参数资料
型号: LTC1387CG#PBF
厂商: Linear Technology
文件页数: 3/12页
文件大小: 0K
描述: IC TXRX RS232/RS485 5VSNGL20SSOP
标准包装: 66
类型: 收发器
驱动器/接收器数: 2/2
规程: RS232,RS485
电源电压: 5V
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
供应商设备封装: 20-SSOP
包装: 管件
产品目录页面: 1355 (CN2011-ZH PDF)
11
LTC1387
U
S
A
O
PPLICATI
WU
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I FOR ATIO
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
RA
RB
DY
DZ
A
B
Y
Z
RA
RB
DY
DZ/SLEW
ON
VCC
RXEN
DXEN
485/232
CONTROLLER
DX
RXEN
DXEN
MODE
INTERFACE
A
B
Y
Z
RS232
RS485
RS232
RS485
RS232
RS485
SHUTDOWN
MODE
RXEN = 1
RXEN = 0
DXEN = 1
DXEN = 0
MODE = 0
MODE = 1
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
RA
RB
DY
DZ
A
B
Y
Z
RA
RB
DY
DZ/SLEW
ON
RXEN
DXEN
485/232
CONTROLLER
DX1
DX2/SLEW
ON
RXEN
DXEN
MODE
INTERFACE
A
B
Y
Z
RS232
RS485
RS232
RS485
RS232
RS485
SHUTDOWN
MODE
ON = 1
ON = 0
RXEN = 1
RXEN = 0
DXEN = 1
DXEN = 0
MODE = 0
MODE = 1
MODE = X
1387 F16
LTC1387
RX1
RX2
RXD
RS232
CTS
TXD
RS232
RTS
RA
RB
DY
DZ
A
B
Y
Z
RA
RB
DY
DZ/SLEW
ON
VCC
RXEN
DXEN
485/232
CONTROLLER
DX
RXEN
DXEN
MODE
INTERFACE
A
B
RS232
RS485
RS232
RS485
SHUTDOWN
MODE
TRANSMIT MODE
RECEIVE MODE
MODE
RXEN = 1
RXEN = 0
RXEN = 1
RXEN = 0
DXEN = 0
DXEN = 1
DXEN = 0
MODE = 0
MODE = 1
MODE = 0
1387 F14
LTC1387
RX
TXD
RXD
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