SL74HC151
8-Input Data Selector/Multiplexer
High-Performance Silicon-Gate CMOS
The SL74HC151 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.
ORDERING INFORMATION
SL74HC151N Plastic
SL74HC151D SOIC
TA = -55° to 125° C for all packages
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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 mA
High Noise Immunity Characteristic of CMOS Devices
PIN ASSIGNMENT
LOGIC DIAGRAM
FUNCTION TABLE
Inputs
Outputs
A2 A1 A0
Strobe
Y
L
Y
X
L
X
L
X
L
H
L
L
L
L
L
L
L
L
H
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
D5
D6
D7
L
L
H
L
PIN 16 =VCC
PIN 8 = GND
L
H
H
L
L
H
L
H
H
H
H
L
H
L
H
H
H
D0,D1...D7=the level of the respective D
input
X = don’ t care
System Logic
SLS
Semiconductor
SLS [ SYSTEM LOGIC SEMICONDUCTOR ]
