ICL3224ECAZ

Overview

The ICL3224ECAZ is a low-power RS-232 transceiver manufactured by Renesas Electronics under the Intersil brand. It operates on a single +3V to +5.5V supply and supports data rates up to 250kbps. The device integrates one driver and two receivers, providing full-duplex communication capabilities. It features enhanced automatic powerdown functionality, reducing standby current to 1mA. The component offers 15kV ESD protection on RS-232 pins and is housed in an SSOP-20 surface-mount package. It complies with RoHS standards and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrated charge pumps enable operation from a single low-voltage supply without external negative voltage generation.
• Enhanced automatic powerdown circuitry significantly reduces power consumption during idle periods.
• Robust electrostatic discharge protection ensures reliability in sensitive electronic environments.

Applications

• Portable computing devices requiring low-power serial communication
• Battery-operated industrial equipment with RS-232 interfaces
• Embedded systems utilizing mixed 3.3V and 5V logic levels

Procurement Notes

Verify the specific suffix 'ECAZ' against official Renesas documentation to confirm pinout compatibility and environmental compliance status. Ensure that the SSOP-28 or SSOP-20 package designation matches the target PCB footprint, as variations exist within the family. Confirm moisture sensitivity level requirements for assembly processes.

Selection Notes

Select this component when a single driver and dual receiver configuration is required for RS-232 links. It is suitable for designs prioritizing low standby current through automatic powerdown features. Consider the 250kbps speed limit and 3V minimum supply voltage constraints during system architecture planning.

Part Context

This part belongs to the ICL32XXE series of 3V RS-232 transceivers. It shares architectural similarities with other members like the ICL3221 and ICL3225 but differs in driver and receiver counts. The series is designed to replace older 5V-only RS-232 components in modern low-voltage applications.

Replacement Considerations

Publicly confirmed substitutes include the ICL3221ECAZ for single-driver configurations and the ICL3225ECAZ for dual-driver variants. Verify pin-to-pin compatibility before substitution.