MAX3073EESD+T

Overview

The MAX3073EESD+T is a +3.3V, full-duplex RS-485 transceiver featuring one driver and one receiver in a 14-pin SO package. It supports data rates up to 500kbps with slew-rate-limited drivers. The device operates from a single 3.3V supply with a typical supply current of 1.5mA and includes ±15kV ESD protection on I/O pins. It incorporates 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.

Feature Summary

• Slew-rate-limited drivers minimize electromagnetic interference and reduce reflections for error-free transmission at speeds up to 500kbps.
• Integrated hot-swap input structure on DE and RE pins eliminates false bus transitions during board insertion or power-up sequences.
• True fail-safe receiver design ensures a logic-high output state when the differential receiver inputs are left open or shorted.

Applications

• Industrial control systems
• Telecommunications equipment
• Security systems
• Lighting systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm the tape-and-reel packaging format intended by the 'T' designation. Confirm the component meets RoHS compliance standards as indicated in the manufacturer's datasheet before finalizing procurement specifications.

Selection Notes

Select this model for applications requiring full-duplex communication with data rates up to 500kbps. Ensure the system utilizes a 3.3V power supply and requires robust ESD protection alongside fail-safe receiver behavior for reliable operation in electrically noisy industrial environments.

Part Context

This component belongs to the MAX3070E–MAX3079E family of high-speed RS-485/RS-422 transceivers manufactured by Analog Devices / Maxim Integrated. The series provides various options for duplex modes and data rates within a standardized pinout architecture designed for flexible integration into serial communication networks.

Replacement Considerations

The MAX3074E and MAX3075E serve as direct functional replacements within the same family, offering identical electrical characteristics and pin configurations for full-duplex 500kbps operations.

FAQ

What is the maximum data rate supported by the MAX3073E?

The MAX3073E supports transmit speeds up to 500kbps due to its slew-rate-limited driver design.

How does the device handle open or shorted receiver inputs?

The integrated fail-safe circuitry guarantees a logic-high receiver output if the receiver inputs are open or shorted.

Is the MAX3073E capable of half-duplex operation?

No, the MAX3073E is specifically intended for full-duplex communications only.