IN74ACT253
D
UAL
4-I
NPUT
D
ATA
S
ELECTOR
/M
ULTIPLEXER
WITH
3-S
TATE
O
TPUTS
High-Speed Silicon-Gate CMOS
The IN74ACT253 is identical in pinout to the LS/ALS253,
HC/HCT253. The IN74ACT253 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS
inputs.
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.
•
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
•
•
•
•
ORDERING INFORMATION
IN74ACT253N Plastic
IN74ACT253D SOIC
T
A
= -40° to 85° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
A1
X
L
L
H
H
Inputs
A0
Output
Enable
X
H
L
L
H
L
L
L
H
L
Output
Y
Z
D0
D1
D2
D3
PIN 16 =V
CC
PIN 8 = GND
D0,D1...D3=the level of the
respective Data Input
Z = high impedance
X = don’t care
1
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