SN54ALS842, SN74ALS842

10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS

SDAS059B – D2910, DECEMBER 1983 – REVISED MAY 1986

POST OFFICE BOX 655303

8

’ALS842 switching characteristics (see Note 1)

VCC = 5 V,

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

CL = 50 pF,

R1 = 500

Ω,

R1 = 500

Ω,

PARAMETER

FROM

TO

R2 = 500

Ω,

R2 = 500

Ω,

UNIT

PARAMETER

(INPUT)

(OUTPUT)

TA = 25°C

TA = MIN to MAX†

UNIT

’ALS842

SN54ALS842

SN74ALS842

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

D

Q

11

15

4

22

4

18

ns

tPHL

D

Q

8

11

3

17

3

13

ns

tPLH

C

Q

17

23

8

31

8

27

ns

tPHL

C

Q

13

18

6

24

6

20

ns

tPZH

OC

Q

8

10

2

14

2

12

ns

tPZL

OC

Q

8

11

2

14

2

12

ns

tPHZ

OC

Q

6

8

1

12

1

10

ns

tPLZ

OC

Q

7

9

2

14

2

12

ns

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

NOTE 1: Load circuit and voltage waveforms are shown in Section 1.