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SL74HC157 Folha de dados(PDF) 1 Page - System Logic Semiconductor

Nome de Peças SL74HC157
Descrição Electrónicos  Quad 2-Input Data Selectors/Multiplexer
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Fabricante Electrônico  SLS [System Logic Semiconductor]
Página de início  http://www.slsemicon.co.kr/e_index.htm
Logo SLS - System Logic Semiconductor

SL74HC157 Folha de dados(HTML) 1 Page - System Logic Semiconductor

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SL74HC157
System Logic
Semiconductor
SLS
Quad 2-Input Data Selectors/Multiplexer
High-Performance Silicon-Gate CMOS
The SL74HC157 is identical in pinout to the LS/ALS157. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device routes 2 nibbles (A or B) to a single port (Y) as
determined by the Select input. The data is presented at the outputs in
noninvertered form. A high level on the Output Enable input sets all
four Y outputs to a low 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
SL74HC157N Plastic
SL74HC157D SOIC
TA = -55
° to 125° C for all packages
FUNCTION TABLE
Inputs
Outputs
Output
Enable
Select
Y0-Y3
H
X
L
L
L
A0-A3
L
H
B0-B3
X=don’t care
A0-A3,B0-B3=the levels of the respective
Data-Word Inputs
LOGIC DIAGRAM
PIN 16 =VCC
PIN 8 = GND
PIN ASSIGNMENT


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