SN54ABT657A, SN74ABT657A

OCTAL TRANSCEIVERS WITH PARITY GENERATORS/CHECKERS

AND 3-STATE OUTPUTS

SCBS192E – JANUARY 1991 – REVISED JUNE 1997

3

POST OFFICE BOX 655303

B2

22

B3

21

B4

20

B5

17

B6

16

B1

23

OE

T/R

3 EN1/3G5 [REC]

1

A2

3

A3

4

A4

5

A5

6

A6

8

A7

9

A8

10

B7

15

B8

14

ODD/EVEN

3 EN2 [XMIT]

2 k

5

4, 2

4, 1

ERR

G3

24

N4

11

11

A1

2

12

13

14

15

16

17

18

PARITY

13

12

1

1

Z11

2

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

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