參數(shù)資料
型號(hào): LTC1387ISW
廠商: LINEAR TECHNOLOGY CORP
元件分類: 通用總線功能
英文描述: Single 5V RS232/RS485 Multiprotocol Transceiver
中文描述: LINE TRANSCEIVER, PDSO20
封裝: 0.300 INCH, PLASTIC, SOP-20
文件頁數(shù): 11/12頁
文件大?。?/td> 167K
代理商: LTC1387ISW
11
LTC 1387
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S
A
O
PPLICATI
U
U
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Figure 14. Full-Duplex RS232 (1-Channel), Half-Duplex RS485
R
A
R
B
D
Y
D
Z
A
B
Y
Z
R
A
R
B
D
Y
D
Z
/SLEW
ON
RXEN
V
CC
DXEN
485/232
CONTROLLER
DX
RXEN
DXEN
MODE
INTERFACE
A
B
Y
Z
RS232
RS485
RS232
RS485
RS485
RS485
MODE = 0
RS232
MODE
RXEN = 1
DXEN = 1
RS485
MODE
RXEN = 1
DXEN = 1
MODE = 1
SHUTDOWN
MODE
RXEN = 0
DXEN = 0
MODE = X
1387 F15
LTC1387
RX
RXD
TXD
Figure 15. Full-Duplex RS232 (1-Channel), Full-Duplex RS485/RS422
Figure 16. Full-Duplex RS232 (2-Channel), Full-Duplex RS485/RS422 with SLEW Control
R
A
R
B
D
Y
D
Z
A
B
Y
Z
R
A
R
B
D
Y
D
Z
/SLEW
ON
RXEN
DXEN
485/232
CONTROLLER
DX1
DX2/SLEW
ON
RXEN
DXEN
MODE
INTERFACE
A
B
Y
Z
RS232
RS485
RS232
RS485
RS485
RS485
MODE = 0
RS232
MODE
ON = 1
RXEN = 1
DXEN = 1
RS485
MODE
ON = 1
RXEN = 1
DXEN = 1
MODE = 1
SHUTDOWN
MODE
ON = 0
RXEN = 0
DXEN = 0
MODE = X
1387 F16
LTC1387
RX1
RX2
RXD
RS232
CTS
TXD
RS232
RTS
R
A
R
B
D
Y
D
Z
A
B
Y
Z
R
A
R
B
D
Y
D
Z
/SLEW
ON
RXEN
V
CC
DXEN
485/232
CONTROLLER
DX
RXEN
DXEN
MODE
INTERFACE
A
B
RS232
RS232
RS485
RS485
MODE = 0
RS232
MODE
RXEN = 1
DXEN = 0
RS485
RS485
SHUTDOWN
MODE
RXEN = 0
DXEN = 0
MODE = 0
TRANSMIT MODE RECEIVE MODE
RXEN = 0
DXEN = 1
MODE = 1
RXEN = 1
DXEN = 0
MODE = 1
1387 F14
LTC1387
RX
TXD
RXD
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