TECHNICAL DATA
IN74AC253
Dual 4-Input Data Selector/Multiplexer
with 3-State Otputs
High-Speed Silicon-Gate CMOS
The IN74AC253 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
ORDERING INFORMATION
IN74AC253N Plastic
IN74AC253D SOIC
T
A
= -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
A1
X
L
L
H
PIN 16 =V
CC
PIN 8 = GND
H
A0
X
L
H
L
H
Output
Enable
H
L
L
L
L
Output
Y
Z
D0
D1
D2
D3
D0,D1...D3=the level of the respective
Data Input
Z = high impedance
X = don’t care
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
