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SP491E - Enhanced Full Duplex RS-485 Transceivers

Download the SP491E datasheet PDF. This datasheet also covers the SP490E variant, as both devices belong to the same enhanced full duplex rs-485 transceivers family and are provided as variant models within a single manufacturer datasheet.

Description

The SP490E is a low power differential line driver/receiver meeting RS-485 and RS-422 standards up to 10Mbps.

The SP491E is identical to the SP490E with the addition of driver and receiver tri-state enable lines.

Both products feature ±200mV receiver input sensitivity, over wide common mode range.

Features

  • +5V Only.
  • Low Power BiCMOS.
  • Driver/Receiver Enable (SP491E).
  • RS-485 and RS-422 Drivers/Receivers.
  • Pin Compatible with LTC490 and SN75179 (SP490E).
  • Pin Compatible with LTC491 and SN75180 (SP491E).
  • Improved ESD Specifications: ±15kV Human Body Model ±15kV IEC61000-4-2 Air Discharge Now Available in Lead Free Packaging.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (SP490E-Exar.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
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SP491 Full Duplex RS-485 Transceivers Sipex
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Other Datasheets by Exar (now MaxLinear)

Part Number Description
SP491 Full Duplex RS-485 Transceivers
SP490 Full Duplex RS-485 Transceivers
SP490E Enhanced Full Duplex RS-485 Transceivers
SP4082E 5V RS-485/RS-422 Transceivers
SP481E Enhanced Low Power Half-Duplex RS-485 Transceivers

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
SP490E/491E Enhanced Full Duplex RS-485 Transceivers FEATURES • +5V Only • Low Power BiCMOS • Driver/Receiver Enable (SP491E) • RS-485 and RS-422 Drivers/Receivers • Pin Compatible with LTC490 and SN75179 (SP490E) • Pin Compatible with LTC491 and SN75180 (SP491E) • Improved ESD Specifications: ±15kV Human Body Model ±15kV IEC61000-4-2 Air Discharge Now Available in Lead Free Packaging DESCRIPTION The SP490E is a low power differential line driver/receiver meeting RS-485 and RS-422 standards up to 10Mbps. The SP491E is identical to the SP490E with the addition of driver and receiver tri-state enable lines. Both products feature ±200mV receiver input sensitivity, over wide common mode range.
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