ICL3223CPZ

Overview

The ICL3223CPZ is a full-duplex RS-232 transceiver manufactured by Renesas Electronics. It features two drivers and two receivers, supporting data rates up to 250 kb/s. The device operates on a single power supply ranging from 3 V to 5.5 V, with typical operation at 3.3 V or 5 V. It provides 15 kV ESD protection on all pins and includes an automatic shutdown mode that reduces operating current to 1 mA when inputs are inactive. The component is housed in a 20-pin PDIP package.

Feature Summary

• Compliant with EIA/TIA-232 and V.28/V.24 standards for RS-232 communication
• Integrated 15 kV electrostatic discharge protection across all signal pins
• Automatic power-down functionality minimizes current consumption during idle states
• Supports full-duplex data transmission with independent driver and receiver channels

Applications

• Industrial equipment requiring serial communication interfaces
• Embedded systems utilizing microcontroller-based UART connections
• Portable devices necessitating low-power RS-232 link capabilities

Procurement Notes

Verify the specific suffix CPZ indicates a 20-pin PDIP package configuration distinct from other variants like IVZ (TSSOP) or ECAZ (SSOP). Confirm RoHS compliance status through official Renesas documentation prior to integration. Check lifecycle status as some sources indicate obsolete or limited availability for this specific part number.

Selection Notes

Select this component when a robust RS-232 interface with high ESD immunity is required for through-hole PCB designs. The 250 kb/s speed limit suits standard baud rate applications but may be insufficient for high-speed serial links. Ensure the system voltage aligns with the 3 V to 5.5 V operational range to maintain signal integrity.

Part Context

The ICL3223 series belongs to Renesas's family of low-voltage RS-232 transceivers, originally developed by Intersil. These devices bridge the gap between TTL/CMOS logic levels and RS-232 voltage swings. The CPZ variant specifically denotes the dual-in-line package format, differentiating it from surface-mount options within the same electrical specification family.

Replacement Considerations

Public confirmed substitute part numbers include ICL3223IVZ and ICL3223ECAZ. Note that these alternatives differ in package type (TSSOP and SSOP respectively) compared to the PDIP form factor of the ICL3223CPZ.