TECHNICAL DATA
IN74ACT253
Dual 4-Input Data Selector/Multiplexer
with 3-State Otputs
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
TA = -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Output
Y
A1
A0 Output
Enable
X
L
X
L
H
L
L
L
L
Z
D0
D1
D2
D3
L
H
L
H
H
PIN 16 =VCC
PIN 8 = GND
H
D0,D1...D3=the level of the respective
Data Input
Z = high impedance
X = don’t care
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
