MAX3442EEPA+

Overview

The MAX3442EEPA+ is a half-duplex RS-485 transceiver in an 8-pin PDIP package. It operates from a 4.75V to 5.25V supply with a typical current of 30mA and supports data rates up to 250kbps. The device features ±15kV ESD protection on A/B pins and ±60V fault protection. It includes low-power shutdown mode (20µA max) via separate DE and RE controls, enhanced slew-rate limiting for error-free transmission, true fail-safe receiver inputs, and hot-swap capability.

Feature Summary

• ±60V Fault Protection
• Low-Power Shutdown Mode
• Enhanced Slew-Rate Limiting

Applications

• RS-485 Communications
• Industrial Networks
• HVAC Controls

Procurement Notes

Verify the specific EEPA suffix indicates the PDIP package variant. Confirm RoHS compliance status as indicated by the plus sign. Check lead availability through authorized Analog Devices distributors.

Selection Notes

Select this part for applications requiring low-speed (250kbps) RS-485 communication with reduced EMI. Use when separate driver and receiver enable signals are needed for precise control or power management.

Part Context

Part of the MAX3440E-MAX3444E family. Shares pinout and core functionality with MAX3440E/MAX3444E but differs in speed and control logic compared to MAX3441E/MAX3443E.

Replacement Considerations

MAX3440EEPA+ offers identical performance without shutdown. MAX3444EEPA+ provides J1708 compatibility with combined DE/RE control.

FAQ

How does the MAX3442EEPA+ achieve low power consumption?

It enters a shutdown mode consuming 20µA max when DE is pulled low and RE is pulled high.

What is the purpose of the enhanced slew-rate limiting?

It minimizes electromagnetic interference (EMI) and reduces signal reflections on improperly terminated cables.