ICL3232IBZ

Overview

The ICL3232IBZ is a dual RS-232 transceiver manufactured by Renesas Electronics Corporation, designed for operation within a 3.0V to 5.5V power supply range. It supports full-duplex communication with two drivers and two receivers, achieving data rates up to 250kbps while complying with EIA/TIA-232 and V.28/V.24 standards. The device features ±15kV electrostatic discharge (ESD) protection on all RS-232 pins and operates across an industrial temperature range of -40°C to +85°C. Packaged in a 16-pin SOIC-Narrow format, it draws approximately 1mA of operating current.

Feature Summary

• Integrated charge pump circuitry enables single-supply operation without requiring external negative voltage sources.
• Robust ±15kV ESD protection ensures signal integrity and component safety against human body model discharges.
• Automatic shutdown functionality reduces standby power consumption when the serial cable is disconnected.

Applications

• Portable computing devices such as laptops and notebooks requiring low-power serial connectivity.
• Personal digital assistants (PDAs) and handheld computers utilizing compact interface solutions.
• Industrial control systems operating within extended temperature environments.

Procurement Notes

Verify the specific suffix 'IBZ' against official Renesas documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for SOIC-16 packages. Confirm RoHS compliance status through the manufacturer's latest datasheet before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring dual-channel RS-232 communication with minimal external capacitance. Consider the ICL3232EIV variant if lower quiescent current or TSSOP packaging is required. Evaluate system power constraints to ensure the 1mA operating current aligns with battery life requirements.

Part Context

This part belongs to the ICL32xxE series of RS-232 transceivers, which are engineered for low-voltage portable electronics. The family shares common architectural features including internal charge pumps and ESD protection, differing primarily in driver/receiver counts and package configurations.

Replacement Considerations

The ICL3232IBNZ serves as a direct pin-compatible alternative within the same product line. Verify that the substitute maintains identical electrical characteristics and thermal performance for the intended application environment.