2

Functional Diagram

TRUTH TABLE

CONTROL

INPUTS

OPERATION

OE

DIR

L

L

B Data to A Bus

L

H

A Data to B Bus

H

X

Isolation

H = High Voltage Level, L = Low Voltage Level,

X = Immaterial

To prevent excess currents in the High-Z (Isolation) modes, all I/O terminals

should be terminated with 10k

Ω to 1MΩ resistors.

ONE OF 8 TRANSCEIVERS

B DATA

(18, 17, 16, 15,

14, 13, 12)

DIR

OUTPUT

ENABLE

1

11

19

A DATA

9

(2, 3, 4, 5,

6, 7, 8)

TO OTHER

7 CIRCUITS

P

N

N

P

HCTS245T