SN54ALS996, SN74ALS996

8-BIT D-TYPE EDGE-TRIGGERED READ-BACK LATCHES

SDAS098B – OCTOBER 1984 – REVISED JANUARY 1995

2–6

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,

TA = MIN to MAX†

UNIT

PARAMETER

(INPUT)

(OUTPUT)

SN54ALS996

SN74ALS996

UNIT

MIN

MAX

MIN

MAX

fmax

35

35

MHz

tPLH

CLK

Q

5

30

5

28

ns

tPHL

(T/C = H or L)

Q

5

24

5

28

ns

tPLH

CLR (T/C = L)

Q

5

27

7

27

ns

tPHL

CLR (T/C = H)

Q

5

23

7

23

ns

tPLH

T/C

Q

4

23

5

23

ns

tPHL

T/C

Q

5

23

5

23

ns

tPHL

CLR

D

5

30

8

30

ns

ten‡

RD

D

2

18

3

16

ns

tdis§

RD

D

1

19

3

19

ns

ten‡

EN

D

2

17

3

16

ns

tdis§

EN

D

1

19

3

19

ns

ten‡

OE

Q

2

15

4

15

ns

tdis§

OE

Q

1

11

1

10

ns

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

‡ ten = tPZH or tPZL

§ tdis = tPHZ or tPLZ