ICL3217CAZ

Overview

The ICL3217CAZ is an RS-232 transceiver manufactured by Renesas Electronics, belonging to the ICL3217E series. It operates within a supply voltage range of 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 single package. It features ±15 kV ESD protection on RS-232 I/O pins per IEC61000-4-2 standards. The component utilizes automatic powerdown functionality to reduce standby current to approximately 1 µA. It is housed in a 24-pin SSOP package and complies with EIA/TIA-232 specifications.

Feature Summary

• Integrated automatic powerdown circuitry that reduces standby supply current to a trickle level when no valid RS-232 signal is present.
• Provides robust electrostatic discharge protection rated at ±15 kV for both air gap and human body models on RS-232 pins.
• Supports full duplex communication compliant with EIA/TIA-232 and V.28/V.24 standards across a wide voltage range.

Applications

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

Procurement Notes

Verify the specific suffix 'CAZ' against official Renesas documentation to confirm package type and temperature grade. Confirm availability status as distribution listings may indicate end-of-life or limited stock conditions. Ensure compliance with export restrictions if applicable to the region. Cross-reference the manufacturer part number with the datasheet revision history to validate electrical characteristics before procurement.

Selection Notes

Select this component for applications requiring low power consumption in portable systems where battery life is critical. The integrated charge pumps eliminate the need for external voltage sources. Verify that the required number of drivers and receivers matches the system design, as this unit provides one driver and three receivers. Ensure the operating environment stays within the specified commercial temperature range for the CAZ variant.

Part Context

The ICL3217CAZ is part of the Intersil (now Renesas) ICL32X7E family of low-power RS-232 transceivers. This series was designed to replace older 5V-only devices like the MAX207E in modern 3.3V and 5V mixed systems. The ICL3217E variant specifically offers a configuration of one transmitter and three receivers, distinguishing it from other members of the family with different channel counts.

Replacement Considerations

Publicly documented equivalents include the MAX207E, HIN207E, and HIN237E. These components serve as 5V lower power replacements but may differ in ESD protection levels or package options. Verify pin compatibility and electrical specifications before substitution.