ICL3223CAZ-T

Overview

The ICL3223CAZ-T is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation. It integrates two drivers and two receivers, supporting data rates up to 500 kb/s. The device operates from a single power supply ranging from 3 V to 5.5 V, with a typical operating supply current of 1 mA. It features automatic power-down mode when no signal activity is detected for 300 ms, reducing current consumption to less than 30 µA. The component utilizes external 0.1 µF capacitors for charge pumping and is housed in an SSOP-20 package.

Feature Summary

• Integrates dual drivers and dual receivers for full RS-232 communication capability within a compact footprint.
• Incorporates automatic power-down functionality that activates upon idle bus conditions to minimize energy usage.
• Provides enhanced electrostatic discharge protection on all pins to safeguard against human body model events.

Applications

• Portable battery-powered equipment requiring low standby current
• Modems and portable instruments utilizing serial communication
• Industrial control systems with RS-232 interface requirements

Procurement Notes

Verify the specific suffix 'CAZ-T' against official Renesas documentation to confirm tape-and-reel packaging and temperature grade. Ensure compatibility with existing PCB footprints for the SSOP-20 package. Confirm availability status as distribution listings may vary. Cross-reference RoHS compliance details directly with the manufacturer's latest datasheet before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring dual-channel RS-232 connectivity with strict power constraints. It is suitable for applications needing automatic sleep modes to extend battery life. Compare pinout configurations with alternative models if space is limited. Verify that the 500 kb/s data rate meets the system's transmission speed requirements without necessitating higher-performance alternatives.

Part Context

This part belongs to the ICL3223 series of RS-232 transceivers, which are designed for low-voltage operation. The series typically includes variants with different packaging options and temperature ranges. The CAZ-T designation indicates a specific manufacturing lot or packaging configuration within the broader product family offered by Renesas and its predecessor Intersil.

Replacement Considerations

Direct substitutes include the ISL3223ECAZ-T and ICL3223IAZ-T. These components share similar electrical characteristics and pinouts but may differ in ESD protection levels or operating temperature ranges. Verify functional equivalence regarding driver/receiver counts and voltage specifications before substitution.