ICL3207IA

Overview

The ICL3207IA is a low-power RS-232 transceiver manufactured by Intersil, now part of Renesas Electronics. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 250 kb/s. The device integrates five drivers and three receivers for full-duplex communication. It features an operating supply current of 1 mA and includes 15 kV ESD protection on RS-232 pins. The component is housed in a 24-pin SSOP package and functions reliably across an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Provides integrated charge pumps requiring only small external capacitors for operation at 3 V or 5 V supplies.
• Includes automatic powerdown circuitry that reduces standby current to 1 µA when no receiver activity is detected.
• Offers robust 15 kV ESD protection on all RS-232 input and output pins per IEC61000-4-2 standards.

Applications

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

Procurement Notes

Verify the specific suffix 'IA' against official Renesas documentation to confirm the exact temperature grade and packaging variant. Confirm RoHS compliance status as manufacturing sources may vary between original Intersil and current Renesas production lines. Check for End-of-Life (EOL) notices or last-time-buy dates before finalizing procurement plans.

Selection Notes

Select this component for designs requiring low power consumption in portable applications. Ensure the system supports the required 3 V to 5.5 V supply range. Verify that the 250 kb/s data rate meets interface requirements. Confirm that the 24-pin SSOP footprint fits the PCB layout constraints.

Part Context

This device belongs to the ICL32X7E family of RS-232 transceivers designed for 3 V to 5.5 V systems. It serves as a lower power alternative to older 5 V-only devices like the MAX207E. The family shares common features such as automatic powerdown and high ESD protection, tailored for battery-operated electronics.

Replacement Considerations

Publicly confirmed substitutes include the ICL3217EIA, which shares similar electrical characteristics and pinout compatibility within the same manufacturer's portfolio. Verify pin-to-pin compatibility and parameter alignment with official cross-reference documents before substitution.