ICL3224EIA

Overview

The ICL3224EIA is an RS-232 transceiver manufactured by Renesas Electronics, formerly Intersil. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates one driver and two receivers in an SSOP-20 surface-mount package. It features ESD protection on RS-232 pins and maintains a low operating supply current of 10 uA. The component functions across an industrial temperature range from -40 C to +85 C.

Feature Summary

• Provides ±15kV ESD protection on RS-232 input and output pins per IEC61000-4-2 standards.
• Integrates efficient on-chip charge pumps to generate required voltages from a single 3V to 5.5V supply.
• Includes automatic powerdown circuitry that reduces standby current to microampere levels when no valid signal is detected.

Applications

• Portable computers and notebook systems requiring low standby power consumption.
• Personal Digital Assistants (PDAs) and palmtop devices with limited battery capacity.
• Industrial control systems operating within extended temperature environments.

Procurement Notes

Verify the specific suffix for the ICL3224EIA part number to confirm package type and temperature grade before ordering. Confirm RoHS compliance status as manufacturing processes evolve. Check for export restrictions or lifecycle notices such as obsolescence status. Ensure the supplier provides original manufacturer documentation to validate authenticity. Review datasheet revisions for any changes in recommended external capacitor values.

Selection Notes

Select this component when a single driver and dual receiver configuration is required for RS-232 communication. Choose the ICL3224EIA for applications needing operation at 3.0V where standard 5V transceivers may fail to meet voltage specifications. Consider this device for designs prioritizing low quiescent current and automatic power management features over higher data throughput capabilities.

Part Context

The ICL3224EIA belongs to the ICL32XXE family of low-power RS-232 transceivers designed for portable electronics. This series replaces older 5V-only devices with CMOS technology optimized for 3V to 5.5V operation. The E-series designation indicates enhanced features including improved ESD protection and lower power consumption compared to legacy counterparts.

Replacement Considerations

Publicly confirmed substitutes include the MAX3224E and the HIN2324E. Verify pin compatibility and electrical parameters against the original datasheet before substitution. Ensure the replacement device supports the same SSOP-20 package and meets the required -40 C to +85 C operating temperature range.