MAX13430E_14 Datasheet, PDF (14/20 Pages) Maxim Integrated Products – RS-485 Transceivers with Low-Voltage Logic Interface

MAX13430E–MAX13433E
RS-485 Transceivers with Low-Voltage
Logic Interface
Function Tables and Functional Diagrams
MAX13432E/MAX13433E (Full Duplex)
MAX13430E/MAX13431E (Half Duplex)
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
Z
Y
X
1
1
0
1
X
1
0
1
0
0
0
X
High-
High-
Impedance Impedance
1
0
X
Shutdown
TRANSMITTING
INPUTS
OUTPUTS
RE
DE
DI
B
A
X
1
1
0
1
X
1
0
1
0
1
0
X
High-
High-
Impedance Impedance
0
0
X
Shutdown*
RECEIVING
INPUTS
OUTPUT
RE
DE
A-B
RO
RE
0
X
≥ -50mV
1
0
0
X
≤ -200mV
0
0
0
X
Open/
Shorted
1
0
1
1
X
High-Impedance
1
1
0
X
Shutdown
1
X = Don’t care.
*Shutdown mode, driver and receiver outputs are in high impedance.
RECEIVING
INPUTS
OUTPUT
DE
A-B
RO
X
≥ -50mV
1
X
≤ -200mV
0
X
Open/
Shorted
1
1
X
High-Impedance
0
X
Shutdown*
V_L
V_CC
V_L
V_CC
MAX13430E
MAX13431E
DI
D
DE
DI
B
DE
MAX13432E
MAX13433E
Z
D
Y
RE
RE
A
B
RO
R
RO
R
A
GND
Figure 9. Functional Diagrams
14
GND
Maxim Integrated