ICL3217CAZ-T

Overview

The ICL3217CAZ-T is an RS-232 transceiver manufactured by Renesas Electronics, belonging to the ICL3217E series. It operates on a single power supply ranging from 3 V to 5.5 V and supports data rates up to 500 kb/s. The device integrates one driver and three receivers in a surface-mount SOIC-24 package. It features automatic powerdown functionality that reduces standby current to approximately 1 µA when no receiver activity is detected. The component provides ±15 kV ESD protection on RS-232 pins and meets EIA/TIA-232 specifications at 3 V operation.

Feature Summary

• Automatic powerdown circuit reduces standby current significantly when idle
• Integrated charge pumps enable operation with small external capacitors
• Provides robust ±15 kV ESD protection on all RS-232 I/O pins

Applications

• ISDN Terminal Adaptors
• Portable computing devices such as PDAs and Palmtops
• Notebook and laptop computer serial interfaces

Procurement Notes

Verify the exact suffix against official Renesas documentation to confirm package type and temperature range. Confirm availability status as distribution listings may indicate limited stock or end-of-life conditions. Ensure compliance with export restrictions if applicable to the region of deployment.

Selection Notes

Select this component for low-power RS-232 applications requiring 3 V operation. Compare driver and receiver counts against system requirements. Verify that the SOIC-24 package fits the PCB layout constraints. Check thermal performance within the specified operating temperature range.

Part Context

This part belongs to the ICL3217E family of low-power RS-232 transceivers designed for battery-powered systems. It serves as a lower power alternative to older generations like the MAX207E. The family emphasizes reduced board space through small capacitor usage and extended battery life via automatic shutdown features.

Replacement Considerations

Publicly confirmed substitutes include the ICL3217EIA and ICL3217EIB. Verify pin compatibility and electrical parameters before substitution.