SN54HCT373 Datasheet, PDF (1/15 Pages) Texas Instruments – OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS

D Operating Voltage Range of 4.5 V to 5.5 V
D High-Current 3-State True Outputs Can
Drive Up To 15 LSTTL Loads
D Low Power Consumption, 80-µA Max I_CC
D Typical t_pd = 21 ns
D ±6-mA Output Drive at 5 V
D Low Input Current of 1 µA Max
D Inputs Are TTL-Voltage Compatible
D Eight High-Current Latches in a Single
Package
D Full Parallel Access for Loading
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 ’HCT373 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.
SN54HCT373, SN74HCT373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS009D – MARCH 1984 – REVISED AUGUST 2003
SN54HCT373 . . .J OR W PACKAGE
SN74HCT373 . . .DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
OE 1
1Q 2
1D 3
2D 4
2Q 5
3Q 6
3D 7
4D 8
4Q 9
GND 10
20 V_CC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 LE
SN54HCT373 . . .FK PACKAGE
(TOP VIEW)
2D
3 2 1 20 19
4
18
8D
2Q 5
17 7D
3Q 6
16 7Q
3D 7
15 6Q
4D 8
14 6D
9 10 11 12 13
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube of 20
SN74HCT373N
SN74HCT373N
SOIC – DW
Tube of 25
Reel of 2000
SN74HCT373DW
SN74HCT373DWR
HCT373
–40°C to 85°C
SOP – NS
SSOP – DB
Reel of 2000
Reel of 2000
SN74HCT373NSR
SN74HCT373DBR
HCT373
HT373
Tube of 70
SN74HCT373PW
TSSOP – PW
Reel of 2000 SN74HCT373PWR
HT373
Reel of 250
SN74HCT373PWT
CDIP – J
Tube of 20
SNJ54HCT373J
SNJ54HCT373J
–55°C to 125°C CFP – W
Tube of 85
SNJ54HCT373W
SNJ54HCT373W
LCCC – FK
Tube of 55
SNJ54HCT373FK
SNJ54HCT373FK
† _{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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2003, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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