MAX487ECSA+T

Drivers, Receivers, Transceivers Overview

The MAX487ECSA+T is a half-duplex RS-485/RS-422 transceiver in an 8-SOIC package. It supports data rates up to 250kbps with a supply voltage range of 4.75V to 5.25V. The device features ±15kV ESD protection, a 70mV receiver hysteresis, and a low-power shutdown mode consuming 0.5µA. Operating temperature ranges from 0°C to +70°C.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate-limited driver minimizes electromagnetic interference (EMI) and reduces reflections on improperly terminated cables.
• Quarter-unit-load receiver input impedance allows connection of up to 128 transceivers on the bus.
• Integrated thermal shutdown circuitry protects against excessive power dissipation by placing outputs in a high-impedance state.

Drivers, Receivers, Transceivers Applications

• Industrial-control local area networks
• Low-power RS-485 communication systems
• EMI-sensitive applications requiring reduced signal harmonics

Drivers, Receivers, Transceivers Procurement Notes

Verify the suffix 'C' indicates the commercial temperature range (0°C to +70°C). Confirm the '+T' designation corresponds to tape-and-reel packaging. Ensure the component matches the Analog Devices Inc./Maxim Integrated manufacturer identification for authenticity.

Drivers, Receivers, Transceivers Selection Notes

Select this model when designing for multipoint bus networks requiring up to 128 nodes. Choose this part over standard unit-load variants if higher node density is necessary. Verify that the 250kbps maximum data rate meets the system timing requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX48x family of low-power transceivers designed for harsh environments. It shares pin compatibility with non-'E' versions but adds enhanced electrostatic discharge protection structures without latchup.

Drivers, Receivers, Transceivers Replacement Considerations

MAX487ESA+T: Identical electrical specifications with an extended industrial temperature range (-40°C to +85°C).

Drivers, Receivers, Transceivers FAQ

How does the MAX487E reduce electromagnetic interference?

It utilizes a slew-rate-limited driver which minimizes high-frequency harmonics and reduces reflections caused by improperly terminated cables.

What is the maximum number of devices supported on the bus?

The quarter-unit-load receiver input impedance allows up to 128 MAX487E transceivers to be connected on a single bus.

How is the low-power shutdown mode activated?

Shutdown is initiated by bringing the Receiver Enable (RE) pin high and the Driver Enable (DE) pin low simultaneously.