MAX14840E_15 Datasheet, PDF (11/16 Pages) Maxim Integrated Products – 40Mbps, +3.3V, RS-485 Half-Duplex Transceivers

MAX14840E/MAX14841E 40Mbps, +3.3V, RS-485 Half-Duplex Transceivers
Function Table
RE
X
X
0
1
INPUTS
DE
1
1
0
0
TRANSMITTING
DI
1
0
X
X
RECEIVING (MAX14840E)
INPUTS
RE
DE
A-B
0
X
R 200mV
0
X
P -200mV
0
X
Open/Shorted
1
1
X
1
0
X
RECEIVING (MAX14841E)
INPUTS
RE
DE
A-B
0
X
R -10mV
0
X
P -200mV
0
X
Open/Shorted
1
1
X
1
0
X
X = Don’t care.
Note: Shutdown mode, driver, and receiver outputs are in high impedance.
OUTPUTS
B
A
0
1
1
0
High Impedance
High Impedance
Shutdown (see note)
OUTPUTS
RO
1
0
Previous State
High Impedance
Shutdown (see note)
OUTPUTS
RO
1
0
1
High Impedance
Shutdown (see note)
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