SN54ALS259, SN74ALS259

8-BIT ADDRESSABLE LATCHES

SDAS217A – DECEMBER 1982 – REVISED DECEMBER 1994

5

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

(INPUT)

(OUTPUT)

SN54ALS259

SN74ALS259

MIN

MAX

MIN

MAX

tPHL

CLR

Any Q

2

15

2

12

ns

tPLH

Data

Any Q

4

22

4

19

ns

tPHL

Data

Any Q

2

15

2

12

ns

tPLH

Address

Any Q

4

26

4

22

ns

tPHL

Address

Any Q

2

15

2

12

ns

tPLH

Execute

Any Q

4

22

4

20

ns

tPHL

Execute

Any Q

2

16

2

13

ns

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