UM3491, UM3488 - RS-422 Transceivers

Union Semiconductor

The UM3491 by Union Semiconductor is a RS-422 Transceivers. Below is the official datasheet preview.

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UM3491 RS-422 Transceivers by Union Semiconductor - Datasheet Preview — Official preview page of the **UM3491** RS-422 Transceivers datasheet (Union Semiconductor).

Datasheet Details

Part number	UM3491, UM3488
Manufacturer	UniON Semiconductor
File Size	310.78 KB
Description	RS-422 Transceivers
Datasheet	UM3488-UnionSemiconductor.pdf
Note	This datasheet PDF includes multiple part numbers: UM3491, UM3488. Please refer to the document for exact specifications by model.
Additional preview pages of the UM3491 datasheet.

UM3491 Product details

Description

The UM3488/UM3491 is ±15kV electrostatic discharge (ESD)-protected, high-speed transceivers for RS-422 communication that contain one driver and one receiver.

Features

fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The UM3488/UM3491 allows transmit speeds up to 10Mbps. The device features enhanced ESD protection. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model. These transceivers typically draw 180µA of supply current when u.

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Published: Jan 14, 2019 |