ICL3245IV

Overview

The ICL3245IV is an RS-232 transceiver from the Intersil ICL3245 series, designed for single-supply operation between 3V and 5.5V. It integrates one driver and five receivers, supporting data rates up to 1Mb/s. The device features enhanced automatic powerdown functionality, reducing quiescent current to approximately 1µA in standby mode. It utilizes small external capacitors and operates within a commercial temperature range of 0°C to +70°C. The component is housed in a 28-pin SSOP package.

Feature Summary

• Enhanced automatic powerdown circuitry reduces power consumption during idle periods
• Single-supply operation compatible with 3V and 5V logic levels
• Integrated charge pump eliminates need for dual voltage supplies
• High noise immunity with Schmitt-trigger inputs on receivers

Applications

• Portable battery-powered equipment requiring low standby current
• Industrial control systems utilizing RS-232 communication
• Modem interfaces in compact electronic devices
• Data acquisition systems with multiple receiver channels

Procurement Notes

Verify the specific suffix 'IV' against official Renesas/Intersil documentation to confirm temperature grade and package variant. Ensure compatibility with existing PCB footprint for SSOP-28 packages. Check for moisture sensitivity level requirements during assembly. Confirm RoHS compliance status for the specific manufacturing batch. Validate supply chain authenticity through authorized distributors.

Selection Notes

Select this component when designing systems requiring five receiver channels alongside a single driver. Consider the 1Mb/s data rate limit for high-speed applications. Evaluate the 0°C to +70°C operating range against environmental conditions. Compare power consumption metrics if extended battery life is critical. Verify pinout compatibility with alternative RS-232 transceivers if redesigning circuits.

Part Context

The ICL3245 belongs to the broader family of low-power RS-232 transceivers developed by Intersil, now part of Renesas Electronics. This series emphasizes reduced power consumption through automatic powerdown features while maintaining standard RS-232 signal levels. The ICL3245 variant specifically provides an asymmetrical configuration of one driver and five receivers, distinguishing it from symmetric counterparts like the ICL3243 or ICL3244.

Replacement Considerations

Publicly confirmed substitutes include the ICL3243CAZ and ICL3244CAZ, though these offer different driver/receiver counts. The MAX3245 from Maxim Integrated serves as a functional equivalent with similar specifications. Verify pin-to-pin compatibility and electrical parameters before substitution.