ICL3224EIA-T

Overview

The ICL3224EIA-T is a low-power RS-232 transceiver manufactured by Intersil, now part of Renesas Electronics. It operates from a single +3V to +5.5V supply and supports data rates up to 500 kb/s. The device integrates one driver and two receivers in an SSOP-20 package. Key electrical specifications include a maximum operating voltage of 5.5 V, a minimum of 3 V, and a typical quiescent current of 10 uA. It functions within a temperature range of -40°C to +85°C and includes ESD protection features compliant with RS-232 standards.

Feature Summary

• Integrates one driver and two receivers for full-duplex communication
• Supports data transmission rates up to 500 kb/s
• Operates on a single power supply ranging from 3 V to 5.5 V
• Includes built-in electrostatic discharge (ESD) protection

Applications

• RS-232 serial communication interfaces
• Industrial control systems requiring low-power connectivity
• Portable equipment with battery-powered operation constraints

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging if required for automated assembly. Confirm the manufacturer designation as Intersil or Renesas based on the production era. Check for export restrictions associated with the component origin. Ensure the SSOP-20 package matches the target PCB footprint. Validate that the industrial temperature range meets environmental requirements.

Selection Notes

Select this component when a single-supply RS-232 solution is needed with minimal power consumption. The 500 kb/s rate suits standard baud rates but may be insufficient for high-speed applications. Compare against the ICL3225E series if higher data rates or different pin configurations are necessary. Ensure the design accommodates the external capacitors required for charge pump operation.

Part Context

The ICL3224 belongs to the ICL32xx family of RS-232 transceivers designed for low-voltage operation. It serves as a bridge between microprocessor logic levels and RS-232 signal voltages. The 'EIA' suffix typically denotes the SSOP-20 package variant. This model represents an evolution of earlier CMOS RS-232 drivers, focusing on reduced current draw while maintaining compatibility with standard RS-232 protocols.

Replacement Considerations

Publicly confirmed substitutes include the ICL3225EIA for higher speed requirements. The MAX3222 is a common alternative from Maxim Integrated offering similar functionality. Verify pin-to-pin compatibility before substitution. Check if the replacement supports the same voltage range and ESD protection levels.