ICL3217CBZ

Overview

The ICL3217CBZ is a low-power RS-232 transceiver manufactured by Renesas Electronics Corporation, designed for operation with supply voltages ranging from 3V to 5.5V. It integrates one driver and three receivers, supporting data rates up to 500 kb/s while maintaining compliance with EIA/TIA-232 and V.28/V.24 specifications even at the minimum 3.0V supply level. The device features an automatic powerdown function that reduces standby supply current to approximately 1 µA when no valid RS-232 signal is detected on receiver inputs. It includes integrated charge pumps requiring only small external capacitors and provides ±15kV electrostatic discharge (ESD) protection on RS-232 I/O pins according to IEC61000-4-2 standards. Packaged in a 24-SOIC format, it operates within a temperature range of -40°C to +85°C.

Feature Summary

• Automatic powerdown circuitry significantly reduces standby current consumption without hardware modifications.
• Integrated charge pumps enable efficient voltage generation using minimal external capacitance.
• Robust ±15kV ESD protection ensures reliability against electrostatic discharge events.

Applications

• ISDN Terminal Adaptors
• Portable Digital Assistants (PDAs)
• Notebook and Laptop Computers

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package marking and datasheet revision alignment. Check for export restrictions applicable to specific regions. Validate RoHS compliance status prior to integration into final assemblies.

Selection Notes

Select this component for designs requiring low-voltage operation down to 3V with minimal standby power consumption. Ensure system requirements align with the single-driver and triple-receiver configuration. Verify that the 24-SOIC package footprint fits the available board space constraints.

Part Context

This part belongs to the ICL32X7E family of RS-232 transceivers, which are engineered for low-power applications. It serves as a lower-power alternative to legacy devices like the MAX207E. The family shares common architectural features such as automatic powerdown and high ESD tolerance, tailored for portable electronics.

Replacement Considerations

Publicly confirmed substitute part numbers for the ICL3217CBZ were not identified in the provided source material. Consult official manufacturer documentation for verified cross-reference options.