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.
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MARKING
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.
DIAGRAMS
20
20
PDIP−20
N SUFFIX
CASE 738
MC74HC373AN
AWLYYWWG
1
1
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.
20
SOIC−20
20
74HC373A
AWLYYWWG
DW SUFFIX
CASE 751D
The HC373A is the non−inverting version of the HC533A.
1
Features
1
• Output Drive Capability: 15 LSTTL Loads
• Outputs Directly Interface to CMOS, NMOS and TTL
• Operating Voltage Range: 2.0 to 6.0 V
20
HC
373A
ALYWG
G
TSSOP−20
DT SUFFIX
CASE 948E
20
• 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*
1
1
20
SOEIAJ−20
F SUFFIX
CASE 967
20
74HC373A
AWLYWWG
1
1
A
WL, L
YY, Y
= Assembly Location
= Wafer Lot
= Year
WW, W = Work Week
G
= Pb−Free Package
= Pb−Free Package
G
(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
Publication Order Number:
July, 2005 − Rev. 12
MC74HC373A/D