ISL33334E Datasheet, PDF (17/23 Pages) Intersil Corporation – Operates from a single 3.3V supply

Tx/Rx
+3.3V
ISL3333XE
V_CC
RO
RA
RE
B
DE
DI
D
Z
Y
GND
ISL33334E, ISL33337E
GENERIC 1/2 DUPLEX 485 XCVR
RO RE DE DI
+
0.1µF
0.1µF
R
V_CC
+3.3V OR +5V
D
B/Z
GND
A/Y
R_T
GENERIC 1/2 DUPLEX 485 XCVR
+3.3V OR +5V
+
0.1µF
V_CC
RO
R
RE
B/Z
A/Y
DE
DI
D
R_T
GND
FIGURE 32. TYPICAL HALF DUPLEX RS-485 NETWORK
+3.3V
ISL3333XE (MASTER)
1kΩ
DI
D
DE
V_CC
Y
Z
B
RO
R
A
GND
RE485
.
+
0.1µF
GENERIC 422 Rx (SLAVE)
RO RE
0.1µF
+3.3V OR +5V
R
V_CC
B
A
GND
R_T
GENERIC FULL DUPLEX 422 XCVR (SLAVE)
+3.3V OR +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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FN8776.1
October 21, 2016