KK74AC157N

更新时间： 2024-09-23 05:11:27

品牌	Logo	应用领域
可天士 - KODENSHI		解复用器栅
页数	文件大小	规格书
6页	343K
描述
Quad 2-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS

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KK74AC157N 数据手册

TECHNICAL DATA

KK74AC157

Quad 2-Input Data Selector/Multiplexer

High-Speed Silicon-Gate CMOS

The KK74AC157 is identical in pinout to the LS/ALS157,

HC/HCT157. The device inputs are compatible with standard CMOS

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

This device routes 2 nibbles (A or B) to a single port (Y) as

determined by the Select input. The data is presented at the outputs in

noninvertered form. A high level on the Output Enable input sets all four

Y outputs to a low level.

•

Outputs Directly Interface to CMOS, NMOS, and TTL

Operating Voltage Range: 2.0 to 6.0 V

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

High Noise Immunity Characteristic of CMOS Devices

Outputs Source/Sink 24 mA

ORDERING INFORMATION

KK74AC157N Plastic

KK74AC157D SOIC

T_A= -40° to 85° C for all packages

PIN ASSIGNMENT

LOGIC DIAGRAM

FUNCTION TABLE

Inputs

Output

Outputs

Y0-Y3

Select

PIN 16 =V_CC

PIN 8 = GND

Enable

A0-A3

B0-B3

X=don’t care

A0-A3,B0-B3=the levels of the respective

Data-Word Inputs

12 3 4 5 6

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