SN54AHC373, SN74AHC373
OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCLS235I – OCTOBER 1995 – REVISED JULY 2003
Operating Range 2-V to 5.5-V V
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
CC
Latch-Up Performance Exceeds 250 mA Per
JESD 17
– 1000-V Charged-Device Model (C101)
SN54AHC373 . . . J OR W PACKAGE
SN74AHC373 . . . DB, DGV, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
SN54AHC373 . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
LE
3
2
1 20 19
18
2D
2Q
3Q
3D
4D
8D
7D
7Q
6Q
4
5
6
7
8
17
16
15
14 6D
9 10 11 12 13
GND
description/ordering information
The ’AHC373 devices are octal transparent D-type latches designed for 2-V to 5.5-V V
operation.
CC
When the latch-enable (LE) input is high, the Q outputs follow the data (D) inputs. When LE is low, the Q outputs
are latched at the logic levels of the D inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines
significantly. The high-impedance state and increased drive provide the capability to drive bus lines without
interface or pullup components.
ORDERING INFORMATION
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
†
PACKAGE
T
A
PDIP – N
Tube
SN74AHC373N
SN74AHC373N
Tube
SN74AHC373DW
SN74AHC373DWR
SN74AHC373NSR
SN74AHC373DBR
SN74AHC373PW
SN74AHC373PWR
SN74AHC373DGVR
SNJ54AHC373J
SOIC – DW
AHC373
Tape and reel
Tape and reel
Tape and reel
Tube
SOP – NS
AHC373
HA373
–40°C to 85°C
SSOP – DB
TSSOP – PW
HA373
Tape and reel
Tape and reel
Tube
TVSOP – DGV
CDIP – J
HA373
SNJ54AHC373J
SNJ54AHC373W
SNJ54AHC373FK
–55°C to 125°C
CFP – W
Tube
SNJ54AHC373W
SNJ54AHC373FK
LCCC – FK
Tube
†
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.
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.
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.
1
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