SN54ALS873B, SN54AS873A, SN74ALS873B, SN74AS873A

DUAL 4-BIT D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SDAS036D – APRIL 1982 – REVISED AUGUST 1995

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,

R1 = 500

Ω,

R2 = 500

Ω,

TA = MIN to MAX†

UNIT

SN54AS873A

SN74AS873A

MIN

MAX

MIN

MAX

tPLH

D

Q

3

12.5

3

9.5

ns

tPHL

D

Q

3

8.5

3

7.5

ns

tPLH

LE

Q

6

15.5

6

13

ns

tPHL

LE

Q

4

9

4

7.5

ns

tPHL

CLR

Q

3

10.5

3

9

ns

tPZH

OE

Q

2

8

2

6.5

ns

tPZL

OE

Q

4

11

4

10.5

ns

tPHZ

OE

Q

2

8

2

7.5

ns

tPLZ

OE

Q

2

8.5

2

7.5

ns

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