ICL3222ECA

Overview

The ICL3222ECA is a dual driver, dual receiver RS-232 transceiver manufactured by Intersil. It operates from a single 3 V to 5.5 V supply and supports data rates up to 250 kb/s. The device features full-duplex communication with two drivers and two receivers. It includes 15 kV ESD protection on all pins and offers shutdown functionality to minimize power consumption. The component is housed in an SSOP-20 package and operates within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrated 15 kV ESD protection on all signal pins for enhanced robustness
• Shutdown mode capability to reduce operating current during idle periods
• Single-supply operation compatible with 3 V and 5 V logic systems

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment utilizing low-voltage interfaces
• Data acquisition modules interfacing with PC or terminal devices

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm pinout compatibility and functional variations such as shutdown behavior. Ensure the SSOP-20 package matches the target PCB footprint. Confirm RoHS compliance status if required by assembly standards. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when dual independent channels are required for simultaneous transmit and receive operations. Compare against single-driver variants if only one communication path is needed. Verify that the 250 kb/s speed meets system timing requirements. Consider the thermal performance of the SSOP-20 package for enclosed enclosures.

Part Context

This part belongs to the ICL3222 series of RS-232 interface ICs. It shares architectural similarities with other members like the ICL3221 and ICL3225 but differs in driver/receiver count and specific feature sets. The series is designed for low-power applications replacing older CMOS-based transceivers.

Replacement Considerations

Check for direct pin-compatible substitutes within the same family, such as ICL3222EIAZ. Verify electrical parameters against alternatives like MAX3222 or SP3222 if sourcing from different manufacturers. Ensure voltage levels and ESD ratings match application requirements.