MAX13442E Datasheet, PDF (12/18 Pages) Maxim Integrated Products – ±15kV ESD-Protected, ±80V Fault-Protected, Fail-Safe RS-485/J1708 Transceivers

±15kV ESD-Protected, ±80V Fault-Protected,
Fail-Safe RS-485/J1708 Transceivers
Table 1. MAX13442E/MAX13443E
(RS-485/RS-422)
TRANSMITTING
INPUTS
RE
DE
DI
OUTPUTS
A
B
0
0
X
High-Z
High-Z
0
1
0
0
1
0
1
1
1
0
1
0
X
Shutdown Shutdown
1
1
0
0
1
1
1
1
1
0
X = Don’t care.
Table 2. MAX13444E (J1708) Application
INPUTS
TXD
DE
0
1
1
1
0
0
1
0
TRANSMITTING
OUTPUTS
A
B
High-Z
High-Z
High-Z
High-Z
1
0
High-Z
High-Z
CONDITIONS
—
—
—
Dominant state
Recessive state
Function Tables
Table 3. MAX13442E/MAX13443E
(RS-485/RS-422)
RE
0
0
0
1
1
X = Don’t care.
RECEIVING
INPUTS
DE
(A - B)
X
≥-0.05V
X
≤-0.2V
X
Open/shorted
1
X
0
X
OUTPUTS
RO
1
0
1
High-Z
Shutdown
Table 4. MAX13444E (RS-485/RS-422)
RE
0
0
0
1
1
X = Don’t care.
RECEIVING
INPUTS
DE
(A - B)
X
≥-0.05V
X
≤-0.2V
X
Open/shorted
0
X
1
X
OUTPUTS
RO
1
0
1
High-Z
Shutdown
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