MAX3077EASA+

Overview

The MAX3077EASA+ is a full-duplex RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features one driver and one receiver, operating on a single 3.3V supply (3V to 3.6V). The device supports data rates up to 16Mbps with unrestricted slew rates. It includes ±15kV ESD protection on I/O pins, fail-safe circuitry ensuring a logic-high output when inputs are open or shorted, and hot-swap capability for safe bus insertion. The component operates within an industrial temperature range of -40°C to +125°C and is housed in an 8-SOIC package.

Feature Summary

• Hot-swap input structure prevents false transitions during power-up or hot insertion
• Fail-safe receiver guarantees a logic-high output when inputs are open or shorted
• Unrestricted driver slew rate enables high-speed transmission up to 16Mbps
• Robust protection against electrostatic discharge on all I/O pins

Applications

• Industrial Control Systems
• Telecommunications Equipment
• Security Systems
• Lighting Systems
• Instrumentation

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature rating. Confirm that the '+ ' designation indicates lead-free compliance. Ensure the supplier provides valid traceability documentation. Cross-reference the manufacturer part number with official Analog Devices catalogs to validate authenticity before purchase.

Selection Notes

Select this component for applications requiring full-duplex communication at speeds up to 16Mbps. It is suitable for environments demanding robust ESD protection and fail-safe operation. Verify compatibility with the system's 3.3V power supply. Consider the 8-SOIC package dimensions for PCB layout constraints.

Part Context

The MAX3077EASA+ belongs to the MAX3070E–MAX3079E family of high-speed RS-485 transceivers. This series shares common features such as fail-safe receivers and hot-swap capabilities. The MAX3077E specifically offers full-duplex operation with unrestricted slew rates, distinguishing it from lower-speed variants like the MAX3072E or MAX3074E.

Replacement Considerations

The MAX3077EESA+ serves as a direct pin-compatible replacement offering the same electrical characteristics in an alternative SOIC package width.