MAX14781E_14 Datasheet, PDF (12/19 Pages) Maxim Integrated Products – Half-Duplex RS-485 Transceiver with Polarity Correction

MAX14781E
Function Tables
INPUTS
RE
DE
X
1
0
0
1
0
X = Don’t care
RE
DE
0
X
1
1
1
0
X = Don’t care
Half-Duplex RS-485 Transceiver
with Polarity Correction
TRANSMITTING
DETECTED
DI
POLARITY
1
Normal
0
Normal
1
Inverted
0
Inverted
X
X
X
X
OUTPUTS
A
B
1
0
0
1
0
1
1
0
High-Z
High-Z
Shutdown
RECEIVING
INPUTS
DETECTED POLARITY
Normal
Inverted
X
Normal
Inverted
X
X
(V_A - V_B) for TIME < t_PM
≥ -50mV
< 50mV
Open/Shorted
< -200mV
≥ 200mV
X
X
OUTPUTS
RO
1
1
1
0
0
High-Z
Shutdown
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