ICL3241IB

Overview

The Intersil ICL3241IB is a low-power RS-232 transceiver designed for portable applications, operating within a 3.0V to 5.5V supply voltage range. It integrates three drivers and five receivers, providing a complete serial port solution compliant with EIA/TIA-232 and V.28/V.24 standards. The device features ±15kV electrostatic discharge (ESD) protection on all RS-232 pins, ensuring robustness in harsh environments. It supports data rates up to 250kbps and includes an automatic power-down mode that reduces supply current to 1µA when the cable is disconnected. The component utilizes small external capacitors and is available in TSSOP-28 packaging.

Feature Summary

• Integrated automatic power-down functionality minimizes standby power consumption by detecting cable disconnection
• High-level ESD protection ensures signal integrity and component safety against static discharge events
• Low-voltage operation enables compatibility with modern 3.3V and 5.0V mixed-system architectures

Applications

• Personal Digital Assistants (PDAs)
• Laptop and sub-notebook computers
• Handheld battery-powered equipment

Procurement Notes

Verify the specific suffix 'IB' against official Renesas/Intersil documentation to confirm temperature grade and package variant. Ensure the ordering information matches the required industrial or commercial specifications. Cross-reference the manufacturer's latest datasheet to validate pinout compatibility and electrical characteristics before procurement.

Selection Notes

Select this component for designs requiring a full RS-232 interface with minimal power usage. It is suitable for systems needing three transmit and five receive lines. Consider the TSSOP-28 package constraints for PCB layout. Verify that the application environment falls within the specified operating temperature range for the 'IB' suffix variant.

Part Context

The ICL3241 belongs to the Intersil ICL32x×E series of low-power RS-232 transceivers. This family is engineered for portable electronics where battery life and board space are critical. The device replaces older, higher-power transceivers by offering similar performance at reduced voltages and currents.

Replacement Considerations

Publicly confirmed substitute part numbers for the ICL3241IB are not available in the provided reference material.