SN54ALS157A, SN54ALS158

SN74ALS157A, SN74ALS158, SN74AS157, SN74AS158

QUAD 1OF2 DATA SELECTORS/MULTIPLEXERS

SDAS081C − APRIL 1982 − REVISED DECEMBER 1994

7

POST OFFICE BOX 655303

POST OFFICE BOX 1443

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)

SN74AS157

UNIT

MIN

MAX

tPLH

A or B

Y

1

6

ns

tPHL

A or B

Y

1

5.5

ns

tPLH

A/B

Y

2

11

ns

tPHL

A/B

Y

2

10

ns

tPLH

G

Y

2

10.5

ns

tPHL

G

Y

2

7.5

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 = 4.5 V to 5.5 V,

CL = 50 pF,

TA = MIN to MAX†

UNIT

PARAMETER

(INPUT)

(OUTPUT)

SN74AS158

UNIT

MIN

MAX

tPLH

A or B

Y

1

5

ns

tPHL

A or B

Y

1

4.5

ns

tPLH

A/B

Y

2

9.5

ns

tPHL

A/B

Y

2

10.5

ns

tPLH

G

Y

2

6.5

ns

tPHL

G

Y

2

10

ns

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