ICL3223ECA

Overview

The Intersil ICL3223ECA is a dual transmitter and dual receiver RS-232 interface integrated circuit designed for operation with supply voltages ranging from 3.0V to 5.5V. It complies with EIA/TIA-232, V.28, and V.24 standards. The device features enhanced automatic powerdown functionality that reduces operating supply current to approximately 1µA when no valid signal is present on the receivers. It provides ±15kV electrostatic discharge (ESD) protection on all pins according to the human body model. The component is housed in a 20-pin SSOP package.

Feature Summary

• Enhanced automatic powerdown mechanism significantly reduces power consumption during idle states by detecting the absence of valid receiver signals.
• Integrated ±15kV ESD protection across all pins ensures robustness against electrostatic discharge events without external components.
• Supports data rates up to 1Mbps while maintaining compatibility with standard RS-232 voltage levels over a wide supply voltage range.

Applications

• Portable battery-powered equipment requiring low standby current
• Industrial control systems needing reliable serial communication
• Handheld terminals and mobile computing devices

Procurement Notes

Verify the specific suffix 'ECA' indicates the SSOP-20 package variant. Confirm RoHS compliance status through official documentation as manufacturing sources may vary. Check for obsolescence notices since Intersil operations have transitioned to Renesas Electronics. Ensure the source document explicitly lists this part number to avoid confusion with similar family members like ICL3221 or ICL3225.

Selection Notes

Select this component when a dual driver/receiver configuration is required for 3V to 5.5V systems. It is suitable for applications prioritizing low power consumption in standby modes due to its automatic powerdown feature. Verify that the SSOP-20 package fits the PCB layout constraints. Compare against alternatives if higher pin counts or different ESD ratings are necessary for the specific design environment.

Part Context

This device belongs to the ICL32XXE series of RS-232 transceivers characterized by low power consumption and high ESD tolerance. The 'E' suffix typically denotes the enhanced powerdown feature set common across this product line. These components serve as critical interface solutions between microprocessors and serial ports in compact electronic designs.

Replacement Considerations

Publicly confirmed substitutes include the ICL3225ECA for single-driver configurations and the ICL3232ECA for quad-driver requirements within the same enhanced family. Cross-reference datasheets to ensure pinout compatibility and identical electrical characteristics before substitution.