ICL3221EIA

Overview

The ICL3221EIA is a single driver, single receiver RS-232 transceiver manufactured by Intersil. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 500 kb/s in full-duplex mode. The device features 1 mA typical operating current and provides 15 kV ESD protection on RS-232 lines. It is housed in an SSOP-16 package and functions across an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Integrated automatic power-down circuitry for reduced standby consumption
• High electrostatic discharge tolerance on signal lines
• Single-supply operation compatible with standard RS-232 levels

Applications

• Industrial communication equipment requiring robust ESD protection
• Portable battery-powered devices utilizing low-power interfaces
• Data acquisition systems interfacing with PC serial ports

Procurement Notes

Verify the specific suffix against official datasheets to confirm temperature grade and packaging format. Confirm RoHS compliance status and moisture sensitivity level prior to integration. Ensure the source document explicitly identifies the manufacturer as Intersil or Renesas to avoid counterfeit components.

Selection Notes

Select this component when a single channel is sufficient for bidirectional communication. Compare performance requirements against the tape-and-reel variant if automated assembly is planned. Verify that the 500 kb/s speed meets system timing constraints.

Part Context

This part belongs to the ICL3221 series of low-power RS-232 transceivers. It shares architectural similarities with other members like the ICL3221EIAZ but may differ in environmental ratings or shipping configuration. The series is designed for applications prioritizing power efficiency alongside reliable serial data transmission.

Replacement Considerations

ICL3221EIAZ serves as a verified equivalent within the same product family.