FDC37665IRTQFP

Controllers Overview

The FDC37665IRTQFP is a multifunction peripheral controller manufactured by SMSC, housed in a 100-lead Quad Flat Package (QFP) with a 0.65 mm pitch. It operates on a 5 V supply within a 4.5 V to 5.5 V range and supports an ISA bus interface with an 8-bit external data bus and 11-bit address bus. The device functions as an Enhanced Super I/O Controller compliant with PC98/99 and ACPI 1.0 standards, featuring intelligent auto power management and shadowed write-only registers for ACPI compliance. It includes integrated serial ports and supports a maximum clock frequency of 14.32 MHz.

Controllers Feature Summary

• Supports PC98/99 and ACPI 1.0 compliance with intelligent auto power management capabilities
• ISA Plug-and-Play compatible register set with shadowed write-only registers for ACPI compliance
• Integrates serial port functionality within a single multifunction peripheral package

Controllers Applications

• Super I/O controller implementation in PC98/99 compliant computer systems
• ACPI 1.0 compliant motherboard designs requiring intelligent power management
• Legacy ISA bus expansion cards requiring integrated serial communication

Controllers Procurement Notes

Verify the specific suffix 'IRTQFP' against official SMSC documentation to confirm package type and temperature grade. Ensure compatibility with existing ISA bus architectures and ACPI requirements before procurement. Cross-reference pinouts and electrical specifications with the latest datasheet to avoid integration errors.

Controllers Selection Notes

Select this component for systems requiring a unified Super I/O solution with native ACPI support. Verify that the 5 V operating voltage aligns with the target system's power rails. Confirm that the 100-pin QFP package fits the available PCB footprint and thermal constraints.

Controllers Part Context

This part belongs to the FDC37C series of Enhanced Super I/O controllers from SMSC. These devices were designed to consolidate multiple legacy I/O functions into a single chip, reducing board space and complexity in personal computers during the transition to ACPI standards.

Controllers Replacement Considerations

Check for direct pin-to-pin replacements within the FDC37C family or updated Super I/O controllers from current manufacturers. Verify functional equivalence regarding ACPI register sets and ISA compatibility when substituting.