SL74HC253
Dual 4-Input Data Selector/Multiplexer
with 3-State Otputs
High-Performance Silicon-Gate CMOS
The SL74HC253 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.
•
Outputs Directly Interface to CMOS, NMOS, and TTL
•
Operating Voltage Range: 2.0 to 6.0 V
•
Low Input Current: 1.0
µA
•
High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
SL74HC253N Plastic
SL74HC253D SOIC
T
A
= -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
FUNCTION TABLE
Inputs
A1
X
L
PIN 16 =V
CC
PIN 8 = GND
L
H
H
A0
X
L
H
L
H
OE
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
SLS
System Logic
Semiconductor
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
