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LMS1487E - Low Power RS-485 / RS-422 Differential Bus Transceiver

Description

The LMS1487E is a low power differential bus/line transceiver designed for high speed bidirectional data communication on multipoint bus transmission lines.

It is designed for balanced transmission lines.

Features

  • n Meet ANSI standard RS-485 and RS-422 n Data rate 2.5 Mbps n Single supply voltage operation, 5V n Wide input and output voltage range n Thermal shutdown protection n Short circuit protection n Low quiescent current 660µA (max) n Allows up to 128 transceivers on the bus n Open circuit fail-safe for receiver n Extended operating temperature range.
  • 40˚C to 85˚C n Drop-in replacement to MAX1487E n Available in 8-pin SOIC and 8-pin DIP packages.

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LMS1487E Low Power RS-485 / RS-422 Differential Bus Transceiver November 2003 LMS1487E Low Power RS-485 / RS-422 Differential Bus Transceiver General Description The LMS1487E is a low power differential bus/line transceiver designed for high speed bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines. It meets ANSI Standards TIA/ EIA RS422-B, TIA/EIA RS485-A and ITU recommendation and V.11 and X.27. The driver outputs and receiver inputs have ±15kV ESD protection. The LMS1487E combines a TRI-STATE™ differential line driver and differential input receiver, both of which operate from a single 5.0V power supply.
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