ICL3217ECA-T

Overview

The ICL3217ECA-T is a low-power RS-232 transceiver manufactured by Renesas Electronics, operating on a single power supply ranging from 3V to 5.5V. It integrates one driver and three receivers, supporting data rates up to 250 kbps. The device features an automatic powerdown function that reduces standby supply current to approximately 1 µA when the interface is idle. It includes efficient on-chip charge pumps requiring only small external capacitors. The component provides ±15 kV electrostatic discharge (ESD) protection on RS-232 I/O pins and meets EIA/TIA-232 and V.28/V.24 specifications even at 3.0V operation.

Feature Summary

• Automatic powerdown circuitry significantly reduces standby power consumption without hardware modifications.
• Integrated charge pump design minimizes external component count and board space requirements.
• Robust ±15 kV ESD protection ensures reliability in sensitive electronic environments.

Applications

• ISDN Terminal Adaptors
• Personal Digital Assistants (PDAs)
• Notebook and laptop computers

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration during sourcing. Confirm RoHS compliance status as availability may vary by manufacturing lot. Check for export restrictions or lifecycle notices such as end-of-life status before finalizing procurement plans.

Selection Notes

Select this component for applications requiring low voltage operation between 3V and 5.5V with minimal standby current. Ensure the system design accommodates the required external capacitor values for the internal charge pumps. Verify that the 250 kbps data rate meets the communication speed requirements of the target application.

Part Context

This part belongs to the ICL32X7E family of RS-232 transceivers designed for portable electronics. It serves as a lower power alternative to older generations like the MAX207E. The device is optimized for battery-powered systems where power efficiency and compact footprint are critical design constraints.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate pin-compatible alternatives within the same manufacturer's portfolio if direct replacement is necessary due to supply constraints.