ICL3245EIR

Overview

The ICL3245EIR is a full-duplex RS-232 transceiver manufactured by Intersil, designed for operation with supply voltages ranging from 3 V to 5.5 V. It integrates three drivers and five receivers, supporting data rates up to 1 Mbps. The device features enhanced automatic powerdown functionality, reducing quiescent current to approximately 1 µA in shutdown mode. It provides ±15 kV electrostatic discharge (ESD) protection on the RS-232 lines and operates within an industrial temperature range of -40°C to +85°C. The component is housed in a 28-pin SSOP package.

Feature Summary

• Integrated automatic powerdown circuitry significantly reduces power consumption during idle periods.
• Robust ±15 kV ESD protection ensures reliability in high-interference environments.
• Single-supply operation simplifies integration with standard 3.3 V and 5 V logic systems.

Applications

• Portable battery-powered equipment requiring low standby current
• Industrial communication interfaces subject to electrostatic discharge
• Embedded systems utilizing RS-232 serial protocols

Procurement Notes

Verify the specific suffix against official Renesas or Intersil documentation to confirm package type and temperature grade. Ensure the source document explicitly identifies the manufacturer as Intersil or its successor entity. Cross-reference the part number with authorized distributor catalogs to validate authenticity and compliance with RoHS standards before procurement.

Selection Notes

Select this component when designing circuits that require multiple transmit and receive channels within a single package. The 1 µA shutdown current makes it suitable for battery-operated devices where power efficiency is critical. Verify that the required data rate does not exceed 1 Mbps and that the operating voltage aligns with the 3 V to 5.5 V specification.

Part Context

This device belongs to the ICL3245E series of RS-232 transceivers. It shares functional similarities with other members of the family but differs in pinout configuration and package options. The series is characterized by its low-power architecture and high ESD tolerance, distinguishing it from older generations of interface ICs.

Replacement Considerations

Direct replacements include ICL3245EIAZ and ICL3245EIAZ-T. These variants offer identical electrical specifications and functionality. Confirm that the substitute part number matches the required package style and temperature rating for the specific application environment.