SP491E Datasheet Enhanced Full Duplex RS-485 Transceivers

Manufacturer: Exar (now MaxLinear)

Download the SP491E datasheet PDF. This datasheet also includes the SP490E variant, as both parts are published together in a single manufacturer document.

📥 Download Datasheet

SP491E enhanced full duplex rs-485 transceivers by Exar (now MaxLinear) - Datasheet Preview — Note: The manufacturer provides a single datasheet file (SP490E-Exar.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	SP491E
Manufacturer	Exar (now MaxLinear)
File Size	678.62 KB
Description	Enhanced Full Duplex RS-485 Transceivers
Datasheet	SP491E Datasheet

General 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

Overview

SP490E/491E Enhanced Full Duplex RS-485 Transceivers.

Key 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.

📁 Similar Datasheet

Part Number	Description	Manufacturer
SP491E	Enhanced Full-Duplex RS-485 Transceivers	MaxLinear
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SP491	Full-Duplex RS-485 Transceivers	MaxLinear
SP491	Full Duplex RS-485 Transceivers	Sipex
SP4916	25GHz /4512 PRESCALER	Zarlink Semiconductor

More Datasheets from 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
SP483	Low Power Half-Duplex RS-485 Transceivers
SP483E	Enhanced Low EMI Half-Duplex RS-485 Transceiver
SP485	Low Power Half-Duplex RS-485 Transceivers
SP485E	Enhanced Low Power Half-Duplex RS-485 Transceivers
SP485R	1/10th Unit Load RS-485 Transceiver