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General information
Type CPU / Microprocessor
Market segment Desktop
Family Intel Pentium III
CPU part number RB80526PZ866256 (QAN4, QS82, QV42, SL43J, SL4CB, SL4ZJ, SL5DX)
Box part numbers BX80526C866256 (SL49H, SL4MD)
BX80526C866256E (SL43J, SL4ZJ, SL5DX)
Frequency (MHz) 866
Bus speed (MHz) 133
Clock multiplier 6.5
Package 370-pin Flip-Chip Pin Grid Array (FC-PGA)
1.95″ x 1.95″ (4.95 cm x 4.95 cm)
Socket Socket 370
Introduction date Mar 20, 2000
Architecture / Microarchitecture
Processor core Coppermine
Core steppings cB0 (SL43J)
cC0 (SL4CB, SL4MD)
cD0 (SL4ZJ, SL5DX)
Manufacturing process 0.18 micron
28 million transistors
Data width 32 (64-bit data bus) bit
Floating Point Unit Integrated
Level 1 cache size 16 KB instruction cache
16 KB data cache
Level 2 cache size Full-speed integrated 8-way set associative 256 KB
Features
* MMX technology
* SSE instructions
Low power features
* AutoHALT state
* Stop Grant state
* Sleep state
* Deep Sleep state
* System Management Mode
Electrical/Thermal parameters
Min/Recommended/Max V core (V) 1.57 / 1.65 / 1.69
1.62 / 1.7 / 1.74
1.67 / 1.75 / 1.79
Minimum/Maximum operating temperature (°C) 0 — 80
Maximum power dissipation (W) 27.71 (1.7V core)
30.8 (1.75V core)
Notes on Intel RB80526PZ866256
The processor is usually marked as 866/256/133/1.65V, 866/256/133/1.7V or 866/256/133/1.75V, where the last number specifies processor’s core
voltage. If the processor is marked with RB80526PZ866256 part number then use processor specification number to identify processor’s core voltage