ISL3159EIRZ-T7A

Overview

The ISL3159EIRZ-T7A is a low-power RS-485 and RS-422 transceiver manufactured by Renesas Electronics Corporation. It operates from a single 3.3V supply and supports data rates up to 25 Mbps. The device features fail-safe circuitry that ensures a high logic output when inputs are open or disconnected. It includes thermal shutdown protection and ESD ratings exceeding ±15 kV according to the Human Body Model. The component is housed in an 8-lead TSSOP package with an exposed pad for improved thermal performance.

Feature Summary

• Supports RS-485 and RS-422 communication standards
• Integrated fail-safe mechanism for input states
• High electrostatic discharge protection capabilities

Applications

• Industrial automation control systems
• Building automation networks
• Metering infrastructure communication

Procurement Notes

Verify the specific suffix T7A indicates the tape and reel packaging configuration. Confirm the EIRZ designation corresponds to the lead-free RoHS-compliant variant. Ensure the manufacturer source is Renesas Electronics Corporation to avoid counterfeit components.

Selection Notes

Select this component for applications requiring low power consumption and high noise immunity in half-duplex RS-485 environments. Verify that the 3.3V operating voltage aligns with the system logic levels. Consider the thermal requirements of the TSSOP package for dense PCB layouts.

Part Context

This model belongs to the ISL315x family of transceivers designed for robust serial communication. It shares functional similarities with other devices in the series but is distinguished by its specific pinout, packaging, and drive strength characteristics tailored for industrial reliability.

Replacement Considerations

Cross-reference with ISL3159EIBZ for leaded versions or ISL3159EIBZ-T7A for equivalent reel packaging. Verify compatibility with existing board footprints and electrical specifications before substitution.