ltc2871fe Linear Technology Corporation, ltc2871fe Datasheet - Page 27

• Manufacturer Part Number: ltc2871fe
• Description: Ltc2870/ltc2871 - Rs232/rs485 Multiprotocol Transceivers With Integrated Termination
• Manufacturer: Linear Technology Corporation

TYPICAL APPLICATIONS
CONTROLLER
CONTROLLER
Figure 39. LTC2870: Using External Connections for Half-Duplex RS232 or RS485 Operation
Figure 38. LTC2870: Making Use of Shared I/O for Various Communication Configurations
V
V
L
L
1.7V TO V
V
DXEN
RXEN
485/232
H/F
TE485
DY
DZ
RA
RB
V
DXEN
RXEN
485/232
H/F
DY
DZ
RA
RB
1.7V TO V
L
L
CC
CC
LTC2870
LTC2870
GND
GND
TE485
28701 F38
28701 F39
V
V
CC
CC
A
B
3V TO 5.5V
3V TO 5.5V
A
B
Y
Z
Y
Z
FULL-DUPLEX
485/232 = 1
H/F = 0
RS485
RS485
RS485
RS485
RS485
HALF-DUPLEX
485/232 = 1
H/F = 0
RS485
RS485
RS485
HALF-DUPLEX
485/232 = 1
H/F = 1
RS485
RS485
RS485
HALF-DUPLEX
485/232 = 0
H/F = X
RS232
RS232
RS232
FULL-DUPLEX
485/232 = 0
LTC2870/LTC2871
H/F = X
RS232
RS232
RS232
RS232
RS232
CONNECTOR
CONNECTOR
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