MAX487ECPA+

Drivers, Receivers, Transceivers Overview

The MAX487ECPA+ is a low-power, half-duplex RS-485 and RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver in an 8-pin Plastic DIP package. The device supports data rates up to 250kbps with slew-rate-limited drivers to minimize EMI. It operates from a single +5V supply (4.75V to 5.25V) and features ±15kV ESD protection on all I/O pins. The receiver input has a fail-safe feature guaranteeing a logic-high output if the input is open circuit. Additionally, it offers a low-current shutdown mode consuming only 0.5µA when both RE is high and DE is low.

Drivers, Receivers, Transceivers Feature Summary

• Slew-rate-limited drivers reduce electromagnetic interference and reflections for error-free transmission up to 250kbps.
• Integrated ±15kV electrostatic discharge protection on driver outputs and receiver inputs without latchup.
• Fail-safe receiver input guarantees a logic-high output state when the differential input terminals are left open.
• Low-power shutdown mode reduces supply current to typically 0.5µA when driver and receiver are disabled.

Drivers, Receivers, Transceivers Applications

• Industrial-control local area networks
• Transceivers for EMI-sensitive applications
• Level translators

Drivers, Receivers, Transceivers Procurement Notes

Verify the component marking and pin configuration against the official datasheet to confirm authenticity. Ensure the ordering suffix matches the required temperature range and package type. Check for RoHS compliance documentation as specified by the manufacturer. Confirm that the supplier provides traceability records for quality assurance purposes.

Drivers, Receivers, Transceivers Selection Notes

Select this part for half-duplex RS-485 or RS-422 communication systems requiring reduced EMI due to its slew-rate-limited drivers. It is suitable for harsh environments needing robust ESD protection. Choose this variant over non-E versions when higher reliability against static discharge is required. Consider the 8-pin PDIP package for through-hole mounting requirements.

Drivers, Receivers, Transceivers Part Context

This component belongs to the MAX48xE family of low-power transceivers designed for RS-485 and RS-422 communications. It shares functional compatibility with other members like the MAX481E and MAX485E but is distinguished by its specific slew-rate limitation and 1/4-unit-load receiver impedance allowing up to 128 nodes on the bus.

Drivers, Receivers, Transceivers Replacement Considerations

The MAX487ECSA+ is a surface-mount equivalent in an SO package. The MAX487ESA+ is available in an extended temperature range. Verify pinout compatibility before substitution.