ISL32272EIBZ-T

Overview

The ISL32272EIBZ-T is a half-duplex RS-485 transceiver manufactured by Renesas Electronics. It operates from a single 3V to 5.5V supply and supports data rates up to 250kbps. The device features ±15kV IEC61000 ESD protection on the bus pins and offers overvoltage tolerance of ±15V on the differential inputs and outputs. It incorporates full fail-safe receiver circuitry, ensuring a high logic output when inputs are floating or shorted. The component utilizes an SOIC-8 surface-mount package.

Feature Summary

• Integrated ±15kV IEC61000 electrostatic discharge protection on RS-485 bus pins
• Full fail-safe receiver design for reliable operation during open or shorted line conditions
• Overvoltage tolerant inputs and outputs compatible with ±15V common-mode voltages

Applications

• Industrial automation control networks
• Building automation systems
• Utility meter reading infrastructure

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm pinout compatibility and thermal characteristics. Ensure the ordering part number matches the required tape-and-reel quantity specifications. Cross-reference the manufacturer date code with current RoHS compliance declarations prior to final procurement authorization.

Selection Notes

Select this component for applications requiring robust ESD immunity and fault tolerance in noisy industrial environments. The wide common-mode voltage range allows operation in systems with significant ground potential differences. Confirm that the 250kbps data rate meets the system timing requirements before implementation.

Part Context

This device belongs to the ISL32xE series of RS-485/RS-422 interface ICs from Renesas. It provides a cost-effective solution for multi-drop communication networks where standard unit loads limit node counts. The series emphasizes reliability through integrated protection features suitable for harsh electrical environments.

Replacement Considerations

Direct substitutes include the ISL31472EIBZ-T and ISL32472EIBZ-T. Verify pin-to-pin compatibility and ensure the replacement maintains the same overvoltage tolerance and ESD protection ratings as specified in the original design constraints.