ICL3227EIAZA-T

Overview

The ICL3227EIAZA-T is a CMOS RS-232 transceiver from the ICL32xxE series, manufactured by Renesas Electronics. It operates on a single power supply ranging from 3V to 5.5V and supports data rates up to 1Mbps. The device features five drivers and three receivers in a full-duplex configuration. It includes integrated charge pumps requiring only external 0.1µF capacitors. Key electrical parameters include a maximum propagation delay of 0.15µs at load capacitance, high-level output current of 1.0mA, and low-level output current of 1.6mA. It offers ±15kV ESD protection and complies with EIA/TIA-232, V.28/V.24, and IEC61000-4-2 standards.

Feature Summary

• Integrated charge pump design eliminates the need for dual voltage supplies
• High electrostatic discharge (ESD) protection rated at ±15kV
• Compliance with EIA/TIA-232 and V.28/V.24 interface standards
• Low standby current consumption with transmitter/receiver enable control

Applications

• Industrial equipment serial communication interfaces
• Portable battery-powered instrumentation
• Modem and communication terminal connections
• Embedded systems requiring RS-232 connectivity

Procurement Notes

Verify the specific suffix 'A' against the official Renesas datasheet to confirm package type and temperature range specifications. Ensure ordering documentation matches the exact part number ICL3227EIAZA-T to avoid confusion with similar variants in the ICL32xxE family. Cross-reference manufacturer markings with official component identification guides.

Selection Notes

Select this component for applications requiring robust ESD protection and low-power operation within a 3V to 5.5V supply range. The five-driver and three-receiver configuration suits complex serial bus topologies. Consider the SSOP package dimensions and thermal characteristics for PCB layout optimization in space-constrained designs.

Part Context

This device belongs to the ICL32xxE series of low-power RS-232 transceivers. It shares architectural similarities with the ICL3225E and ICL3245E but differs in driver and receiver counts. The series is designed for compatibility with standard TTL/CMOS logic levels while providing reliable serial data transmission over extended distances.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.