MAX3073EEPD+

Overview

The MAX3073EEPD+ is a +3.3V, full-duplex RS-485 transceiver manufactured by Analog Devices/Maxim Integrated. It features one driver and one receiver with ±15kV ESD protection on I/O pins and true fail-safe circuitry that guarantees a logic-high output when inputs are open or shorted. The device incorporates hot-swap capability to prevent false transitions during power-up or insertion. Slew-rate-limited drivers minimize EMI and reflections, supporting error-free data transmission up to 500kbps. It operates within an extended temperature range of -40°C to +85°C.

Feature Summary

• True fail-safe receiver ensures a logic-high output when receiver inputs are open, shorted, or connected to a terminated bus with all transmitters disabled.
• Hot-swap input structure on DE and RE pins eliminates false transitions on the bus during board insertion or power-up sequences.
• Slew-rate-limited drivers reduce electromagnetic interference (EMI) and signal reflections caused by improperly terminated cables.

Applications

• Lighting Systems
• Industrial Control
• Telecom
• Security Systems
• Instrumentation

Procurement Notes

Verify the specific package suffix against official documentation to confirm pinout compatibility and thermal characteristics. Ensure the component meets RoHS standards if required for the target assembly process. Cross-reference the manufacturer's current production status to confirm availability before finalizing procurement plans.

Selection Notes

Select this model for applications requiring full-duplex communication at speeds up to 500kbps with robust ESD protection. It is suitable for environments where hot-swap functionality and fail-safe behavior are critical. Verify that the system voltage aligns with the specified +3.3V supply requirement.

Part Context

This component belongs to the MAX3070E–MAX3079E family of high-speed RS-485 transceivers. The MAX3073 variant specifically provides full-duplex operation with slew-rate limiting optimized for 500kbps data rates. It shares common interface standards and protection features with other members of the series while differing in duplex mode and maximum speed capabilities.

Replacement Considerations

Compatible substitutes within the same family include the MAX3070E, MAX3071E, and MAX3074E. Note that these alternatives may differ in duplex configuration or maximum data rate specifications compared to the MAX3073.