SN54HC112, SN74HC112

DUAL JK NEGATIVEEDGETRIGGERED FLIPFLOPS

WITH CLEAR AND PRESET

SCLS099F − DECEMBER 1982 − REVISED SEPTEMBER 2003

1

POST OFFICE BOX 655303

description/ordering information

The ’HC112 devices contain two independent J-K

negative-edge-triggered flip-flops. A low level at

the preset (PRE) or clear (CLR) inputs sets or

resets the outputs, regardless of the levels of the

other inputs. When PRE and CLR are inactive

(high), data at the J and K inputs meeting the

setup time requirements are transferred to the

outputs on the negative-going edge of the clock

(CLK) pulse. Clock triggering occurs at a voltage

level and is not directly related to the fall time of the

CLK pulse. Following the hold-time interval, data

at the J and K inputs may be changed without

affecting the levels at the outputs. These versatile

flip-flops perform as toggle flip-flops by tying J and

K high.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP − N

Tube of 25

SN74HC112N

SN74HC112N

−40

°C to 85°C

Tube of 40

SN74HC112D

−40

°C to 85°C

SOIC − D

Reel of 2500

SN74HC112DR

HC112

SOIC − D

Reel of 250

SN74HC112DT

HC112

CDIP − J

Tube of 25

SNJ54HC112J

SNJ54HC112J

−55

°C to 125°C

CFP − W

Tube of 150

SNJ54HC112W

SNJ54HC112W

−55 C to 125 C

LCCC − FK

Tube of 55

SNJ54HC112FK

SNJ54HC112FK

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

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.

32 1 20 19

910 11 1213

4

5

6

7

8

18

17

16

15

14

2CLR

2CLK

NC

2K

2J

1J

1PRE

NC

1Q

1Q

SN54HC112 . . . FK PACKAGE

(TOP VIEW)

NC − No internal connection

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1CLK

1K

1J

1PRE

1Q

1Q

2Q

GND

1CLR

2CLR

2CLK

2K

2J

2PRE

2Q

SN54HC112 ...J OR W PACKAGE

SN74HC112 ...D OR N PACKAGE

(TOP VIEW)

Copyright

 2003, 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.

On products compliant to MILPRF38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.