ICL3225CP

Overview

The Intersil ICL3225CP is a dual transmitter and dual receiver RS-232 transceiver designed for operation with supply voltages ranging from +3.0V to +5.5V. It supports data rates up to 1Mbps while maintaining compliance with EIA/TIA-232 standards. The device incorporates enhanced automatic powerdown circuitry that reduces operating supply current to approximately 1µA during idle periods, making it suitable for battery-powered applications. It features ±15kV electrostatic discharge (ESD) protection on all pins. The component utilizes a 20-pin Plastic Dual In-line Package (PDIP) for through-hole mounting.

Feature Summary

• Enhanced automatic powerdown functionality significantly reduces power consumption when the interface is inactive
• Integrated ±15kV ESD protection on all signal pins ensures robustness against static discharge events
• Single-ended output configuration provides standard RS-232 voltage levels compatible with legacy systems

Applications

• Battery-operated portable devices requiring low standby current
• Industrial control systems utilizing RS-232 communication protocols
• Embedded systems interfacing with modems or serial peripherals

Procurement Notes

Verify the specific suffix 'CP' against official Renesas/Intersil documentation to confirm package type and temperature range specifications. Ensure compatibility with existing PCB footprints for 20-pin PDIP assemblies. Cross-reference RoHS compliance status with current manufacturing records as product lines may undergo revisions.

Selection Notes

Select this component when a dual driver/receiver configuration is required within a single IC footprint. Consider the 1Mbps speed limit and 3V-to-5.5V operating range against system requirements. Evaluate the need for automatic powerdown features versus continuous active operation in the target application environment.

Part Context

This part belongs to the ICL32XXE family of RS-232 transceivers manufactured by Intersil, now part of Renesas Electronics. The 'E' designation typically indicates enhanced features such as improved ESD protection and lower power consumption compared to earlier generations. The ICL3225 variant specifically offers two drivers and two receivers.

Replacement Considerations

Direct replacements include the ICL3225ECPZ for lead-free PDIP-20 variants. Verify pinout compatibility before substituting with other RS-232 transceivers from different manufacturers.