FA80486SXSF33

Microprocessors Overview

The Intel FA80486SXSF33 is an i486 SX microprocessor IC operating at a clock speed of 33MHz. It features a single 32-bit core and utilizes a 176-TQFP (24x24) surface-mount package. The component functions with a 3.3V I/O voltage and supports a commercial operating temperature range of 0°C to 85°C (TC). This processor belongs to the Intel486 series and represents a legacy embedded processing solution.

Microprocessors Feature Summary

• Integrated i486 SX architecture providing 32-bit processing capabilities
• Surface-mount 176-TQFP packaging for compact board integration
• Designed for commercial temperature environments

Microprocessors Applications

• Legacy desktop computer systems requiring i486 processing
• Embedded control applications utilizing 32-bit x86 architecture
• Industrial equipment maintenance using historical hardware platforms

Microprocessors Procurement Notes

Verify component authenticity through official Intel channels or authorized distributors, as this part is discontinued. Confirm package integrity upon receipt, as TQFP pins are susceptible to damage during handling. Ensure compatibility with existing 3.3V logic levels and motherboard socket specifications before procurement. Check for RoHS compliance status if environmental regulations apply to the end application.

Microprocessors Selection Notes

Select this component only when specific legacy compatibility with the i486 SX architecture is required. Consider that it lacks integrated floating-point unit functionality compared to DX variants. Evaluate system requirements against available replacement options, as modern processors offer significantly higher performance. Verify that the host system supports the 176-TQFP form factor and 33MHz bus speeds.

Microprocessors Part Context

This processor is part of the Intel486 family, specifically the SX variant which excludes the internal floating-point unit found in DX models. It was designed for cost-sensitive markets where FPU performance was not critical. The 33MHz frequency represents a standard speed tier for late-generation 486 systems, balancing performance and power consumption for its era.

Microprocessors Replacement Considerations

No public confirmed substitute part numbers are available for direct pin-to-pin replacement.