ICL3222CAZ-T

Overview

The ICL3222CAZ-T is a CMOS RS-232 transceiver from the ICL32xxE series, manufactured by Renesas Electronics. It features two drivers and two receivers in a full-duplex configuration. The device operates on a single 3V to 5.5V supply with a typical operating current of 1mA. It supports data rates up to 250 kb/s and includes 15kV ESD protection on all pins. The component is housed in a 20-pin SSOP package and complies with V.28/V.24, EIA/TIA-232, and IEC61000-4-2 standards.

Feature Summary

• Integrated 15kV human body model ESD protection on all RS-232 signal pins
• Automatic power-down mode reduces quiescent current during idle periods
• CMOS technology enables low power consumption compatible with 3V and 5V systems

Applications

• Industrial equipment serial communication interfaces
• Portable battery-powered devices requiring low power operation
• Data acquisition systems with RS-232 connectivity requirements

Procurement Notes

Verify the specific suffix 'CAZ' against official Renesas documentation to confirm package type and temperature range. Distributor listings may vary in accuracy regarding the exact suffix designation. Ensure the ordering part number matches the required industrial or commercial grade specifications before procurement.

Selection Notes

Select this component for applications requiring dual driver/receiver functionality with robust ESD protection. Compare pinout compatibility with existing designs when replacing legacy parts. Verify that the 250 kb/s data rate meets system timing requirements. Confirm package availability in SSOP-20 format for PCB layout constraints.

Part Context

This part belongs to the ICL32xxE family of low-power RS-232 transceivers. It succeeds earlier Intersil designs and integrates modern CMOS features into the classic MAXIM-compatible form factor. The series is widely used in embedded systems needing reliable serial communication with minimal external components.

Replacement Considerations

Direct pin-to-pin replacements include the ICL3222EIAZ-T and ICL3222EIVZ-T. Verify temperature ranges and package variations (SSOP vs TSSOP) when substituting. Cross-reference with MAX3222 equivalents if sourcing from alternative manufacturers.