FDC37M817-MS

Controllers Overview

The FDC37M817-MS is an enhanced Super I/O controller manufactured by Microchip Technology, designed for PC98/99 compliant systems. It integrates a keyboard interface with wake-up capabilities, a true CMOS 765B floppy disk controller, and two 16C550A compatible UARTs. The device features a Multi-Mode parallel port supporting EPP and ECP protocols with ChiProtect circuitry. Additional functions include on-chip AT bus drivers, floppy direct drive support, and Intelligent Power Management with PME support. It operates within a voltage range of 4.5V to 5.5V and is housed in a 100-TQFP package.

Controllers Feature Summary

• Integrates a true CMOS 765B floppy disk controller core ensuring compatibility with IBM PC/XT and PC/AT architectures.
• Includes a Multi-Mode parallel port equipped with ChiProtect circuitry and support for EPP and ECP standards.
• Provides Intelligent Power Management features including Power Management Event (PME) support.
• Incorporates IrDA v1.0 support alongside keyboard and mouse wake-up functionality.

Controllers Applications

• PC98/99 compliant computer system designs
• Enhanced Super I/O controller implementations
• Systems requiring floppy disk and parallel port integration

Controllers Procurement Notes

Verify the manufacturer designation as SMSC Corporation or Microchip Technology, noting the acquisition history. Confirm the specific suffix MS indicates the TQFP package variant. Check for RoHS compliance status and ensure the datasheet version matches the required revision for design-in. Validate supply chain authenticity through authorized distributors.

Controllers Selection Notes

Select this component for legacy PC architectures requiring integrated I/O control. Ensure the design supports the 4.5V to 5.5V operating voltage range. Verify that the 100-TQFP footprint fits the PCB layout constraints. Consider the IrDA and parallel port requirements when evaluating alternative Super I/O solutions.

Controllers Part Context

This part belongs to the FDC37M81x series of enhanced Super I/O controllers. It is functionally related to models like the FDC37M817 and FDC37B80X, which share similar feature sets including PC98/99 compliance and wake-up capabilities. The series targets desktop and industrial computing applications needing consolidated I/O management.

Controllers Replacement Considerations

Potential substitutes include the FDC37B80X and FDC37M707 from the same family. Cross-reference pinouts and electrical characteristics carefully. Verify software compatibility if migrating between different revisions of the Super I/O controller series.