ICL3238EIV-T

Overview

The ICL3238EIV-T is a low-power RS-232 transceiver manufactured by Renesas Electronics under the Intersil brand. It features five drivers and three receivers, supporting full-duplex communication at data rates up to 250 kb/s. The device operates on a single power supply ranging from 3 V to 5.5 V, with a typical operating current of 1 mA. It includes an automatic power-down mode that reduces current consumption to less than 30 µA when no signal activity is detected for 300 ms. The component provides 15 kV electrostatic discharge (ESD) protection on all RS-232 lines and is housed in a 28-pin TSSOP package suitable for surface-mount applications.

Feature Summary

• Integrates five independent drivers and three receivers for complex serial interface requirements within a single compact package.
• Features automatic power-down circuitry that significantly reduces quiescent current during idle periods to enhance energy efficiency.
• Provides robust 15 kV ESD protection on all RS-232 signal lines to ensure reliability in electrically noisy environments.

Applications

• Industrial control systems requiring multiple serial communication ports
• Portable battery-powered equipment needing low standby current consumption
• Data acquisition systems utilizing RS-232 interfaces

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging rather than tube packaging when sourcing this variant. Confirm the manufacturer designation as Renesas Electronics, which acquired Intersil, to ensure authenticity. Check for moisture sensitivity labels as the component requires proper handling. Validate RoHS compliance status through official documentation before integration into regulated assemblies.

Selection Notes

Select this component when designing systems requiring five transmit channels and three receive channels. Ensure the application voltage remains within the 3 V to 5.5 V range for optimal performance. Consider the 250 kb/s maximum data rate against system timing requirements. Verify that the TSSOP-28 footprint aligns with the PCB layout constraints and thermal management strategies.

Part Context

This part belongs to the ICL3238 family of RS-232 transceivers designed for low-voltage operation. It shares functional similarities with other members like the ICL3238EIVZ but differs in packaging format due to the 'T' suffix indicating reel distribution. The series is characterized by its high ESD tolerance and automatic shutdown capabilities, distinguishing it from standard legacy transceivers.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Engineering teams should consult official Renesas documentation or authorized distributors for qualified alternatives if this specific variant becomes unavailable.