ICL3243CVZ

Overview

The ICL3243CVZ is a full-duplex RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in a 28-SOIC surface-mount package. It integrates three drivers and five receivers to support complex serial communication interfaces. The device operates on a single power supply ranging from 3V to 5.5V and supports data rates up to 250kbps. Key electrical characteristics include a receiver hysteresis of 300mV and an operating supply current of approximately 1mA. It functions within a commercial temperature range of 0°C to 70°C and includes on-chip charge pumps requiring only four external 0.1µF capacitors.

Feature Summary

• Integrates manual and automatic powerdown features to significantly reduce standby supply current.

Applications

• Portable devices such as PDAs and palmtops requiring low power consumption.

Procurement Notes

Verify the specific suffix 'CVZ' against official Renesas documentation to confirm exact temperature grade and packaging specifications. Ensure compatibility with existing board layouts regarding the 28-SOIC footprint and capacitor placement for the internal charge pumps.

Selection Notes

Select this component when designing systems that require multiple transmit and receive lines within a single interface channel. It is suitable for mixed voltage environments supporting both 3.3V and 5.0V logic levels while maintaining compliance with EIA/TIA-232 standards at lower supply voltages.

Part Context

This part belongs to the ICL32XX family of low-power RS-232 transceivers originally developed by Intersil and now produced by Renesas. The family is designed as drop-in replacements for legacy MAXIM and SP series devices, offering improved power efficiency through advanced charge pump technology and reduced external component counts.

Replacement Considerations

Publicly confirmed substitute part numbers include MAX3243EIDW and MAX3243EIDWR from Texas Instruments.