4-Bit Binary Counter

CY54/74FCT163T

SCCS015 - May 1994 - Revised February 2000

Data sheet acquired from Cypress Semiconductor Corporation.

Data sheet modified to remove devices not offered.

Copyright

Features

• Function, pinout, and drive compatible with FCT and

F logic

• FCT-C speed at 5.8 ns max. (Com’l),

FCT functions

• Edge-rate control circuitry for significantly improved

noise characteristics

• Power-off disable feature

• ESD > 2000V

• Matched rise and fall times

• Fully compatible with TTL input and output logic levels

• Extended commercial range of

−40˚C to +85˚C

• Sink current

64 mA (Com’l),

32 mA (Mil)

Source current

32 mA (Com’l),

12 mA (Mil)

Functional Description

The FCT163T is a high-speed synchronous modulo-16 binary

counter. It is synchronously presettable for application in pro-

grammable dividers and has two types of count enable inputs

plus a terminal count output for versatility in forming synchro-

nous multi-staged counters. The FCT163T has a Synchronous

Reset input that overrides counting and parallel loading and

allows the outputs to be simultaneously reset on the rising

edge of the clock.

The outputs are designed with a power-off disable feature to

allow for live insertion of boards.

Logic Block Diagram

Pin Configurations

Detail A

Detail A

Detail A

D

Q

CP

D

Q

TC

CEP

CP

Detail A

CP

PE

CET

CP

SR

4

8

9

10

11

12

76 5

1516 17 18

3

2

1

20

13

14

19

CET

PE

NC

CP

TC

CEP

GND

SR

Top View

LCC

NC

1

2

3

4

5

6

7

8

CP

CEP

GND

Top View

SOIC/QSOP

16

15

14

13

12

11

10

9

SR

Q3

CET

PE

TC