ICL3222ECP

Overview

The ICL3222ECP is a dual driver, dual receiver RS-232 transceiver manufactured by Intersil. It operates within a supply voltage range of 3.0V to 5.5V and supports data rates up to 120kbps. The device features ±15kV ESD protection on all RS-232 pins and includes an automatic powerdown function that reduces standby current to approximately 1µA. Packaged in a 20-pin PDIP format, it meets EIA/TIA-232 and V.28/V.24 specifications.

Feature Summary

• Integrated automatic powerdown circuitry for low standby power consumption
• Robust ±15kV electrostatic discharge protection on interface pins
• Compliance with standard RS-232 electrical specifications at 3V operation

Applications

• Portable computers and notebook systems requiring low power interfaces
• Personal digital assistants (PDAs) and handheld devices
• Industrial control systems with serial communication requirements

Procurement Notes

Verify the specific suffix 'ECP' against official Renesas or Intersil documentation to confirm package type and temperature grade. Confirm RoHS compliance status as manufacturing processes evolve. Check for end-of-life notices or obsolescence warnings before finalizing procurement plans.

Selection Notes

Select this component when a dual-channel RS-232 solution is required for battery-powered applications. Ensure the design accommodates the external charge pump capacitors necessary for voltage generation. Verify that the 120kbps speed meets system timing requirements compared to higher-speed alternatives.

Part Context

This part belongs to the ICL32XXE family of low-power RS-232 transceivers designed for 3V to 5.5V operation. It serves as a successor to earlier 5V-only devices, enabling integration into modern low-voltage logic systems while maintaining compatibility with legacy RS-232 standards.

Replacement Considerations

ICL3222ECAZA: Surface mount SSOP-16 variant with similar electrical characteristics but different pinout and package dimensions.