ICL3226IA

Overview

The ICL3226IA is a single driver and single receiver RS-232 transceiver manufactured by Intersil. It operates from a single 3V to 5.5V power supply, making it suitable for low-voltage applications. The device supports data rates up to 120 kbps and features ±7.5V output voltages compliant with EIA/TIA-232 standards. It includes internal charge pumps that require only four external 0.1µF capacitors. The component is available in an 8-pin SOIC package and is designed for industrial temperature ranges.

Feature Summary

• Single driver and single receiver configuration for point-to-point communication
• Internal charge pump eliminates need for external dual voltage supplies
• Compliance with EIA/TIA-232 electrical specifications

Applications

• Industrial control systems requiring serial communication
• Portable battery-powered equipment due to low voltage operation
• Modem interfaces and printer ports

Procurement Notes

Verify the specific suffix 'IA' against the manufacturer's current datasheet to confirm package type and temperature range. Ensure compatibility with system voltage levels and signal integrity requirements before integration. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a single channel of RS-232 communication is required in a space-constrained design. It is appropriate for systems operating between 3V and 5.5V where external negative voltage generation is undesirable. Consider pinout compatibility if replacing legacy designs.

Part Context

This component belongs to the Intersil ICL322x series of RS-232 transceivers. The series offers various configurations including single, dual, and quad drivers/receivers. The ICL3226 variant specifically provides one driver and one receiver, balancing performance and pin count for simple serial links.

Replacement Considerations

Direct replacements include MAX3226 from Analog Devices or ST3226 from STMicroelectronics. Verify pin compatibility and capacitor requirements when substituting. Ensure the alternative part meets the same ESD protection and data rate specifications.