SN54ALS112A, SN74ALS112A

DUAL J-K NEGATIVE-EDGE-TRIGGERED FLIP-FLOPS

WITH CLEAR AND PRESET

SDAS199A – APRIL 1982 – REVISED DECEMBER 1994

4

POST OFFICE BOX 655303

switching characteristics (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

RL = 500 Ω,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

SN54ALS112A

SN74ALS112A

MIN

MAX

MIN

MAX

fmax

25

30

MHz

tPLH

PRE or CLR

QorQ

3

26

3

15

ns

tPHL

PRE or CLR

Q or Q

4

23

4

18

ns

tPLH

CLK

QorQ

3

23

3

15

ns

tPHL

CLK

Q or Q

5

24

5

19

ns

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.