ICL3222IVZ-T

Overview

The ICL3222IVZ-T is a dual driver, dual receiver RS-232 transceiver manufactured by Renesas Electronics. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s. The device features full-duplex communication with single-ended receivers and includes an automatic power-down function for low standby current consumption of 1 mA. It provides 15 kV ESD protection on all pins and functions reliably across an industrial temperature range from -40 °C to +85 °C. The component is housed in a TSSOP-20 surface-mount package.

Feature Summary

• Integrated automatic power-down circuitry that reduces supply current when the cable is disconnected or peripheral is off
• High electrostatic discharge protection rating of 15 kV on all signal pins
• Efficient internal charge pump design enabling operation with small external capacitors

Applications

• Portable computing devices such as PDAs and notebook computers
• Laptop computer serial port implementations
• Industrial equipment requiring robust RS-232 connectivity

Procurement Notes

Verify the specific suffix IVZ-T against official Renesas documentation to confirm the TSSOP-20 package and industrial temperature grade. Confirm RoHS compliance status through the manufacturer's current datasheet. Ensure moisture sensitivity level requirements are met during storage and handling procedures prior to assembly.

Selection Notes

Select this component for designs requiring low power consumption in battery-operated systems. The automatic shutdown feature distinguishes it from non-shutdown variants like the ICL3232. Verify compatibility with 3.3 V and 5.0 V logic levels. Ensure the TSSOP-20 footprint fits the PCB layout constraints compared to other package options in the family.

Part Context

This part belongs to the ISL32xx family of one-microamp RS-232 transmitters and receivers. The family includes variants with different driver/receiver counts and shutdown capabilities. The ICL3222 specifically offers two drivers and two receivers with shutdown functionality, targeting applications where board space and power efficiency are critical constraints.

Replacement Considerations

The ICL3222EIVZ-T is a verified equivalent within the same series offering identical electrical characteristics and pinout configuration.