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MC74HC157A Datasheet PDF : 10 Pages
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MC74HC157A
Quad 2−Input Data
Selectors / Multiplexers
High−Performance Silicon−Gate CMOS
The MC74HC157A is identical in pinout to the LS157. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL 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
noninverted form. A high level on the Output Enable input sets all four
Y outputs to a low level.
Features
• Output Drive Capability: 10 LSTTL Loads
• 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
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 82 FETs or 20.5 Equivalent Gates
• Pb−Free Packages are Available*
16
1
http://onsemi.com
MARKING
DIAGRAMS
16
PDIP−16
N SUFFIX
CASE 648
MC74HC157AN
AWLYYWWG
1
16
1
16
1
16
SOIC−16
D SUFFIX
CASE 751B
HC157AG
AWLYWW
1
TSSOP−16
DT SUFFIX
CASE 948F
16
HC
157A
ALYWG
G
1
16
1
SOEIAJ−16
F SUFFIX
CASE 966
16
74HC157A
ALYWG
1
A
= Assembly Location
L, WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G
= Pb−Free Package
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 2 of this data sheet.
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2005
1
June, 2005 − Rev. 9
Publication Order Number:
MC74HC157A/D
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