TECHNICAL DATA
IN74HC253A
Dual 4-Input Data Selector/Multiplexer
with 3-State Otputs
High-Performance Silicon-Gate CMOS
The IN74HC253A is identical in pinout to the LS/ALS253. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL 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.
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•
•
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Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 µA
ORDERING INFORMATION
IN74HC253AN Plastic
IN74HC253AD SOIC
TA = -55° to 125° C for all packages
High Noise Immunity Characteristic of CMOS Devices
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
A0
X
Output
Y
A1
X
L
OE
H
L
Z
L
D0
D1
D2
D3
L
H
L
PIN 16 =VCC
PIN 8 = GND
H
H
L
L
H
L
D0,D1...D3=the level of the respective
Data Input
Z = high impedance
X = don’t care
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
