ISL31472EIBZ-T7A

Overview

The ISL31472EIBZ-T7A is a half-duplex RS-485 transceiver manufactured by Renesas Electronics. It operates with a single 5 V supply and supports data rates up to 250 kb/s. The device features overvoltage protection on the differential bus pins, allowing operation with common-mode voltages ranging from -15 V to +15 V. It is housed in an 8-lead SOIC package and functions within an industrial temperature range of -40 °C to +85 °C. The typical operating supply current is 4.5 mA.

Feature Summary

• Integrated overvoltage protection for robust communication in electrically noisy environments
• Half-duplex architecture supporting standard RS-485 differential signaling
• Designed for reliable operation across extended industrial temperature ranges

Applications

• Industrial automation control networks
• Building automation systems
• Process control instrumentation

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging configuration. The T7A designation typically indicates tape and reel packaging, which differs from cut tape or tube formats. Confirm moisture sensitivity level handling requirements prior to assembly to ensure component integrity during soldering processes.

Selection Notes

Select this component when designing RS-485 interfaces requiring high common-mode noise immunity. The integrated overvoltage protection eliminates the need for external clamping diodes in many applications. Ensure the system power supply remains stable at 5 V to maintain signal integrity and compliance with RS-485 electrical standards.

Part Context

This part belongs to the ISL31472E series of RS-485 transceivers. It shares core functional specifications with other variants in the family but differs in packaging and shipping format. The series is designed for general-purpose serial communication where moderate data rates and robust fault protection are required.

Replacement Considerations

Direct substitutes include ISL31472EIBZ for tube packaging or ISL31472EIBZ-T for cut tape. Verify pin compatibility and electrical parameters before substitution. Cross-reference datasheets to ensure equivalent overvoltage protection ratings and thermal performance.