MAX3077EEPA+

Overview

The MAX3077EEPA+ is a full-duplex RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 3.3V supply and supports data rates up to 16Mbps with unrestricted driver slew rates. The device features fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It includes hot-swap capability on the DE and RE pins to prevent false transitions during power-up or insertion. ESD protection is rated at ±15kV on I/O pins. The component is housed in an 8-pin Plastic DIP package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Full-duplex communication architecture supporting high-speed data transmission up to 16Mbps
• Integrated fail-safe mechanism ensuring a defined logic-high state under open or shorted bus conditions
• Hot-swap input structure on enable pins to eliminate erroneous data transitions during board insertion
• Robust electrostatic discharge protection rated at ±15kV on all I/O pins

Applications

• Industrial control systems requiring reliable serial communication
• Telecommunications equipment utilizing RS-485 networks
• Security systems with distributed sensor nodes
• Instrumentation devices operating in electrically noisy environments

Procurement Notes

Verify the specific suffix EEPA+ corresponds to the 8-pin PDIP package and industrial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation, as lead-free variants may carry distinct ordering codes. Cross-reference the manufacturer part number with authorized distributor catalogs to ensure authenticity and traceability before procurement.

Selection Notes

Select this component for applications requiring full-duplex RS-485 connectivity at speeds up to 16Mbps. Ensure the design utilizes a 3.3V power supply, as the device does not support other voltage levels. Verify that the PCB layout accommodates the 8-pin DIP footprint if through-hole mounting is required. Consider the thermal dissipation characteristics when deploying multiple units in enclosed spaces.

Part Context

The MAX3077E belongs to the MAX3070E–MAX3079E family of 3.3V RS-485 transceivers. This series differentiates models based on duplex mode and slew-rate limitations. While similar parts like the MAX3072E offer half-duplex operation, the MAX3077E is specifically designed for simultaneous bidirectional data transfer. The EEPA+ designation indicates the plastic DIP packaging variant within this product line.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.