Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX3082/MAX3085/MAX3088
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
B/Z
A/Y
X
1
1
0
1
X
1
0
1
0
0
0
X
High-Z High-Z
1
0
X
Shutdown
RECEIVING
INPUTS
OUTPUT
RE
DE
A-B
RO
0
X
≥ -0.05V
1
0
X
≤ -0.2V
0
0
X
Open/shorted
1
1
1
X
High-Z
1
0
X
Shutdown
Function Tables (continued)
MAX3089
TXP
0
0
1
1
X
X
TRANSMITTING
INPUTS
RE
DE
DI
X
1
1
X
1
0
X
1
1
X
1
0
0
0
X
1
0
X
OUTPUTS
Z
Y
0
1
1
0
1
0
0
1
High-Z High-Z
Shutdown
RECEIVING
INPUTS
H/F RXP RE DE
A-B
0
0
0
X ≥ -0.05V
OUTPUT
Y-Z
RO
X
1
0
0
0
X
≤ -0.2V
X
0
0
1
0
X ≥ -0.05V
X
0
0
1
0
X
≤ -0.2V
X
1
1000
X
≥ -0.05V
1
1000
X
≤ -0.2V
0
1100
X
≥ -0.05V
0
1100
X
≤ -0.2V
1
0
0
0
X
Open/
shorted
X
1
1000
X
Open/
shorted
1
0
1
0
X
Open/
shorted
X
0
1100
X
Open/
shorted
0
XX11
X
XX10
X
X
High-Z
X
Shutdown
12 ______________________________________________________________________________________