ICL3222CPZ

Overview

The Intersil ICL3222CPZ is a dual driver, dual receiver RS-232 transceiver designed for +3.0V to +5.5V power supplies. It supports data rates up to 120kbps and features ±15kV ESD protection on all pins. The device operates within a temperature range of 0°C to +70°C and consumes low supply current. Packaged in a 20-pin TSSOP, it integrates charge pumps to generate required voltages from a single supply.

Feature Summary

• Integrated charge pump circuitry eliminates the need for external capacitors in some configurations or reduces component count.
• Provides robust electrostatic discharge protection meeting ±15kV standards across all signal interfaces.
• Ensures compatibility with standard RS-232 voltage levels while operating from low-voltage single supplies.

Applications

• Portable battery-powered equipment requiring serial communication
• Industrial control systems with RS-232 connectivity needs
• Modem and fax machine interface circuits

Procurement Notes

Verify the specific suffix 'CPZ' indicates lead-free RoHS compliance and tape-and-reel packaging if applicable, though 'PZ' often denotes tube. Confirm the manufacturer source is Intersil or Renesas Semiconductor. Ensure the order matches the exact pinout and electrical specifications defined in the official datasheet FN4900.

Selection Notes

Select this component when a dual-channel RS-232 solution is required for low-power applications. Compare against the ICL3223E for higher speed requirements up to 250kbps. Consider the ICL3221E if only a single driver is needed. Verify that the 120kbps rate meets the system timing constraints.

Part Context

This part belongs to the ICL32XXE family of low-power RS-232 transceivers. These devices are characterized by their ability to operate from a single +3V to +5.5V supply. The family includes variants with different numbers of drivers and receivers, such as the ICL3221E (1/1) and ICL3223E (2/2 high speed).

Replacement Considerations

The ICL3223ECPZ offers similar functionality but supports higher data rates up to 250kbps. The MAX3222EIA+ from Maxim Integrated is a functional equivalent with comparable pinouts and electrical characteristics. Verify pin compatibility before substitution.