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SCLS140D − DECEMBER 1982 − REVISED AUGUST 2003
D
D
Wide Operating Voltage Range of 2 V to 6 V
D
6-mA Output Drive at 5 V
High-Current 3-State True Outputs Can
Drive Up To 15 LSTTL Loads
D
D
Low Input Current of 1 µA Max
Eight High-Current Latches in a Single
Package
D
Low Power Consumption, 80-µA Max I
CC
D
Typical t = 13 ns
pd
D
Full Parallel Access for Loading
SN54HC373 . . . J OR W PACKAGE
SN74HC373 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54HC373 . . . FK PACKAGE
(TOP VIEW)
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
V
CC
8Q
8D
1
2
3
4
5
6
7
8
9
20
19
18
3
2
1
20 19
18
8D
7D
7Q
2D
2Q
3Q
3D
4D
4
5
6
7
8
17
16
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 LE
15 6Q
14
9 10 11 12 13
6D
GND 10
description/ordering information
These 8-bit latches feature 3-state outputs designed specifically for driving highly capacitive or relatively
low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional
bus drivers, and working registers.
The eight latches of the ’HC373 devices are transparent D-type latches. While the latch-enable (LE) input is
high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the levels that
were set up at the D inputs.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP − N
Tube of 20
Tube of 25
Reel of 2000
Reel of 2000
Reel of 2000
Tube of 70
Reel of 2000
Reel of 250
Tube of 20
Tube of 85
Tube of 55
SN74HC373N
SN74HC373N
SN74HC373DW
SN74HC373DWR
SN74HC373NSR
SN74HC373DBR
SN74HC373PW
SN74HC373PWR
SN74HC373PWT
SNJ54HC373J
SOIC − DW
HC373
SOP − NS
HC373
HC373
−40°C to 85°C
SSOP − DB
TSSOP − PW
HC373
CDIP − J
CFP − W
LCCC − FK
SNJ54HC373J
SNJ54HC373W
SNJ54HC373FK
−55°C to 125°C
SNJ54HC373W
SNJ54HC373FK
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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Copyright 2003, Texas Instruments Incorporated
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