ICL3222CBZ-T

Overview

The ICL3222CBZ-T is a dual driver and dual receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates from a single +5V supply and supports data rates up to 120 kbps. The device features automatic power-down mode, reducing quiescent current to less than 30 µA when receivers are idle. It includes internal charge pumps that generate the required ±10V supplies for RS-232 communication without external capacitors exceeding specific values. The component is housed in a 16-pin SOIC package.

Feature Summary

• Integrated charge pump circuitry eliminates the need for large external flying capacitors.
• Automatic power-down mode significantly reduces power consumption during idle periods.
• Provides ESD protection on all pins to safeguard against electrostatic discharge events.

Applications

• Portable battery-powered equipment requiring low standby current
• Modems and fax machines utilizing RS-232 serial interfaces
• Point-of-sale (POS) terminals and handheld data collection devices

Procurement Notes

Verify the suffix 'T' indicates tape-and-reel packaging configuration. Confirm the 'CBZ' designation corresponds to the standard commercial temperature range and SOIC-16 package variant. Ensure compatibility with existing PCB footprints for 16-pin narrow body surface-mount packages before procurement.

Selection Notes

Select this component for applications requiring full RS-232 compliance with minimal external passive components. It is suitable for designs prioritizing low power consumption through automatic shutdown features. Consider the 120 kbps data rate limit when evaluating high-speed serial communication requirements compared to faster transceivers.

Part Context

This part belongs to the Intersil ICL322x family of RS-232 transceivers, now produced under Renesas Electronics. The ICL3222 specifically offers two drivers and two receivers, providing a balanced interface solution for bidirectional serial communication in compact electronic systems.

Replacement Considerations

Direct replacements include the ICL3222EIBZ and ICL3222CAIZ. Verify pinout compatibility and electrical specifications such as drive strength and operating voltage ranges before substituting.