SN74F2373_10 Datasheet, PDF (1/8 Pages) Texas Instruments – 25-ohm OCTAL TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS

D Eight Latches in a Single Package
D 3-State True Outputs With 25-Ω Sink
Resistors
D Full Parallel Access for Loading
D Buffered Control Inputs
D Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB) Packages, and Plastic (N) DIPs
description
This 8-bit latch features 3-state outputs designed
to sink up to 12 mA, and include 25-Ω sink resitors
to reduce overshoot and undershoot.
SN74F2373
25-Ω OCTAL TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SDFS100 – JANUARY 1996
DB, DW, OR N 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
The eight latches of the SN74F2373 are transparent D-type latches. While the latch-enable (LE) input is high,
the Q outputs follow the data (D) inputs. When the LE is taken low, the Q outputs are latched at the logic levels
set up at 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 logic levels) or a 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 need for interface or pullup components.
OE input does not affect the internal operations of the latches. Old data can be retained or new data can be
entered while the outputs are in the high-impedance state.
The SN74F373 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count
and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN74F373 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each latch)
INPUTS
OE LE
D
OUTPUT
Q
L
H
H
H
L
H
L
L
L
L
X
Q0
H
X
X
Z
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.
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Copyright © 1996, Texas Instruments Incorporated
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