16-Bit Latches

CY74FCT16373T

CY74FCT162373T

SCCS054 - August 1994 - Revised March 2000

Data sheet acquired from Cypress Semiconductor Corporation.

Data sheet modified to remove devices not offered.

Copyright

Features

• FCT-E speed at 3.4 ns

• Power-off disable outputs permits live insertion

• Edge-rate control circuitry for significantly improved

noise characteristics

• Typical output skew < 250 ps

• ESD > 2000V

• TSSOP (19.6-mil pitch) and SSOP (25-mil pitch)

packages

• Industrial temperature range of

−40˚C to +85˚C

CY74FCT16373T Features:

• 64 mA sink current, 32 mA source current

CY74FCT162373T Features:

• Balanced 24 mA output drivers

• Reduced system switching noise

Functional Description

CY74FCT16373T and CY74FCT162373T are 16-bit D-type

latches designed for use in bus applications requiring high

speed and low power. These devices can be used as two

independent 8-bit latches or as a single 16-bit latch by

connecting the Output Enable (OE) and Latch (LE) inputs.

Flow-through pinout and small shrink packaging aid in

simplifying board layout. The output buffers are designed with

power-off disable feature that allows live insertion of boards.

The

CY74FCT16373T

is

ideally

suited

for

driving

high-capacitance loads and low-impedance backplanes.

The CY74FCT162373T has 24-mA balanced output drivers

with current limiting resistors in the outputs. This reduces the

need for external terminating resistors and provides for

minimal undershoot and reduced ground bounce. The

CY74FCT162373T is ideal for driving transmission lines.

Logic Block Diagrams

Pin Configuration

D

C

FCT162373-1

TO 7 OTHER CHANNELS

D

C

FCT162373-2

GND

1

2

3

4

5

6

7

8

9

10

11

12

33

32

31

30

29

25

26

27

28

36

35

34

SSOP/TSSOP

Top View

13

14

15

16

17

18

19

20

21

22

23

24

45

44

43

42

41

37

38

39

40

48

47

46

GND

GND

GND

GND

GND

GND

GND

FCT162373-3

TO 7 OTHER CHANNELS