Datasheet > KK74AC251

KK74AC251

更新时间： 2024-02-10 00:26:09

品牌	Logo	应用领域
可天士 - KODENSHI		复用器栅
页数	文件大小	规格书
6页	374K
描述
8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS

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技术参数
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KK74AC251 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84

KK74AC251 数据手册

TECHNICAL DATA

KK74AC251

8-Input Data Selector/Multiplexer

with 3-State Outputs

High-Speed Silicon-Gate CMOS

The KK74AC251 is identical in pinout to the LS/ALS251,

HC/HCT251. The device inputs are compatible with standard CMOS

outputs; with pullup resistors, they are compatible with LS/ALS outputs.

The device selects one of the eight binary Data Inputs, as determined

by the Address Inputs. The Output Enable pin must be at a low level for

the selected data to appear at the outputs. If Output Enable is high, the Y

and the Y outputs are in the high-impedance state. This 3-State feature

allows the KK74AC251 to be used in bus-oriented systems.

ORDERING INFORMATION

KK74AC251N Plastic

KK74AC251D SOIC

T_A= -40° to 85° C for all packages

•

Outputs Directly Interface to CMOS, NMOS, and TTL

Operating Voltage Range: 2.0 to 6.0 V

Low Input Current: 1.0 µA; 0.1 µA @ 25°C

High Noise Immunity Characteristic of CMOS Devices

•

Outputs Source/Sink 24 mA

PIN ASSIGNMENT

LOGIC DIAGRAM

FUNCTION TABLE

Inputs

Outputs

A2 A1 A0 Output

Enable

PIN 16 =V_CC

PIN 8 = GND

D0,D1...D7=the level of the respective D

input

Z = high-impedance state

X = don’t care

12 3 4 5 6

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与KK74AC251相关器件

型号	品牌	获取价格	描述	数据表
KK74AC251D	KODENSHI	获取价格	8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS
KK74AC251N	KODENSHI	获取价格	8-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS
KK74AC253	KODENSHI	获取价格	Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS
KK74AC253D	KODENSHI	获取价格	Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS
KK74AC253N	KODENSHI	获取价格	Dual 4-Input Data Selector/Multiplexer with 3-State Otputs High-Speed Silicon-Gate CMOS
KK74AC257	KODENSHI	获取价格	Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS
KK74AC257D	KODENSHI	获取价格	Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS
KK74AC257N	KODENSHI	获取价格	Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS
KK74AC258	KODENSHI	获取价格	Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS
KK74AC258D	KODENSHI	获取价格	Quad 2-Input Data Selector/Multiplexer with 3-State Outputs High-Speed Silicon-Gate CMOS