRI-STATE D FLIP-FLOP三态D触发器74LS174HEX D FLIP-FLOP W/CLEAR六D触发器74LS190BINARY UP/DN COUNTER二进制加减计数器74LS191DECADE UP/DN COUNTER十进制加减计数器74LS192DECADE UP/DN COUNTER十进制加减计数器74LS193BINARY UP/DN COUNTER二进制加减计数器74LS194A4BIT BI-DIR SHIFT4位双向移位寄存器74LS195A4BIT PARALLEL SHIFT4位并行移位寄存器74LS20QUAD4-INPUT NAND GATE四个四入与非门74LS214-INPUT AND GATE四输入端与门74LS240OCTAL3-STATE BUFFER八个三态缓冲门74LS244OCTAL3-STATE BUFFER八个三态缓冲门74LS245OCTAL3-STATE TRANSCEIVER三态收发器74LS253DUAL4-CH3-STATE MUX4路3态多路器74LS2564BIT ADDRESS LATCH四位可锁存锁存器74LS257QUAD2-CH3-STATE MUX4路3态多路器74LS2582-CH3-STATE MUX2路3态多路器74LS27TRIPLE3-INPUT NOR GATES三输入或非门74LS279QUAD R-S LATCHES四个RS非锁存器74LS28QUAD2-INPUT NOR BUFFER四双端或非缓冲74LS2834BIT BINARY ADDER CARRY四位加法器74LS308-INPUT NAND GATES八输入端与非门74LS32QUAD2-INPUT OR GATES二输入或门74LS3524-1LINE SELECTOR/MUX4-1线选择多路器74LS365HEX3-STATE BUFFER六个三态缓冲门74LS3673-STATE BUFFER INVERTER缓冲反向器74LS368A3-STATE BUFFER INVERTER缓冲反向器74LS373OCT LATCH W/3-STATE OUT三态输出锁存器74LS76Dual JK Flip-Flop w/set2个JK触发器74LS379QUAD PARALLEL REG四个并行寄存器74LS382-INPUT NAND GATE BUFFER与非门缓冲器74LS390DUAL DECADE COUNTER2个10进制计数器74LS393DUAL BINARY COUNTER2个2进制计数器74LS42BCD TO DECIMAL BCD转十进制译码器74LS48BCD-7SEG BCD-7段译码器74LS49BCD-7SEG BCD-7段译码器74LS51AND OR GATE INVERTER与或非门74LS540OCT Buffer/Line Driver8路缓冲驱动器74LS541OCT Buffer/LineDriver8路缓冲驱动器74LS74D-TYPE FLIP-FLOP D型触发器74LS6828BIT MAGNITUDE COMPARATOR8路比较器74LS6848BIT MAGNITUDE COMPARATOR8路比较器74LS75QUAD LATCHES双锁存器74LS83A4BIT BINARY ADDER CARRY四位加法器74LS854BIT MAGNITUDE COMPARAT4位判决电路74LS862INPUT EXCLUSIVE OR GATE2输入异或门74LS90DECADE/BINARY COUNTER十/二进制计数器74LS95B4BIT RIGHT/LEFT SHIFT4位左右移位寄存74LS6888BIT MAGNITUDE COMPARAT8位判决电路74LS1362-INPUT XOR GATE2输入异或门74LS651BUS TRANSCEIVERS总线收发器74LS653BUS TRANSCEIVERS总线收发器74LS6703-STATE4-BY-4REG3态4-4寄存器74LS73A DUAL J-K FLIP-FLOP W/CLEAR双JK触发器二、TTL和CMOS器件的功能分类：按功能进行划分，逻辑器件可以大概分为以下几类：门电路和反相器、选择器、译码器、计数器、寄存器、触发器、锁存器、缓冲驱动器、收发器、总线开关、背板驱动器等。