ICL3243IAZ

Overview

The ICL3243IAZ is an RS-232 transceiver manufactured by Renesas Electronics Corporation, housed in a 28-pin SSOP package. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates one driver and five receivers, with a typical operating supply current of 1 mA. It functions reliably across an industrial temperature range from -40 °C to +85 °C. This component provides ESD protection and is designed for low-power applications requiring single-ended receiver signal types.

Feature Summary

• Integrates manual and automatic powerdown features to minimize standby power consumption
• Includes on-chip voltage converters requiring only four external capacitors
• Provides 15 kV ESD protection per the human body model

Applications

• Personal Digital Assistants (PDAs)
• Palmtop computers
• Notebook and laptop computers

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to End-of-Life status. Confirm RoHS compliance details and moisture sensitivity level prior to assembly. Check for available stock from secondary market suppliers as standard distribution may be limited.

Selection Notes

Select this component for systems requiring five receive lines and one transmit line within a compact SSOP footprint. Ensure design compatibility with 3.3 V and 5.0 V mixed-voltage environments. Verify that the 500 kb/s data rate meets interface requirements and that the industrial temperature range suits the operational environment.

Part Context

This part belongs to the ICL3243 series of low-power RS-232 transceivers. It serves as a drop-in replacement for legacy devices such as the MAX3243 and SP3243. The series is optimized for battery-operated portable electronics where power efficiency and board space are critical constraints.

Replacement Considerations

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