SN74F2373

25-

Ω OCTAL TRANSPARENT D-TYPE LATCH

WITH 3-STATE OUTPUTS

SDFS100 – JANUARY 1996

1

POST OFFICE BOX 655303

Resistors

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.

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

OUTPUT

OE

LE

D

Q

L

H

H

H

L

HL

L

L

LX

Q0

H

X

X

Z

Copyright

© 1996, Texas Instruments Incorporated

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.

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.

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

GND

8Q

8D

7D

7Q

6Q

6D

5D

5Q

LE

DB, DW, OR N PACKAGE

(TOP VIEW)