ISL33354E Datasheet, PDF (17/23 Pages) Intersil Corporation – Full fail-safe (open/short) RS-485/422 port 2 Rx

+5V
ISL3335XE
V_CC
RO
RE485
Tx/Rx
DE485
DI
RA
B
Z
D
Y
GND
ISL33354E, ISL33357E
GENERIC 1/2 DUPLEX RS-485 XCVR
RO RE DE DI
+
0.1µF
0.1µF
R
+5V
V_CC
D
B/Z
GND
A/Y
R_T
GENERIC 1/2 DUPLEX RS-485 XCVR
+5V
+
0.1µF
V_CC
R
RO
RE
B/Z
A/Y
DE
DI
D
R_T
GND
FIGURE 32. TYPICAL HALF DUPLEX RS-485 NETWORK
+5V
ISL3335XE (MASTER)
1kΩ
DI
D
DE485
V_CC
Y
Z
B
RO
R
A
GND
RE485
+
0.1µF
R_T
GENERIC RS-422 Rx (SLAVE)
RO RE
0.1µF
R
+5V
V_CC
B
A
GND
GENERIC FULL DUPLEX RS-422 XCVR (SLAVE)
+5V
+
0.1µF
R_T
V_CC
A
R
RO
B
Z
Y
D
DI
GND
FIGURE 33. TYPICAL RS-422 NETWORK
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FN8775.1
October 21, 2016