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MC74HC373A Datasheet PDF : 10 Pages
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MC74HC373A
Octal 3−State Non−Inverting
Transparent Latch
High−Performance Silicon−Gate CMOS
The MC74HC373A is identical in pinout to the LS373. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
These latches appear transparent to data (i.e., the outputs change
asynchronously) when Latch Enable is high. When Latch Enable goes
low, data meeting the setup and hold time becomes latched.
The Output Enable input does not affect the state of the latches, but
when Output Enable is high, all device outputs are forced to the
high−impedance state. Thus, data may be latched even when the
outputs are not enabled.
The HC373A is identical in function to the HC573A which has the
data inputs on the opposite side of the package from the outputs to
facilitate PC board layout.
The HC373A is the non−inverting version of the HC533A.
Features
• Output Drive Capability: 15 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 JEDEC Standard No. 7.0 A Requirements
• Chip Complexity: 186 FETs or 46.5 Equivalent Gates
• Pb−Free Packages are Available*
20
1
20
1
http://onsemi.com
MARKING
DIAGRAMS
20
PDIP−20
N SUFFIX
CASE 738
1
MC74HC373AN
AWLYYWWG
20
SOIC−20
DW SUFFIX
CASE 751D
74HC373A
AWLYYWWG
1
20
1
20
TSSOP−20
DT SUFFIX
CASE 948E
1
HC
373A
ALYWG
G
20
1
20
SOEIAJ−20
F SUFFIX
CASE 967
1
74HC373A
AWLYWWG
A
= Assembly Location
WL, L = Wafer Lot
YY, Y = Year
WW, W = 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 3 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
July, 2005 − Rev. 12
Publication Order Number:
MC74HC373A/D
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