SN74ALS620A, SN74ALS621A, SN74ALS623A, SN74AS623

OCTAL BUS TRANSCEIVERS

SDAS226A – DECEMBER 1982 – REVISED JANUARY 1995

8

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,

R1 = 500

R2 = 500

TA = MIN to MAX†

UNIT

SN74AS623

MIN

MAX

tPLH

A

B

1

9

ns

tPHL

A

B

1

8

ns

tPLH

B

A

1

9

ns

tPHL

B

A

1

8.5

ns

tPZH

OEBA

A

2

11

ns

tPZL

OEBA

A

2

10

ns

tPHZ

OEBA

A

1

7.5

ns

tPLZ

OEBA

A

1

11.5

ns

tPZH

OEAB

B

2

11.5

ns

tPZL

OEAB

B

2

11

ns

tPHZ

OEAB

B

1

7

ns

tPLZ

OEAB

B

1

9

ns

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