SN54ALS157A, SN54ALS158

SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158

QUAD 1-OF-2 DATA SELECTORS/MULTIPLEXERS

SDAS081C – APRIL 1982 – REVISED DECEMBER 1994

5

POST OFFICE BOX 655303

switching characteristics (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

CL = 50 pF,

TA = 25°C

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

′ALS157A

SN54ALS157A

SN74ALS157A

TYP

MIN

MAX

MIN

MAX

tPLH

AorB

Y

9

4

17

4

14

ns

tPHL

A or B

Y

6

2

15

2

12

ns

tPLH

A/B

Y

15

7

28

7

24

ns

tPHL

A/B

Y

9

4

20

4

17

ns

tPLH

G

Y

14

7

25

7

20

ns

tPHL

G

Y

10

4

18

4

13

ns

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

switching characteristics (see Figure 1)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

CL = 50 pF,

TA = 25°C

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

′ALS158

SN54ALS158

SN74ALS158

TYP

MIN

MAX

MIN

MAX

tPLH

AorB

Y

9

4

18

4

15

ns

tPHL

A or B

Y

5

2

12

2

8

ns

tPLH

A/B

Y

13

5

22

5

18

ns

tPHL

A/B

Y

13

5

22

5

18

ns

tPLH

G

Y

13

5

22

5

18

ns

tPHL

G

Y

13

5

22

5

18

ns

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