MAX3074EESA+T

Overview

The MAX3074EESA+T is a full-duplex RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.3V supply and features one driver and one receiver. The device supports data transmission rates up to 500kbps with slew-rate-limited drivers. It includes ±15kV ESD protection, fail-safe circuitry, and hot-swap capability. The component is housed in an 8-pin SOIC package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Hot-swap input structure on DE and RE pins prevents false transitions during power-up or bus insertion.
• Fail-safe receiver guarantees a logic-high output when inputs are open or shorted while maintaining EIA/TIA-485 compatibility.
• Slew-rate-limited drivers minimize electromagnetic interference (EMI) and reduce reflections for error-free data transmission.

Applications

• Industrial Control
• Telecom
• Security Systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging type and temperature grade. Confirm that the 'T' suffix corresponds to tape-and-reel packaging as indicated in distributor listings. Ensure the component meets RoHS compliance requirements for your target market before finalizing procurement.

Selection Notes

Select this model for applications requiring full-duplex communication at speeds up to 500kbps. It is suitable for systems needing robust ESD protection and fail-safe operation on terminated buses. Consider alternative models from the same family if half-duplex operation or different data rate constraints apply.

Part Context

This component belongs to the MAX3070E–MAX3079E series of +3.3V, ±15kV ESD-protected, fail-safe, hot-swap RS-485 transceivers. The series offers various configurations including different data rates and duplex modes. The MAX3074 variant specifically provides full-duplex operation with a 500kbps maximum data rate.

Replacement Considerations

The MAX3074EASA+ serves as a tube-packaged equivalent. Other family members like the MAX3073E or MAX3075E share similar electrical characteristics but may differ in duplex mode or specific pin configurations.