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MC74HC373A Datasheet PDF : 8 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.
• 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 µA
• High Noise Immunity Characteristic of CMOS Devices
• In Compliance with the Requirements Defined by JEDEC Standard
No. 7A
• Chip Complexity: 186 FETs or 46.5 Equivalent Gates
http://onsemi.com
20
1
20
1
PDIP–20
N SUFFIX
CASE 738
SOIC WIDE–20
DW SUFFIX
CASE 751D
MARKING
DIAGRAMS
20
MC74HC373AN
AWLYYWW
1
20
HC373A
AWLYYWW
1 20
20
1
20
1
TSSOP–20
DT SUFFIX
CASE 948E
HC
373A
ALYW
SOEIAJ–20
F SUFFIX
CASE 967
1
20
74HC373A
AWLYWW
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
ORDERING INFORMATION
Device
Package Shipping
MC74HC373AN
PDIP–20 1440 / Box
MC74HC373ADW
SOIC–WIDE 38 / Rail
MC74HC373ADWR2 SOIC–WIDE 1000 / Reel
MC74HC373ADT
TSSOP–20 75 / Rail
MC74HC373ADTR2 TSSOP–20 2500 / Reel
MC74HC373AF
SOEIAJ–20 1600 / Box
MC74HC373AFEL
SOEIAJ–20 2000 / Reel
© Semiconductor Components Industries, LLC, 2001
1
November, 2001 – Rev. 10
Publication Order Number:
MC74HC373A/D
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