ICL3232IAZ

Overview

The ICL3232IAZ is a dual driver, dual receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates within a supply voltage range of 3.0 V to 5.5 V and supports data rates up to 250 kb/s. The device features ±15 kV ESD protection on all RS-232 lines and includes an internal charge pump requiring only four external 0.1 µF capacitors. Packaged in a 16-pin SSOP, it functions as a full-duplex transceiver compliant with EIA/TIA-232 and V.28/V.24 standards.

Feature Summary

• Integrated charge pump eliminates the need for external inductors or transformers
• Robust electrostatic discharge protection rated at ±15 kV on signal lines
• Receiver hysteresis provides improved noise immunity in noisy environments
• Low standby power consumption reduces battery drain in portable applications

Applications

• Personal Digital Assistants (PDAs) and handheld devices
• Laptop computers and notebook systems
• Modems and peripheral equipment interfaces
• Digital cameras and cellular/mobile phones

Procurement Notes

Verify the specific suffix 'IAZ' against the manufacturer's current datasheet to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 16-pin SSOP configuration. Confirm RoHS compliance status through official documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing systems requiring low-power RS-232 communication in space-constrained portable electronics. It serves as a direct replacement for legacy Intersil parts and offers pin compatibility with certain competitor devices. Verify that the required data rate does not exceed 250 kb/s and that the operating environment falls within the industrial temperature range.

Part Context

This part belongs to the ICL3232 series of RS-232 transceivers designed for 3V to 5.5V operation. It is part of Renesas's portfolio derived from Intersil technology, focusing on low-power solutions for mobile and battery-operated devices. The series emphasizes small footprint and minimal external component requirements.

Replacement Considerations

The ICL3232EIV-16Z-T is a verified alternative within the same family offering similar electrical characteristics. Other compatible options include the ICL3232CVZ and ICL3232IBNZ, though package variations such as TSSOP or SOIC must be evaluated for mechanical fit.