ICL3222EIBZ-T

Overview

The ICL3222EIBZ-T is a dual driver and dual receiver RS-232 interface integrated circuit manufactured by Renesas Electronics. It operates on a single 3V to 5.5V power supply and complies with EIA/TIA-232 and V.28/V.24 standards. The device features two independent drivers and two receivers, providing full duplex communication. It includes an automatic power-down mode that reduces supply current to less than 1µA when inputs are unconnected or grounded. The component is housed in an 18-pin SOIC wide package.

Feature Summary

• Integrated automatic power-down mode for significant current reduction during idle states
• Single 3V to 5.5V power supply operation capability
• Full duplex data transmission with two drivers and two receivers
• Compliance with EIA/TIA-232 and V.28/V.24 interface specifications

Applications

• Portable battery-powered equipment requiring low standby current
• Industrial control systems utilizing RS-232 serial communication
• Modems and fax machines interfacing with host processors
• Point-of-sale terminals and handheld data collection devices

Procurement Notes

Verify the specific suffix 'T' indicates tape and reel packaging configuration rather than functional differences. Confirm RoHS compliance status through official datasheets as manufacturing processes may vary. Check current lifecycle status as this component may be discontinued or subject to last-time buy restrictions. Ensure compatibility with existing PCB footprint designs for the 18-pin SOIC wide package.

Selection Notes

Select this component when dual channel RS-232 communication is required with minimal quiescent current consumption. Compare against similar models like the ICL3221E if only one driver is needed. Verify voltage level compatibility with the target system's logic levels. Consider the operating temperature range requirements for the intended application environment before finalizing the selection.

Part Context

This part belongs to the ICL3222 series of RS-232 transceivers designed for low-power applications. It shares functional similarities with other Intersil/Renesas interface chips but offers specific pinout and performance characteristics tailored for portable electronics. The series emphasizes energy efficiency through its unique power-down feature set.

Replacement Considerations

Direct substitutes include the ICL3222EIBZ without the tape and reel suffix. Cross-reference with ISL3222E variants for potential pin-compatible alternatives. Verify electrical parameters match exactly before replacing in existing designs.