SN54ABT843, SN74ABT843

9-BIT BUS-INTERFACE D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SCBS197D – FEBRUARY 1991 – REVISED MAY 1997

2

POST OFFICE BOX 655303

FUNCTION TABLE

INPUTS

OUTPUT

PRE

CLR

OE

LE

D

Q

L

X

L

X

X

H

H

LL

X

X

L

H

HL

HL

L

H

HL

H

H

H

H

HL

L

X

Q0

X

X

H

X

X

Z

EN

1

7

6D

8

7D

9

8D

10

9D

1D

2

1D

6Q

18

7Q

17

8Q

16

9Q

15

1Q

23

3

2D

4

3D

5

4D

6

5D

2Q

22

3Q

21

4Q

20

5Q

19

S2

14

R

11

C1

13

LE

OE

PRE

CLR

2

† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

Pin numbers shown are for the DB, DW, JT, NT, and W packages.