Datasheet

LTC2872
26
2872f
Figure 29. RS232 ↔ RS485 Conversion
Figure 30. RS485 Repeater
Typical applicaTions
2872 F29
LTC2872
DY2RA1
RA2
Y2
A1
RS485
OUT
RS485
IN
RS232
IN
RS232
OUT
Y1
Z2
A2
B2
DY1
120Ω
2872 F29
LTC2872
DY2RA1
RA2
Y2
Z2
A2
B2
A1
B1
Y1
Z1
DY1
120Ω
120Ω
120Ω
120Ω
V
CC
= 3V to 5.5V, V
L
= 1.7V to V
CC
. Logic input pins not shown are tied to a valid logic
state. External components necessary for operation are not shown.