ICL3221ECV-T

Overview

The ICL3221ECV-T is a single-driver, single-receiver RS-232 transceiver manufactured by Renesas Electronics Corporation. It operates from a single 3V to 5.5V power supply and incorporates internal charge pumps to generate the required positive and negative voltages for RS-232 communication without external components. The device features 15kV ESD protection on all pins, ensuring robust performance in harsh environments. It supports data rates up to 120kbps and is available in an 8-pin VQFN package.

Feature Summary

• Integrated charge pump eliminates need for external capacitors
• 15kV ESD protection on all pins for enhanced reliability
• Single 3V to 5.5V supply operation
• Compact 8-pin VQFN package design

Applications

• Portable battery-powered devices requiring RS-232 connectivity
• Industrial control systems with limited space constraints
• Embedded systems needing robust ESD protection

Procurement Notes

Verify the exact ordering suffix matches the required package type and tape/reel configuration. Confirm RoHS compliance status if required for specific regulatory standards. Check lead times as availability may vary by region. Ensure the supplier provides genuine Renesas products with proper traceability documentation.

Selection Notes

Select this component when a single driver and receiver are sufficient for bidirectional serial communication. Consider the 120kbps maximum data rate against application requirements. Evaluate the 8-pin VQFN footprint against PCB layout constraints. Verify that the 3V to 5.5V supply range aligns with the system power architecture.

Part Context

This part belongs to the Intersil RS-232 transceiver family, now under Renesas Electronics. It complements higher-channel variants like the ICL3241 while offering a simplified solution for point-to-point links. The VQFN package represents a modern surface-mount alternative to traditional DIP or SOIC packages.

Replacement Considerations

Direct pin-compatible substitutes include other single-driver RS-232 transceivers with similar voltage ranges and ESD ratings. Verify functional equivalence regarding charge pump efficiency and data rate capabilities before substitution.