MAX3076EASD+T

Overview

The MAX3076EASD+T is a full-duplex RS-485 transceiver operating from a single 3.3V supply. It features one driver and one receiver with no slew-rate limiting, supporting data rates up to 16Mbps. The device includes fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. Hot-swap capability on the DE and RE pins prevents false transitions during power-up or hot insertion. It provides ±15kV ESD protection on I/O pins and draws 800μA of supply current in normal operation.

Feature Summary

• Full-duplex communication architecture with independent driver and receiver paths
• Hot-swap input structure on enable pins to eliminate bus contention during insertion
• Fail-safe receiver design ensuring high output state under open or shorted conditions
• High electromagnetic compatibility performance due to unrestricted driver slew rates

Applications

• Industrial control systems requiring robust serial communication
• Telecommunications equipment utilizing RS-485 networks
• Security systems with multiple node connectivity
• Instrumentation devices needing high-speed data transfer

Procurement Notes

Verify the specific suffix 'ASD' corresponds to the SOIC-14 package and industrial temperature range (-40°C to +125°C). Confirm the '+T' designation indicates tape-and-reel packaging for automated assembly. Ensure the component meets RoHS compliance standards required by your manufacturing facility before finalizing orders.

Selection Notes

Select this component when full-duplex operation and high data rates up to 16Mbps are required. It is suitable for environments where hot-swap functionality is necessary to protect the bus during board insertion. Unlike slew-rate limited variants, this model prioritizes speed over EMI reduction, making it ideal for shorter cable runs or properly terminated lines.

Part Context

This part belongs to the MAX3070E–MAX3079E family of 3.3V RS-485 transceivers. While other members in the series offer reduced slew rates for lower speeds or half-duplex configurations, the MAX3076E specifically targets high-speed full-duplex applications. It shares common features like fail-safe outputs and thermal shutdown with its siblings but distinguishes itself through its unrestricted driver performance.

Replacement Considerations

The MAX3077E and MAX3078E are functionally similar within the same family but may differ in duplex mode or pin configuration. Verify electrical characteristics and package dimensions against the MAX3076EASD+T datasheet before substitution to ensure compatibility with existing PCB layouts and system requirements.