MAX33046EASA+

Overview

The MAX33046EASA+ is a half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 3.0V to 5.5V, with a typical quiescent current of 6mA in active mode and 1µA in shutdown mode. The device supports data rates up to 20Mbps, featuring a differential driver propagation delay of 40ns and a receiver propagation delay of 75ns. It is housed in an 8-pin SOIC package (S8+2C) and rated for an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrated ±40kV ESD protection on A/B lines per JEDEC JS-001 and IEC 61000-4-2 standards
• True fail-safe receiver guarantees logic-high output during input short or open events
• Hot-swap capability prevents false transitions during board insertion into powered backplanes
• Thermal-shutdown circuitry disables outputs when junction temperature exceeds +160°C

Applications

• Programmable Controller systems
• Factory Automation Equipment
• Motion Controllers
• Encoder Interfaces
• Backplane Buses

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging format. The base part number indicates standard tube packaging, while the 'T' suffix denotes tape-and-reel configuration. Confirm RoHS compliance status through the manufacturer's certification documents before finalizing procurement specifications.

Selection Notes

Select the MAX33046EASA+ over the MAX33045E variant when system requirements demand data transmission speeds up to 20Mbps. Ensure the application environment necessitates the specified ±40kV ESD tolerance and ±25V fault protection capabilities. Verify that the 1/8-unit load characteristic aligns with the intended bus topology requiring support for up to 256 nodes.

Part Context

This component belongs to the MAX33045E/MAX33046E family of high-speed, low-power RS-485/RS-422 transceivers. It shares identical pinouts and physical dimensions with the MAX33045E, differing primarily in maximum guaranteed data rate specifications. Both devices utilize the same 8-pin SOIC package and offer comparable protection features for industrial communication networks.

Replacement Considerations

The MAX33045EASA+ serves as a direct pin-compatible alternative within the same series, offering identical functionality at a reduced maximum data rate of 500kbps. No other cross-model replacements are confirmed in the provided documentation.