LTC2871CFE#PBF Linear Technology, LTC2871CFE#PBF Datasheet - Page 17
LTC2871CFE#PBF
Manufacturer Part Number
LTC2871CFE#PBF
Description
IC, RS232-RS485 TXRX, 200MBPS, 5.5V, TSSOP-38
Manufacturer
Linear Technology
Datasheet
1.LTC2871CFEPBF.pdf
(36 pages)
Specifications of LTC2871CFE#PBF
Device Type
Transceiver
No. Of Drivers
2
Supply Voltage Range
3V To 5.5V
Driver Case Style
TSSOP
No. Of Pins
38
Operating Temperature Range
0°C To +70°C
Rohs Compliant
Yes
Ic Interface Type
RS232, RS485
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
FUNCTION TABLES
Table 1. LTC2870 Mode Selection Table
Table 2. LTC2871 Mode Selection Table (CH2 = 0)
Table 3. RS232 Receiver Mode (485/232 = 0 for LTC2870, CH2 = 0 for LTC2871)
Table 4. RS232 Driver Mode (485/232 = 0 for LTC2870, CH2 = 0 for LTC2871)
RX232 OR RXEN
DX232 OR DXEN
FEN
FEN
0
0
1
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
1
0
0
0
0
1
1
485/232
RX232
X
0
X
0
0
1
1
1
1
1
1
0
1
1
X
0
X
X
X
X
X
0
(A, B, RIN1, RIN2)
RECEIVER INPUTS
RXEN
DX232
(DY , DZ, DIN1, DIN2)
1
1
1
X
0
X
0
X
X
X
0
0
X
X
X
X
X
X
X
0
0
1
DRIVER INPUTS
X
0
1
X
DXEN
X
X
0
1
RX485
0
0
0
1
X
1
X
X
X
X
X
X
X
X
X
X
X
X
1
1
0
0
TE485
Thermal Fault
CONDITIONS
DX485
0
X
0
X
X
X
X
1
X
X
X
X
No Fault
No Fault
No Fault
0
0
X
X
1
X
X
X
X
X
H/F
X
X
X
X
X
X
X
X
0
1
X
X
TE485
Thermal Fault
CONDITIONS
X
X
X
X
X
X
X
X
0
0
No Fault
No Fault
No Fault
LB
X
X
X
X
0
0
0
0
0
0
1
1
(RA, RB, ROUT1, ROUT2)
RECEIVER OUTPUTS
DC/DC
CONVERTER MODE AND COMMENTS
OFF
OFF
ON
ON
ON
ON
ON
ON
X
X
ON
ON
H/F
X
X
X
X
X
X
X
X
0
1
Hi-Z
Hi-Z
LB
X
X
0
0
0
0
0
0
1
1
1
0
DC/DC
CONVERTER MODE AND COMMENTS
OFF
ON
ON
ON
ON
ON
X
X
ON
ON
LTC2870 DRIVER OUTPUTS
Low Power Shutdown: All Main Functions Off
Low Power Shutdown: All Main Functions Off
Fast-Enable: DC/DC Converter On Only
RS232 Drivers On
RS232 Receivers On
RS485 Driver On
RS485 Receiver On
RS485 Driver and Receiver 120Ω Termination Enabled
RS485 Full-Duplex Mode
RS485 Half-Duplex Mode
RS485 Loopback Mode
RS232 Loopback Mode
125kΩ
125kΩ
(Y , Z)
LTC2870 RECEIVER INPUTS
1
0
Low Power Shutdown: All Main Functions Off
Fast-Enable: DC/DC Converter On Only
RS232 Drivers On
RS232 Receivers On
RS485 Driver On
RS485 Receiver On
RS485 Full-Duplex Mode
RS485 Half-Duplex Mode
RS485 Loopback Mode
RS232 Loopback Mode
125kΩ
(A, B)
LTC2870/LTC2871
5kΩ
5kΩ
5kΩ
LTC2871 DRIVER OUTPUTS
LTC2871 RECEIVER INPUTS
(DOUT1, DOUT2)
(RIN1, RIN2)
Hi-Z
Hi-Z
1
0
Hi-Z
5kΩ
5kΩ
5kΩ
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