ISL3232EIRZ

Overview

The ISL3232EIRZ is a dual RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in a 16-lead QFN package. It operates on a single power supply ranging from 2.7 V to 5.5 V and supports data rates up to 250 kb/s. The device provides full-duplex communication with two drivers and two receivers. Key electrical specifications include a maximum operating current of 1 mA and ±15 kV ESD protection on all pins. It functions within an industrial temperature range of -40°C to +85°C and complies with EIA/TIA-232 and V.28/V.24 standards.

Feature Summary

• Integrated ±15 kV electrostatic discharge (ESD) protection on transmit and receive lines for enhanced robustness.
• Capable of meeting EIA/TIA-232 and V.28/V.24 protocol specifications across the full operating voltage range.
• Features low quiescent current consumption suitable for battery-powered applications.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Portable equipment utilizing low-voltage power supplies.
• Modems and fax machines adhering to standard RS-232 protocols.

Procurement Notes

Verify the specific suffix 'IRZ' confirms the QFN-16 package and lead-free RoHS compliance when sourcing. Confirm moisture sensitivity level handling requirements during assembly. Ensure the supplier provides valid traceability documentation matching the Renesas manufacturing origin.

Selection Notes

Select this component for designs requiring dual-channel RS-232 connectivity in a compact footprint. Compare against the ICL3232EIV-16Z-T if a TSSOP-16 package is preferred instead of QFN. Verify that the 2.7 V minimum supply voltage aligns with the system's available power rails.

Part Context

This part belongs to the ISL3232E series of low-power RS-232 transceivers. It shares functional similarities with other members like the ISL4223EIRZ-T7A but differs in package type and pin count. The series is designed for applications needing robust serial data transmission in space-constrained environments.

Replacement Considerations

The ICL3232EIV-16Z-T serves as a functional equivalent offering identical electrical performance in a TSSOP-16 package. Designers must account for the physical footprint difference between QFN and TSSOP layouts when substituting.