KK74ACT138N

更新时间： 2024-01-27 14:39:02

品牌	Logo	应用领域
可天士 - KODENSHI		解码器驱动器解复用器栅
页数	文件大小	规格书
6页	313K
描述
1-of-8 Decoder/Demultiplexer High-Speed Silicon-Gate CMOS

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技术参数
数据手册

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KK74ACT138N 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.84
Is Samacsys：	N	Base Number Matches：	1

KK74ACT138N 数据手册

TECHNICAL DATA

KK74ACT138

1-of-8 Decoder/Demultiplexer

High-Speed Silicon-Gate CMOS

The KK74ACT138 is identical in pinout to the LS/ALS138,

HC/HCT138. The KK74ACT138 may be used as a level converter for

interfacing TTL or NMOS outputs to High Speed CMOS inputs.

The KK74ACT138 decodes a three-bit Address to one-of-eight active-

lot outputs. This device features three Chip Select inputs, two active-low

and one active-high to facilitate the demultiplexing, cascading, and chip-

selecting functions. The demultiplexing function is accomplished by using

the Address inputs to select the desired device output; one of the Chip

Selects is used as a data input while the other Chip Selects are held in

their active states.

ORDERING INFORMATION

KK74ACT138N Plastic

KK74ACT138D SOIC

T_A= -40° to 85° C for all packages

•

TTL/NMOS Compatible Input Levels

Outputs Directly Interface to CMOS, NMOS, and TTL

Operating Voltage Range: 4.5 to 5.5 V

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

Outputs Source/Sink 24 mA

PIN ASSIGNMENT

LOGIC DIAGRAM

FUNCTION TABLE

Inputs

CS1CS2CS3

Outputs

A2 A1A0

Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7

X X H

X H X

L X X

X X X

H H H H H H H H

H L L

L L L

L L H

L H L

L H H

L H H H H H H H

H L H H H H H H

H H L H H H H H

H H H L H H H H

PIN 16 =V_CC

PIN 8 = GND

H L L

H L H

H H L

H H H

H H H H L H H H

H H H H H L H H

H H H H H H L H

H H H H H H H L

H = high level (steady state)

L = low level (steady state)

X = don’t care

12 3 4 5 6

中文翻译

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