MAX3077EMSA/PR2+T

Overview

The MAX3077EMSA/PR+T is a full-duplex RS-485 transceiver featuring one driver and one receiver. It operates on a single 3.3V supply with ±15kV ESD protection on I/O pins. The device supports data rates up to 16Mbps with unrestricted slew rates. It includes fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. Hot-swap capability prevents false transitions during power-up or insertion. The component operates within an extended temperature range of -55°C to +125°C.

Feature Summary

• Full-duplex communication architecture for simultaneous transmission and reception
• Hot-swap input structure on DE and RE pins to eliminate bus contention during insertion
• Fail-safe receiver design ensuring a defined high state under open or shorted conditions
• High-speed operation up to 16Mbps without slew-rate limitations

Applications

• Industrial control systems requiring robust RS-485 connectivity
• Telecommunications equipment utilizing differential signaling
• Security systems with long-distance data transmission needs
• Instrumentation networks operating in harsh environments

Procurement Notes

Verify the specific suffix /PR2+T against official documentation to confirm tape-and-reel packaging and lead-free status. Confirm the manufacturer designation matches Analog Devices Inc./Maxim Integrated records. Ensure the ordering code aligns with current production status before finalizing procurement orders.

Selection Notes

Select this component for applications requiring full-duplex RS-485 communication at speeds up to 16Mbps. The extended industrial temperature range of -55°C to +125°C makes it suitable for demanding environments. Verify that the system does not require shutdown mode, as this specific variant lacks low-current shutdown functionality compared to other family members.

Part Context

This part belongs to the MAX3070E–MAX3079E series of 3.3V RS-485 transceivers. Unlike half-duplex variants in the same family, the MAX3077E provides dedicated transmit and receive paths. It shares common features like hot-swap protection and fail-safe thresholds with siblings such as the MAX3076E and MAX3078E.

Replacement Considerations

Publicly confirmed substitutes include MAX3076EMSA/PR+T and MAX3078EMSA/PR+T from the same family. These alternatives share identical pinouts and electrical characteristics but differ in duplex configuration or specific package availability.