MAX3077EAPA+

Overview

The MAX3077EAPA+ is a +3.3V, full-duplex RS-485 transceiver featuring one driver and one receiver in an 8-pin PDIP package. It supports data rates up to 16Mbps with unrestricted slew rates. The device includes fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. It provides ±15kV ESD protection on I/O pins and incorporates hot-swap capability to prevent false transitions during power-up or insertion. Supply current is 1.5mA maximum, and it operates within a temperature range of -40°C to +85°C.

Feature Summary

• Full-duplex communication architecture with independent driver and receiver paths
• Hot-swap input structure prevents erroneous bus transitions during board insertion
• Fail-safe receiver ensures logic-high output under open or shorted line conditions
• ±15kV Human Body Model ESD protection on all I/O pins

Applications

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

Procurement Notes

Verify the specific suffix 'PA+' corresponds to the PDIP-8 through-hole package variant. Confirm the 'E' grade indicates the industrial temperature range of -40°C to +85°C. Check for RoHS compliance status as indicated by the '+' suffix. Ensure the source document explicitly lists this exact part number configuration before ordering.

Selection Notes

Select this component for applications requiring full-duplex RS-485 communication at speeds up to 16Mbps. It is suitable for environments needing robust ESD protection and fail-safe operation without slew-rate limiting. Note that shutdown mode is not available for this specific model variant; verify power management requirements against other family members if low-power standby is critical.

Part Context

This device belongs to the MAX3070E–MAX3079E family of high-speed RS-485 transceivers. Within this series, the MAX3077E is designated specifically for full-duplex operation with unrestricted driver slew rates. It shares common features like fail-safe circuitry and hot-swap inputs with siblings such as the half-duplex MAX3078E and the pin-selectable MAX3079E.

Replacement Considerations

Publicly confirmed substitutes include the MAX3078EAPA+ (half-duplex) and MAX3079EAPA+ (pin-selectable duplex). Verify interface compatibility as the MAX3078E lacks the second receiver path required for full-duplex signaling.