ICL3232CVZ

Overview

The ICL3232CVZ is a dual RS-232 transmitter/receiver manufactured by Renesas Electronics Corporation, designed for operation within a single power supply range of 3.0 V to 5.5 V. It supports full-duplex communication with two drivers and two receivers, achieving data rates up to 250 kb/s under worst-case load conditions. The device operates on 3.3 V or 5 V supplies with a typical operating current of 1 mA. It utilizes a TSSOP-16 surface-mount package and functions reliably across an ambient temperature range of 0 °C to +70 °C.

Feature Summary

• Compliant with EIA/TIA-232 and V.28/V.24 specifications at 3.0 V supply voltage
• Integrated charge pump requiring only four external 0.1 µF capacitors
• Provides ±15 kV electrostatic discharge protection on RS-232 pins
• Latch-up free design ensuring robust performance

Applications

• Personal Digital Assistants (PDAs) and Palmtops
• Notebook and laptop computers
• Portable battery-powered equipment

Procurement Notes

Verify the specific suffix 'CVZ' against the manufacturer's official datasheet to confirm the exact temperature grade and RoHS compliance status. Confirm that the TSSOP-16 package matches the target PCB footprint requirements. Ensure the component meets the required humidity sensitivity level for the intended assembly process.

Selection Notes

Select this component when a low-power RS-232 interface is required for 3.3 V or 5 V systems without needing automatic powerdown features. Note that unlike other members of the ICL32xxE family, the ICL3232 variant lacks manual and automatic powerdown functions. Verify that the 250 kb/s data rate satisfies the application's throughput needs.

Part Context

This part belongs to the Intersil ICL32xx series of RS-232 transceivers, now produced by Renesas Electronics. The series is engineered for portable electronics where board space and power consumption are critical constraints. The ICL3232 specifically serves as a low-power upgrade for legacy HIN232/ICL232 devices while maintaining pin compatibility.

Replacement Considerations

The ICL3232 is documented as a drop-in replacement for MAX3232, SP3243, and HIN232. Verify pinout and electrical characteristics against these specific competitor models before substitution.