SN74AHC245-EP

OCTAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCLS487A – MAY 2003 – REVISED JUNE 2003

2

POST OFFICE BOX 655303

FUNCTION TABLE

(each transceiver)

INPUTS

OPERATION

OE

DIR

OPERATION

L

L

B data to A bus

L

H

A data to B bus

H

X

Isolation

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

B2

17

B3

16

B4

15

A5

6

A6

7

A7

8

A8

9

A2

3

A3

4

A4

5

OE

A1

2

G3

19

3 EN2 [AB]

B5

14

B6

13

B7

12

B8

11

B1

18

3 EN1 [BA]

1

DIR

1

2

logic diagram (positive logic)

DIR

OE

A1

B1

To Seven Other Channels

1

2

19

18