Intel Pentium III 1000/256/133/1.75V SL52R (PGA370)

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General information
Type    CPU / Microprocessor
Market segment    Desktop
Family    Intel Pentium III
Model number       1B
CPU part number    RB80526PZ001256 (QAN1, QAZ1, QEJ0, QX93, SL4C8, SL4MF, SL4WM, SL52R, SL5DV)
Box part number    BX80526C1000256 (SL4C8, SL4MF, SL52R, SL5B3, SL5DV, SL5FQ)
Frequency (MHz)       1000
Bus speed (MHz)       133
Clock multiplier       7.5
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 8, 2000
Price at introduction    $990

Architecture / Microarchitecture
Processor core       Coppermine
Core steppings      cC0 (SL4C8, SL4MF, SL4WM)
cD0 (QAZ1, QEJ0, SL52R, SL5B3, SL5DV, SL5FQ)
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)    1.62 / 1.7 / 1.74
1.67 / 1.75 / 1.79
1.76 / 1.76 / 1.86
Minimum/Maximum operating temperature (°C)      0 — 70 (1.7V and 1.76V core)
75 (1.75V core)
Maximum power dissipation (W)       32.98 (1.7V core)
35.35 (1.75V core)

Notes on Intel RB80526PZ001256

The processor is usually marked as 1000/256/133/1.7V, 1000/256/133/1.75V or 1000/256/133/1.76V, where the last number specifies processor’s core
voltage. If the processor is marked with RB80526PZ001256 part number then use processor specification number to identify processor’s core voltage
This part is usually referred to as 1B GHz or 1.0B GHz CPU