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Intel Pentium Pro 166 512 KB - KB80521EX166 512K (BP80521166 512K)

CPU » Pentium II family » Pentium Pro » KB80521EX166 512K

CPU Information

General information
TypeCPU / Microprocessor
FamilyIntel Pentium Pro
CPU part numberKB80521EX166 512K (Q0918, Q935, SY034, SY047)
Box part numberBP80521166 512K
Frequency (MHz)  ? 166
Bus speed (MHz)  ? 66
Clock multiplier  ? 2.5
Package387-pin Modified Staggered Ceramic Pin Grid Array with gold plated heat spreader
2.66" x 2.46" (6.76 cm x 6.25 cm)
SocketSocket 8
Weight3.2oz / 90g
Introduction date1-Nov-95
Upgrade optionsPentium II Overdrive
 
Architecture / Microarchitecture
Core steppingsA1 (Q0918, Q935, SY034, SY047)
Manufacturing process0.35 and 0.6 micron
5.5 million transistors
Data width32 bit
Data bus width64 bit
Floating Point UnitIntegrated
Level 1 cache size  ? 8 KB four-way set associative code
8 KB two-way set associative data
Level 2 cache size  ? 512 KB
Pipeline12-stage
MultiprocessingUp to 4 processors
Low power features
  • Stop Grant mode  ? 
  • Auto HALT mode  ? 
 
Electrical/Thermal parameters
V core (V)  ? 3.3 ± 5%
Minimum/Maximum operating temperature (°C)  ? 0 - 85
Minimum/Typical/Maximum power dissipation (W)3.96 (Stop Grant mode) / 27.5 / 38.81
Thermal Design Power (W)  ? 35
 
Notes on Intel KB80521EX166 512K
  • Minimum core frequency is 150 MHz
  • Minum bus frequency is 50 MHz

Pictures (2)

Production part

166 MHz
512 KB L2 cache
387-pin modified SPGA
Gold plated heat spreader

Image reduced 2x times		 Intel Pentium Pro 166 512 KB - KB80521EX166 512K (BP80521166 512K)
Pre-production sample

166 MHz
512 KB L2 cache
387-pin modified SPGA
Gold plated heat spreader

Pre-production version
Image reduced 2x times		 Intel Pentium Pro 166 512 KB - KB80521EX166 512K (BP80521166 512K)
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CPU ID

NOTE: CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the Intel Pentium Pro 166 MHz CPU.

Manufacturer:Intel
Family:Pentium Pro
Model / Processor Number:166 MHz
Part number:KB80521EX166 512K
S-Spec / Comment:SL22X
Submitted by:cocoe
General information
Vendor:GenuineIntel
Processor type:Original OEM Processor
CPUID signature:619
Family: 6 (06h)
Model: 1 (01h)
Stepping: 9 (09h)
TLB/Cache details:Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Data TLB: 4-MB Pages, 4-way set associative, 8 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 32 entries
Instruction TLB: 4-MB Pages, fully associative, 2 entries

Cache: L1 (data) L1 (instruction) L2
Size: 8 KB 8 KB 512 KB
Associativity: 2-way set associative 4-way set associative 4-way set associative
Line size: 32 bytes 32 bytes 32 bytes
 
Instruction set extensionsAdditonal instructions
  CMOV
  CMPXCHG8B
 
Major featuresOther features
On-chip Floating Point Unit Debugging extensions
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  Time stamp counter
  Virtual 8086-mode enhancements

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Last modified: 21 Nov 2009
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