TECHNICAL DATA

KK74AC253

Dual 4-Input Data Selector/Multiplexer

with 3-State Otputs

High-Speed Silicon-Gate CMOS

ORDERING INFORMATION

KK74AC253N Plastic

KK74AC253D SOIC

The

KK74AC253

is

identical

in

pinout

to

the

LS/ALS253,

HC/HCT253. The device inputs are compatible with standard CMOS

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

The Address Inputs select one of four Data Inputs from each

multiplexer. Each multiplexer has an active-low Output Enable control

and a three-state noninverting output.

• 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

PIN 8 = GND

FUNCTION TABLE

Inputs

Output

A1

A0

Output

Enable

Y

X

X

H

Z

L

L

L

D0

L

H

L

D1

H

L

L

D2

H

H

L

D3

D0,D1...D3=the level of the respective

Data Input

Z = high impedance

X = don’t care

1