ICL3225EIAZ-T

Overview

The ICL3225EIAZ-T is a CMOS RS-232 transceiver from the ICL32xxE series, manufactured by Renesas Electronics. It operates on a single +3V to +5.5V supply and features one driver and two receivers for full-duplex communication. The device supports data rates up to 250 kb/s with a maximum propagation delay of 0.15μs at specified load conditions. It provides ±15kV ESD protection on all pins and includes enhanced automatic powerdown functionality to reduce standby current to approximately 1μA. The component is housed in a 20-pin SSOP package and complies with EIA/TIA-232 and V.28/V.24 standards.

Feature Summary

• Enhanced automatic powerdown circuitry significantly reduces operating current during idle periods.
• Integrated ±15kV electrostatic discharge protection on all RS-232 signal pins ensures robustness against static events.
• Single-supply operation allows direct interfacing with standard logic families without requiring negative voltage generation.

Applications

• Industrial control systems requiring reliable serial communication interfaces.
• Portable battery-powered equipment utilizing low-power RS-232 connectivity.
• Embedded systems needing ESD-resistant serial port implementations.

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing components. Confirm that the 20-SSOP package dimensions align with the target PCB footprint. Ensure compliance with RoHS directives if required by the end product specifications. Check moisture sensitivity level handling procedures during assembly.

Selection Notes

Select this component when a single +3V to +5.5V supply is available and low quiescent current is critical. Choose the ICL3225 variant specifically for applications requiring two receivers and one driver. Consider the 20-SSOP package constraints regarding board space and thermal dissipation capabilities compared to other form factors.

Part Context

This part belongs to the Intersil ICL32xxE family, now produced by Renesas Electronics. The series is characterized by CMOS technology enabling low power consumption while maintaining compatibility with standard RS-232 voltage levels. The 'E' designation typically denotes enhanced features such as improved ESD protection and power management compared to earlier generations.

Replacement Considerations

ICL3222EIAZ-T is listed as a parameter-compatible alternative within the same manufacturer lineup. Verify pinout compatibility and functional equivalence before substitution. Other members of the ICL32xxE series may offer different driver/receiver counts but share similar electrical characteristics.