ICL3244EIAZ

Overview

The ICL3244EIAZ is a full-duplex RS-232 transceiver manufactured by Renesas Electronics Corporation. It integrates three drivers and five receivers in a 28-pin SSOP package. The device operates on a single power supply ranging from 3V to 5.5V, with a typical operating current of 1 mA. It supports data rates up to 250 kbps and features receiver hysteresis of 500 mV for noise immunity. The component provides 15 kV electrostatic discharge (ESD) protection on all lines. It functions within an industrial temperature range of -40°C to +85°C and complies with RoHS3 standards.

Feature Summary

• Integrated ESD protection rated at 15 kV on all RS-232 lines
• Low power consumption with 1 mA typical operating current
• Single-supply operation compatible with 3V and 5V systems
• Industrial temperature range capability for harsh environments

Applications

• Industrial communication equipment requiring robust signal integrity
• Portable battery-powered devices utilizing low-power interfaces
• Data acquisition systems with multiple serial input channels
• Embedded control units needing high ESD resilience

Procurement Notes

Verify the specific suffix against official Renesas documentation to confirm packaging type, as the base model may correspond to tube packaging while other variants use reels. Confirm RoHS3 compliance status directly with the manufacturer or authorized distributors prior to procurement. Ensure the 28-SSOP footprint matches the target PCB design constraints. Validate that the 3V to 5.5V supply range aligns with the system power architecture.

Selection Notes

Select this component when three transmit and five receive channels are required in a compact surface-mount package. It is suitable for designs prioritizing low quiescent current alongside high ESD tolerance. Compare against similar models like the ICL3224EIAZ if fewer drivers or receivers are sufficient for the application. Ensure the 250 kbps speed meets the system timing requirements.

Part Context

This part belongs to the ICL3244 series of RS-232 transceivers produced by Renesas Electronics. It shares functional similarities with other members of the family but offers a specific configuration of three drivers and five receivers. The device is designed to replace older discrete solutions in serial communication interfaces, providing integrated charge pumps and protection features in a standardized industrial package.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.