FDC37C672-MS

Specialized Overview

The FDC37C672-MS is an Enhanced Super I/O Controller manufactured by Microchip Technology, originally developed by SMSC. It operates on a single 5V supply with a voltage range of 4.5V to 5.5V. The device utilizes a 100-pin Quad Flat Package (PQFP) with a 0.65mm pitch and supports ISA bus compatibility. Key electrical specifications include an external data bus width of 8 bits, an address bus width of 11 bits, and a maximum functional clock frequency of 14.32 MHz. It functions as a multifunction peripheral within the embedded processor and controller category.

Specialized Feature Summary

• Compliant with PC98/99 standards and ACPI 1.0 specifications for system integration.
• Supports intelligent auto power management capabilities for energy efficiency.
• Features shadowed write-only registers specifically designed for ACPI compliance.

Specialized Applications

• Super I/O controller implementation in legacy PC architectures.
• Systems requiring ISA Plug-and-Play compatible register sets.
• Embedded controllers needing Fast IR serial port support.

Specialized Procurement Notes

Verify the manufacturer designation carefully, as the component was originally produced by SMSC before acquisition by Microchip Technology. Confirm the specific suffix indicates the correct package variant and temperature rating. Ensure the datasheet version matches the required ACPI 1.0 and PC98/99 compliance levels for your target design.

Specialized Selection Notes

Select this component when designing systems that require a dedicated Super I/O solution with native ISA bus support and 5V operation. It is suitable for applications needing integrated serial ports and infrared communication interfaces without additional discrete logic. Verify that the 100-pin PQFP footprint aligns with your PCB layout constraints and thermal requirements.

Specialized Part Context

This part belongs to the FDC37C6xx series of Enhanced Super I/O Controllers. It serves as a multifunction peripheral bridging ISA bus protocols with low-speed I/O functions. The series is characterized by its compliance with older PC industry standards while providing modern power management features through ACPI support.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineering change notices or pin-compatible alternatives should be verified through official Microchip Technology channels prior to implementation.