74HC系列资料查询（一）
型 号功 能
74HC253双4选1数据选择器（三态）
74HC257四2选1数据选择器（三态）
74HC2598位可寻址锁存器
74HC266四2输入异或非门（OC）
74HC273八D型触发器（带清除端）
74HC279四R—S锁存器
74HC2809位奇偶数产生器/校验器
74HC2834位二进制全加器（带超前进位）
74HC2984位2选1数据选择器
74HC365六缓冲器/总线驱动（同相）
74HC366六缓冲器/总线驱动（反相）
74HC367六缓冲器/总线驱动（同相）
74HC368六缓冲器/总线驱动（反相）
74HC373八D触发器（三态）
74HC374八D触发器（三态）
74HC377八D触发器
74HC386四2输入异或门
74HC390双4位十进制计数器
74HC393双4位二进制计数器（异步清除）
74HC540八缓冲器/总线驱动器
74HC541八缓冲器/总线驱动器
74HC573八D锁存器（三态）
74HC574八D锁存器（三态）
74HC5898位输入锁存输出移位寄存器
74HC5958位输出锁存移位寄存器
74HC6888位数值比较器/等值检测器
74HC4002从4输入或非门
74HC4015双4位串入并出移位寄存器
74HC4017十进制计数器/分配器
74HC404012位二进制串行计数器
74HC4046锁相环
74HC4049六缓冲器/电平变换器（反相）
74HC4050六缓冲器/电平变换器（同相）
74HC4051单8通道模拟开关
74HC4052双4通道摸拟开关
74HC4053三2通道模拟开关
74HC406014位二进制串行计数器
74HC4066四双向模拟开关
74HC4520双二进制加法计数器
74HC4538双精密单稳态触发器
74HC45437段锁存/译码/驱动器
74HC4551四2通道模拟开关
74HC132四2输入与非施密特触发器74HC1383—8线译码器/多路转换器
74HC139双2—4线译码器/多路转换器
© 2000 Fairchild Semiconductor CorporationDS010955
September 1991Revised January 200074ACTQ18825 18-Bit Buffer/Line Driver with 3-STATE Outputs
74ACTQ1882518-Bit Buffer/Line Driver with 3-STATE OutputsGeneral DescriptionThe ACTQ18825 contains eighteen non-inverting bufferswith 3-STATE outputs designed to be employed as a mem-ory and address driver, clock driver, or bus oriented trans-mitter/receiver. The device is byte controlled. Each bytehas separate 3-STATE control inputs which can be shortedtogether for full 18-bit operation.The ACTQ18825 utilizes Fairchild FACT Quiet Series™technology to guarantee quiet output switching andimproved dynamic threshold performance. FACT QuietSeries features GTO™ output control and undershoot cor-rector for superior performance.FeaturessUtilizes Fairchild FACT Quiet Series technologysBroadside pinout allows for easy board layoutsGuaranteed simultaneous switching noise level anddynamic threshold performancesGuaranteed pin-to-pin output skewsSeparate control logic for each bytesExtra data width for wider address/data paths or busescarrying paritysOutputs source/sink 24 mAsAdditional specs for Multiple Output SwitchingsOutput loading specs for both 50 pF and 250 pF loads Ordering Code:
FEATURES
DW OR NS PACKAGE
(TOP VIEW)1
2
3
4
5
6
7
8
9
1020
19
18
17
16
15
14
13
12
111OE
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GNDVCC2OE
1Y1
2A4
1Y2
2A3
1Y3
2A2
1Y42A1
DESCRIPTION/ORDERINGINFORMATIONSN74ACT244-EP
OCTALBUFFER/DRIVER
WITH3-STATEOUTPUTS
SCAS724B–OCTOBER2003–REVISEDMARCH2006
•ControlledBaseline
–OneAssembly/TestSite,OneFabrication
Site
•ExtendedTemperaturePerformanceofupto
–55°Cto125°C
•EnhancedDiminishingManufacturing
Sources(DMS)Support
•EnhancedProduct-ChangeNotification
•QualificationPedigree(1)
•4.5-Vto5.5-VVCCOperation
•InputsAcceptVoltagesto5.5V
•Maxtpdof9.5nsat5V
•InputsAreTTLCompatible
(1)ComponentqualificationinaccordancewithJEDECand
industrystandardstoensurereliableoperationoveran
extendedtemperaturerange.Thisincludes,butisnotlimited
to,HighlyAcceleratedStressTest(HAST)orbiased85/85,
temperaturecycle,autoclaveorunbiasedHAST,
electromigration,bondintermetalliclife,andmoldcompound
1 74、74HC、74LS系列芯片资料
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
