ISL32433EIUZ

Overview

The ISL32433EIUZ is a half-duplex transceiver manufactured by Renesas Electronics Corporation, designed for RS-422 and RS-485 communication protocols. It integrates one driver and one receiver within an 8-MSOP surface-mount package. The device operates on a single power supply ranging from 3V to 5.5V and supports data rates up to 1 Mbps. It functions reliably across an industrial temperature range of -40°C to +85°C. Key electrical specifications include a common-mode rejection voltage of 40V and ESD protection ratings of 15kV for human body model and 10kV for machine model.

Feature Summary

• High noise immunity with 40V common-mode rejection capability
• Robust electrostatic discharge protection meeting IEC standards
• Low-power operation suitable for battery-driven applications
• Fail-safe receiver design ensures logic high output during idle states

Applications

• Industrial automation control systems
• Building automation networks
• Data acquisition systems
• Factory floor communication links

Procurement Notes

Verify the specific suffix 'T' if tape-and-reel packaging is required, as the base part number may denote tube packaging. Confirm RoHS3 compliance status for environmental regulations. Check lead times against current manufacturing schedules due to potential supply chain variability. Ensure the 8-MSOP footprint matches the PCB layout constraints before finalizing orders.

Selection Notes

Select this component when designing RS-485/RS-422 interfaces requiring moderate speed and high noise tolerance in compact spaces. Compare against higher-speed variants if data rates exceed 1 Mbps are necessary. Consider thermal performance within the 8-MSOP package for dense board layouts. Verify that the 3V to 5.5V supply range aligns with the system's available power rails.

Part Context

This part belongs to the ISL3243xE series of low-power RS-422/RS-485 transceivers. It shares functional similarities with other members like the ISL32432 but differs in specific pinouts or feature sets. The series is characterized by its ability to operate with minimal external components while providing reliable differential signaling for noisy industrial environments.

Replacement Considerations

Direct substitutes include the MAX3243EIDW from Texas Instruments, which offers similar RS-485 functionality in a SOIC package. Other compatible options may include parts from Analog Devices or NXP, provided they match the 8-pin MSOP form factor and electrical specifications.