F81485 Datasheet, PDF (6/12 Pages) Feature Integration Technology Inc. – 5V Low Power RS-485 Interface Transceiver

4
6
7
RE#
X
X
X
X
F81485
Driver Input.
DI
IN_t
When the driver is enabled (DE is high), a logic low on DI
forces A low and B high, while a logic high on DI forces A
high and B low.
A
I/O Non-inverting Receiver Input A/Driver Output A.
B
I/O Inverting Receiver Input B/Driver Output B.
Inputs
DE
1
1
0
1
Transmitting
Line
DI
Conditio
n
1
No Fault
0
No Fault
X
X
X
Fault
Outputs
B
A
0
1
1
0
Z
Z
Z
Z
Receiving
Inputs
Ouptuts
RE#
DE
A-B
R
0
0
≥0.2V
1
0
0
≤0.2V
0
0
0
Inputs Open
1
1
0
X
Z
6
Jan, 2012
V0.11P