TECHNICAL DATA
IN74HC151A
8-Input Data Selector/Multiplexer
High-Performance Silicon-Gate CMOS
The IN74HC151A is identical in pinout to the LS/ALS151. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The device selects one of the eight binary Data Inputs, as determined
by the Address Inputs. The Strobe pin must be at a low level for the
selected data to appear at the outputs. If Strobe is high, the Y output is
forced to a low level and the Y output is forced to a high level.
•
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
IN74HC151AN Plastic
IN74HC151AD SOIC
T
A
= -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
A2
X
L
L
PIN 16 =V
CC
PIN 8 = GND
L
L
H
H
H
H
A1
X
L
L
H
H
L
L
H
H
A0
X
L
H
L
H
L
H
L
H
Strobe
H
L
L
L
L
L
L
L
L
Outputs
Y
L
D0
D1
D2
D3
D4
D5
D6
D7
Y
H
D0
D1
D2
D3
D4
D5
D6
D7
D0,D1...D7=the level of the respective D
input
X = don’t care
Rev. 00
IKSEMICON [ IK SEMICON CO., LTD ]
