Intel Pentium MMX 166 – FV80503166
- Family: Intel Pentium MMX
- CPU part number: FV80503166
- Frequency: 166MHz
- Bus speed: 66 MHz
- Clock multiplier: 2.5x
- Package:
- 296-pin Staggered Plastic Pin Grid Array (PPGA)
- 1.95″ x 1.95″ (4.95 cm x 4.95 cm)
- Socket: Socket 7
- Introduction date: 8-Jan-1997
- Price at introduction: $407 USD
- Instruction set: x86
- Micro-architecture: P5
- Processor code-name: P55C
- Core stepping:
- A1
- xA3
- xB1
- CPUIDs
- 543
- 544
- 2543
- 2544
- Manufacturing process
- 0.35 micron CMOS process
- 4.5 million transistors
- Data width: 32 bit
- Data bus width: 64 bit
- Floating Point Unit: Integrated
- Level 1 cache size:
- 16 KB instruction cache
- 16 KB data cache
- Physical memory: 4 GB
- Multiprocessing: Up to 2 processors
- Extensions & Technologies: MMX instructions
- Low power features
- System Management Mode
- Clock Control
- SL power-management features
- On-chip peripherals
- Memory Management Unit
- Local Advanced Programmable Interrupt Controller
- Min/Recommended/Max V core: 2.7V / 2.8V / 2.9V
- Min/Recommended/Max V I/O or secondary: 3.135V / 3.3V / 3.6V
- Minimum/Maximum operating temperature: 0°C – 70°C
- Typical/Maximum power dissipation: 6.1 Watt / 15.72 Watt
- Thermal Design Power: 13.1 Watt

