UNIT

tsu

Setup time before CLK

↓

ns

SN54ALS114A, SN74ALS114A

DUAL JK NEGATIVEEDGETRIGGERED FLIPFLOPS

WITH PRESET,COMMON CLEAR,AND COMMON CLOCK

SDAS201 − D2661, DECEMBER 1982 − REVISED MAY 1986

POST OFFICE BOX 655303

POST OFFICE BOX 1443

2

logic diagram (positive logic)

To Other Flip-Flop

J

CLR

Q

CLK

K

PRE

Q

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range: SN54ALS114A

−55

°C to 125°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74ALS114A

0

°C to 70°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

−65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

recommended operating conditions

SN54ALS114A

SN74ALS114A

MIN

NOM

MAX

MIN

NOM

MAX

VCC

Supply voltage

4.5

5

5.5

4.5

5

5.5

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.7

0.8

V

IOH

High-level output current

− 0.4

− 0.4

mA

IOL

Low-level output current

4

8

mA

fclock

Clock frequency

0

25

0

30

mHz

PRE or CLR low

20

10

tw

Pulse duration

CLK high

20

16.5

ns

CLK low

20

16.5

Data

25

22

PRE or CLR inactive

25

20

th

Hold time, data after CLK

↓

0

0

ns

TA

Operating free-air temperature

−55

125

0

70

°C