MAX3079EEPD

Overview

The MAX3079EEPD+ is a full-duplex RS-422/RS-485 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates one driver and one receiver in a 14-pin PDIP package with a 0.300-inch (7.62mm) width. The device operates on a single 3V to 3.6V supply voltage and supports data rates up to 16Mbps. It features ±15kV ESD protection on all ports and fail-safe circuitry that guarantees a logic-high receiver output when inputs are open or shorted. The component functions within an operating temperature range of -40°C to +85°C.

Feature Summary

• Full-duplex communication capability supporting RS-422 and RS-485 protocols
• Integrated fail-safe mechanism ensuring high receiver output during bus idle or fault conditions
• Robust electrostatic discharge protection rated at ±15kV across all interfaces

Applications

• Industrial automation networks requiring reliable half or full duplex communication
• Building automation systems utilizing RS-485 multi-drop configurations
• Process control instrumentation connected via serial communication buses

Procurement Notes

Verify the complete part number including the '+' suffix, which indicates RoHS compliance, against the specific procurement requirement. Confirm the package type corresponds to the 14-PDIP variant rather than surface-mount alternatives like SOIC. Ensure the supplier source provides official documentation from Analog Devices or Maxim Integrated to validate authenticity and technical specifications.

Selection Notes

Select this component for designs requiring full-duplex operation with high-speed data transmission up to 16Mbps. It is suitable for applications needing robust ESD protection and fail-safe functionality without external components. Consider the through-hole PDIP package if board space allows and manual assembly or prototyping is preferred over surface-mount technologies.

Part Context

This device belongs to the MAX3070E–MAX3079E family of 3.3V RS-485/RS-422 transceivers. These devices share common architectural features such as low power consumption and high ESD immunity. The MAX3079 specifically distinguishes itself with higher data rate capabilities compared to lower-speed variants within the same series, making it appropriate for faster industrial communication standards.

Replacement Considerations

The MAX3079EAPD+ serves as a direct pin-compatible alternative within the same package family. Other members of the MAX307x series may offer similar functionality but potentially different data rate limits or package options. Verify electrical parameters and pinout compatibility before substituting.