FDC37C935FRQFP

Controllers Overview

The FDC37C935FRQFP is a multifunction peripheral integrated circuit manufactured by SMSC, designed for PC-AT and compatible systems. It operates on a single 5V supply with a voltage range of 4.5V to 5.5V. The device utilizes a CMOS process and is housed in a 100-pin Quad Flat Package (QFP) with a 0.65mm pitch. It features an 8-bit external data bus and an 11-bit address bus, supporting ISA bus compatibility. The maximum functional clock frequency is 14.32 MHz, operating within a commercial temperature range of 0°C to 70°C.

Controllers Feature Summary

• Supports intelligent auto power management capabilities
• Includes shadowed write-only registers for ACPI compliance
• Compatible with PC98/99 and ACPI 1.0 standards

Controllers Applications

• Super I/O controller functions in IBM PC-AT compatible systems
• ISA bus interface implementation
• ACPI 1.0 compliant system designs

Controllers Procurement Notes

Verify the manufacturer source against SMSC documentation. Confirm the package type is QFP-100 and the operating voltage is 5V. Ensure the temperature grade matches commercial specifications. Check for specific suffix variations that may indicate different packaging or testing levels.

Controllers Selection Notes

Select this component for legacy ISA-based architectures requiring Super I/O functionality. Ensure the design supports the 5V logic level and 14.32 MHz clock limit. Verify that the 100-pin QFP footprint fits the PCB layout constraints. Consider thermal dissipation within the 0°C to 70°C operational window.

Controllers Part Context

This part belongs to the FDC37C series of multifunction peripherals from SMSC. These chips integrate standard PC I/O functions into a single CMOS package. The series is characterized by its compatibility with older ISA bus standards and support for emerging power management protocols of its era.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-referencing requires consulting official SMSC obsolescence notices or equivalent legacy Super I/O controllers with identical pinouts and electrical characteristics.