ICL3223EIAZ

Overview

The ICL3223EIAZ is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation. It integrates two drivers and two receivers within a single SSOP-20 package, supporting full-duplex communication at data rates up to 250 kb/s. The device operates from a single 3 V to 5.5 V supply with a typical operating current of 1 mA. It features 15 kV electrostatic discharge (ESD) protection on all RS-232 lines and includes an automatic power-down mode that reduces current consumption to less than 30 µA when no signal activity is detected for 300 ms.

Feature Summary

• Integrates dual drivers and dual receivers for complete RS-232 communication in a compact surface-mount package.
• Provides robust 15 kV ESD protection on transmit, receive, and control pins to safeguard connected equipment.
• Automatically enters low-power standby mode after 300 ms of inactivity, significantly reducing quiescent current.

Applications

• Portable battery-powered devices requiring low-current serial communication interfaces.
• Industrial control systems needing reliable RS-232 connectivity with high ESD immunity.
• Embedded systems utilizing microcontrollers for serial data exchange over short distances.

Procurement Notes

Verify the specific suffix 'EIAZ' against official Renesas documentation to confirm the industrial temperature range and lead-free status. Confirm package dimensions match the SSOP-20 footprint requirements. Check moisture sensitivity level handling instructions if storage conditions exceed specified limits. Ensure compatibility with existing PCB layout constraints for the 20-pin small outline package.

Selection Notes

Select this component when a dual-channel RS-232 interface is required with minimal power consumption. Compare against similar models like the ICL3224 or ICL3225 if different driver/receiver counts or higher data rates are needed. Verify that the 250 kb/s speed meets system timing requirements. Consider the SSOP-20 package availability versus alternative packages like TSSOP if space optimization differs.

Part Context

This part belongs to the ICL322x series of low-power RS-232 transceivers from Renesas/Intersil. It shares architectural similarities with other members like the ICL3223ECAZ but differs in package type and temperature rating. The series is designed for applications where power efficiency and noise immunity are critical, maintaining compatibility with standard RS-232 voltage levels while operating from low-voltage supplies.

Replacement Considerations

Publicly confirmed substitutes include the ICL3223ECAZ for equivalent functionality in a different package. Other potential replacements within the same family may include variants with different pin counts or speeds, such as the ICL3224 or ICL3225, provided the electrical specifications align with the design requirements.