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LMS1485 - 5V Low Power RS-485 Differential Bus Transceiver

Datasheet Summary

Description

The LMS1485 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 n n n n n n n n n n n n n n Meet ANSI standard RS-485-A and RS-422-B Data rate 30Mbps Single supply voltage operation, 5V Wide input and output voltage range Thermal shutdown protection Short circuit protection Driver propagation delay 10ns Receiver propagation delay 25ns High impedance outputs with power off Open circuit fail-safe for receiver Extended operating temperature range.
  • 40˚C to 85˚C ESD rating 8kV HBM Drop-in replacement to ADM1485 and LT1485 Available in 8-pin SOIC Low sup.

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Datasheet Details

Part number LMS1485
Manufacturer National Semiconductor
File Size 224.32 KB
Description 5V Low Power RS-485 Differential Bus Transceiver
Datasheet download datasheet LMS1485 Datasheet
Additional preview pages of the LMS1485 datasheet.

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Full PDF Text Transcription

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LMS1485 5V Low Power RS-485 Differential Bus Transceiver July 2003 LMS1485 5V Low Power RS-485 Differential Bus Transceiver General Description The LMS1485 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 LMS1485 combines a TRI-STATE™ differential line driver and differential input receiver, both of which operate from a single 5.0V power supply. The driver and receiver have an active high and active low, respectively, that can be externally connected to function as a direction control.
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