RS232/RS485 Multiprotocol Transceiver

Posted on Jul 16, 2012

The RS232 transceiver supports both RS232 and EIA-562 standards, whereas the RS485 transceiver supports both RS485 and RS422 standards. The logic input (MODE) selects between RS232 and RS485 modes. With three additional control logic inputs (RXEN, DXEN and ON), the LTC1387 adapts easily, as shown in Table 1, to various communications needs, including a one-signal-line RS232 I/O mode.

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