ICL3222CBZ

Overview

The ICL3222CBZ is a full-duplex RS-232 transceiver manufactured by Renesas Electronics Corporation. It integrates two drivers and two receivers within a single package, supporting data rates up to 120 kbps. The device operates from a single 3V to 5.5V power supply and includes internal charge pumps to generate the required ±10V output swings without external components. It features low supply current of 300 µA in shutdown mode and is housed in a 16-pin SOIC package suitable for surface mount applications.

Feature Summary

• Integrates dual drivers and dual receivers for full RS-232 communication
• Internal charge pumps eliminate need for external capacitors
• Low power consumption with dedicated shutdown mode
• Single-supply operation compatible with 3V and 5V systems

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered equipment due to low power profile
• Modem interfaces and printer ports
• Embedded systems with limited board space

Procurement Notes

Verify the specific suffix 'CBZ' against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering quantity aligns with standard tube packaging configurations provided by distributors. Cross-reference the part number with official Renesas databases to validate active status and availability before finalizing procurement plans.

Selection Notes

Select this component when a compact solution for dual-channel RS-232 communication is required. It is suitable for designs needing low standby current and simplified bill of materials due to integrated charge pumps. Compare performance metrics such as data rate limits and operating voltage ranges against alternative transceivers to ensure fit for the specific application environment.

Part Context

This part belongs to the ICL322x series of RS-232 transceivers from Renesas. The series typically includes variants like the ICL3222 (dual driver/receiver) and ICL3243 (triple driver/quintuple receiver). These devices are designed to replace older discrete solutions or larger packages, offering improved integration and lower power consumption for modern embedded applications.

Replacement Considerations

The MAX3222EIDR from Texas Instruments is a documented functional substitute. Verify pin-to-pin compatibility and electrical parameter alignment, such as supply voltage range and data rate capabilities, before implementing any replacement in existing designs.