ICL3222CVZ-T

Overview

The ICL3222CVZ-T is a dual-driver, dual-receiver RS-232 transceiver from the ICL32xxE series. It operates on a single 3.0V to 5.5V supply and meets EIA/TIA-232 and V.28/V.24 specifications at 3.0V. The device features an efficient on-chip charge pump requiring only four small external capacitors. It supports data rates greater than 250kbps under worst-case load conditions. Key electrical parameters include ±15kV ESD protection on all pins (IEC61000-4-2 air gap and human body model) and a standby supply current of 1µA in power-down mode. The component is housed in a TSSOP-20 package.

Feature Summary

• Integrated manual and automatic power-down functions reduce standby supply current to 1µA
• Provides ±15kV electrostatic discharge protection on RS-232 pins
• Operates with a single 3.0V to 5.5V power supply
• Includes efficient on-chip charge pumps for voltage conversion

Applications

• Personal digital assistants (PDAs)
• Notebook and laptop computers
• Portable computing devices

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging when ordering. Confirm the manufacturer designation as Renesas Electronics Corporation or Intersil/IDT depending on the production era. Ensure the specific variant matches the required operating temperature range and package type for the target design.

Selection Notes

Select this component for applications requiring low-power RS-232 communication in portable electronics. It is suitable for systems using 3.3V or 5.0V logic levels. Consider the automatic power-down feature if cable removal detection is required to conserve battery life. Verify that the TSSOP-20 package fits the available PCB space.

Part Context

This part belongs to the ICL32xxE family of RS-232 transceivers designed for low-voltage operation. The family includes variants with different driver/receiver counts, such as the ICL3221, ICL3223, ICL3241, and ICL3243. These devices share common characteristics like 1µA standby current and high ESD protection, targeting mobile and handheld applications.

Replacement Considerations

Compatible substitutes within the same family include ICL3221CVZ-T, ICL3223CVZ-T, ISL3222EIVZ-T, and ISL3222CVZ-T. Verify pin compatibility and functional equivalence before substitution.