ICL3225ECA

Overview

The ICL3225ECA is a dual transmitter and dual receiver RS-232 interface integrated circuit manufactured by Renesas Electronics. It operates within a supply voltage range of 3V to 5.5V, supporting both 3.3V and 5V logic systems. The device provides a data rate of up to 1Mbps and features enhanced automatic powerdown functionality that reduces operating supply current to approximately 1µA in standby mode. It includes ±15kV electrostatic discharge (ESD) protection on all RS-232 lines. The component is housed in an SSOP-20 package and is designed for surface mount installation with an operating temperature range from 0°C to +70°C.

Feature Summary

• Enhanced automatic powerdown mechanism significantly reduces power consumption during idle periods
• Integrated ±15kV ESD protection ensures robustness against electrostatic discharge events
• Full duplex communication capability supports simultaneous transmission and reception
• Single-ended output type compatible with standard RS-232 signaling requirements

Applications

• Industrial control systems requiring reliable serial communication
• Portable battery-powered equipment utilizing low-power interface solutions
• Computer peripherals connecting via RS-232 ports
• Modem interfaces in telecommunications hardware

Procurement Notes

Verify the specific suffix 'CA' against official Renesas documentation to confirm package type and temperature grade. Ensure compatibility with SSOP-20 footprint requirements. Check moisture sensitivity levels before assembly. Confirm RoHS compliance status through manufacturer datasheets. Validate supplier authenticity to prevent counterfeit components.

Selection Notes

Select this component when designing circuits requiring low quiescent current and high ESD tolerance. Suitable for applications needing full-duplex RS-232 communication at speeds up to 1Mbps. Consider the SSOP-20 package constraints for PCB layout. Verify voltage level compatibility with host microcontrollers operating at 3.3V or 5V.

Part Context

The ICL3225E belongs to the Intersil RS-232 transceiver family, now part of Renesas Electronics. This series is characterized by its low power consumption and enhanced reliability features. The ICL3225 variant specifically offers two drivers and two receivers, providing balanced connectivity for standard serial interfaces. It represents a legacy design optimized for cost-effective and energy-efficient serial communication solutions.

Replacement Considerations

Direct substitutes include ICL3225ECPZ (PDIP-20) and ICL3225EIAZ (SOIC-20). Verify pinout compatibility and package dimensions before substitution. Ensure electrical parameters such as data rate and supply voltage remain within acceptable limits for the target application.