ICL3232EIA

Overview

The ICL3232EIA is a low-power RS-232 transceiver manufactured by Intersil (Renesas). It integrates two drivers and two receivers, supporting full-duplex communication at data rates up to 250 kb/s. The device operates on a single power supply ranging from 3 V to 5.5 V, with a typical operating current of 1 mA. It utilizes an SSOP-16 surface-mount package and includes internal charge pumps requiring only four external capacitors. The component provides ±15 kV ESD protection on RS-232 pins and meets EIA/TIA-232 specifications down to 3 V.

Feature Summary

• Integrated dual charge pump architecture for efficient voltage generation
• Robust electrostatic discharge protection on serial interface pins
• Automatic powerdown functionality to minimize standby consumption
• Compliance with standard RS-232 electrical requirements

Applications

• Portable computing devices such as PDAs and palmtops
• ISDN terminal adaptors and network peripherals
• Notebook and laptop computer serial interfaces

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm pinout compatibility and environmental compliance status. Ensure the ordering code matches the required package style and temperature range. Cross-reference the manufacturer's latest datasheet revision to validate active status and any recent design changes before finalizing procurement.

Selection Notes

Select this component when designing systems requiring low power consumption alongside standard RS-232 connectivity. It serves as a direct replacement for legacy parts like the MAX207E in 3V applications. Consider the SSOP-16 footprint constraints and the requirement for small external capacitors during layout planning.

Part Context

This part belongs to the ICL32XXE family of low-power RS-232 transceivers designed for battery-operated equipment. The series emphasizes reduced standby current through automatic powerdown features while maintaining performance at lower supply voltages compared to traditional 5V-only counterparts.

Replacement Considerations

Public confirmed substitute part numbers include MAX207E and HIN207E.