CY54FCT163T, CY74FCT163T

4-BIT BINARY COUNTERS

SCCS015A – MAY 1994 – REVISED OCTOBER 2001

1

POST OFFICE BOX 655303

With FCT and F Logic

Equivalent FCT Functions

Significantly Improved Noise

Characteristics

Operation

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

– 1000-V Charged-Device Model (C101)

Output Logic Levels

– 32-mA Output Sink Current

– 12-mA Output Source Current

– 64-mA Output Sink Current

– 32-mA Output Source Current

description

The

’FCT163T

devices

are

high-speed

synchronous modulo-16 binary counters. They

are synchronously presettable for application in

programmable dividers. These devices have two

types of count-enable (CEP and CET) inputs, plus a terminal-count (TC) output for versatility in forming

synchronous multistaged counters. The ’FCT163T devices have a synchronous-reset (SR) input that overrides

counting and parallel loading, and allows the outputs to be reset simultaneously on the rising edge of the clock.

outputs, preventing damaging current backflow through the device when it is powered down.

PIN DESCRIPTION

NAME

DESCRIPTION

CEP

Count-enable parallel input

CET

Count-enable trickle input

CP

Clock pulse input (active rising edge)

SR

Synchronous-reset input (active low)

P

Parallel data inputs

PE

Parallel-enable input (active low)

Q

Flip-flop outputs

TC

Terminal-count output

Copyright

 2001, 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

16

15

14

13

12

11

10

9

SR

CP

CEP

GND

TC

CET

PE

CY74FCT163CT ...Q OR SO PACKAGE

(TOP VIEW)

32 1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

NC

NC

NC – No internal connection

CY54FCT163T ...L PACKAGE

(TOP VIEW)

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.