ICL3222EIB

Overview

The ICL3222EIB is a dual driver, dual receiver RS-232 transceiver manufactured by Intersil. It operates on a single 3V to 5.5V power supply and supports data rates up to 500 kb/s. The device features full-duplex communication with low operating current of 1 mA. It includes an integrated shutdown mode for power conservation and provides 15 kV electrostatic discharge (ESD) protection on all pins. The component is housed in an SOIC-wide-18 package and is designed for industrial temperature ranges from -40°C to +85°C.

Feature Summary

• Integrated shutdown mode reduces power consumption during idle periods
• High ESD protection rating ensures robustness against static discharge events
• Supports standard RS-232 protocols including TIA/EIA-232 and V.28/V.24

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment utilizing low-voltage operation
• Data acquisition modules interfacing with RS-232 peripherals

Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature range and 'B' denotes the SOIC-wide-18 package configuration. Confirm RoHS compliance status through official documentation as manufacturing processes may vary. Check for obsolescence notices or lifecycle changes directly from Renesas Electronics, as this component may be subject to discontinuation or replacement strategies.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with low power consumption constraints. Ensure the application environment falls within the specified -40°C to +85°C operating temperature range. Verify that the system voltage aligns with the 3V to 5.5V supply requirement and that the PCB layout accommodates the external charge pump capacitors necessary for RS-232 voltage generation.

Part Context

The ICL3222 series belongs to the family of low-power RS-232 transceivers originally developed by Intersil and now managed by Renesas Electronics. This specific part number represents the dual-driver variant optimized for applications needing two transmit and two receive channels. The product line emphasizes compatibility with standard RS-232 signaling levels while minimizing external component count and power usage compared to older generations.

Replacement Considerations

Consult official substitution guides for equivalent parts such as the ICL3222EIAZ if SSOP-20 packaging is acceptable. Verify pin-to-pin compatibility before replacing with other RS-232 transceivers from different manufacturers.