FDC37C665GT-MS

Controllers Overview

The FDC37C665GT-MS is a Super I/O controller featuring an integrated floppy disk controller, dual UARTs, and a multi-mode parallel port. It operates on a single 5V supply and utilizes a 100-pin QFP package. The device includes a licensed CMOS 765B core for 2.88MB floppy support, two NS16C550-compatible serial ports with 16-byte FIFOs, and an IDE interface. It supports EPP 1.7/1.9 and ECP modes with ChiProtect circuitry.

Controllers Feature Summary

• Integrated Super I/O functionality combining floppy disk, serial, parallel, and IDE interfaces in a single chip.
• Supports high-speed data transfer via Enhanced Parallel Port (EPP) and Extended Capabilities Port (ECP) standards.
• Includes advanced digital data separator technology eliminating the need for external filter components.
• Features software-configurable logic for flexible system configuration of key peripheral functions.

Controllers Applications

• Motherboard embedded controller designs
• Controller card implementations
• Systems requiring legacy ISA bus compatibility

Controllers Procurement Notes

Verify the specific suffix MS against the manufacturer's official documentation to confirm package type and temperature range specifications. Ensure the source component matches the SMSC/FDC37C665GT datasheet requirements for voltage and pinout compatibility before integration into the design.

Controllers Selection Notes

Select this component for applications requiring a comprehensive Super I/O solution with direct floppy drive support and parallel port capabilities. Consider the hardware compatibility with existing 82077AA software drivers and the specific motherboard versus adapter card orientation when evaluating system architecture needs.

Controllers Part Context

This part belongs to the FDC37C66xGT family of high-performance multi-mode parallel port Super I/O controllers. It shares architectural similarities with the FDC37C666GT but is optimized specifically for motherboard applications rather than controller cards.

Controllers Replacement Considerations

The FDC37C665GT is hardware compatible with the FDC37C651 and FDC37C661 in Standard and Enhanced Parallel Port Modes. Verify register compatibility with the 82077AA if migrating from other floppy disk controller solutions.