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General information
Type    CPU / Microprocessor
Family    Intel Pentium II
Part number    BX80523U400512E
80523PY400512PE
Processor markings    400/512/100/2.0V
Frequency (MHz)    400
Bus speed (MHz)       100
Package type    SECC2 PLGA
Socket type    Slot 1

Architecture / Microarchitecture / Other
CPUID    0652h
Core stepping    dB0
Processor core    Deschutes
Manufacturing technology (micron)    0.25
L2 cache size (KB)       512
Core voltage (V)       2.0 (1.93 – 2.1)
Case temperature (°C)       80
TagRAM    T6P-e
TagRAM stepping    0
Processor substrate revision    B1

Notes on sSpec SL3EE

Cacheable address space supports up to 4 Gbytes.
This part also ships as a boxed processor with an attached fan heatsink.
L2 cache supports ECC

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General information
Type    CPU / Microprocessor
Market segment    Desktop
Family    Intel Pentium II
CPU part number    80522PX233512 (SL264, SL2HD)
Box part number    B80522P233512 (SL28K, SL2QA)
Frequency (MHz)       233
Bus speed (MHz)       66
Clock multiplier       3.5
Package    Single Edge Contact Cartridge
5.505″ x 2.473″ x 0.647″ (13.98 cm x 6.28 cm x 1.64 cm)
Socket    Slot 1
Introduction date    7-May-97
Price at introduction    $636

Architecture / Microarchitecture
Processor core       Klamath
Core steppings       C0 (SL264, SL28K)
C1 (SL2HD, SL2QA)
Manufacturing process    0.35 micron, 7.5 million transistors
Data width    32 bit
Data bus width    64 bit
Floating Point Unit    Integrated
Level 1 cache size       16 KB code
16 KB data
Level 2 cache size       512 KB unified cache running at 1/2 of processor frequency
Physical memory (GB)    64
Multiprocessing    Up to 2 processors
Low power features
AutoHALT state
Stop Grant state
Sleep state  ?
Deep Sleep state

Electrical/Thermal parameters
V core (V)       2.8
V L2 cache (V)    3.3 ± 5%
Maximum operating temperature (°C)       75
Maximum power dissipation (W)  ?     41.71
Thermal Design Power (W)       34.8

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General information
Type    CPU / Microprocessor
Market segment    Desktop
Family    Intel Pentium II
CPU part number    80523PX333512 (Q288, SL2KA, SL2S5)
Frequency (MHz)       333
Bus speed (MHz)       66
Clock multiplier       5
Package    Single Edge Contact Cartridge
5.505″ x 2.473″ x 0.647″ (13.98 cm x 6.28 cm x 1.64 cm)
Socket    Slot 1
Introduction date    26-Jan-98
Price at introduction    $722

Architecture / Microarchitecture
Processor core      Deschutes
Core steppings       dA0 (SL2KA)
dA1 (SL2S5)
Manufacturing process    0.25 micron, 7.5 million transistors
Data width    32 bit
Data bus width    64 bit
Floating Point Unit    Integrated
Level 1 cache size       16 KB code
16 KB data
Level 2 cache size  ?     512 KB unified cache running at 1/2 of processor frequency
Physical memory (GB)    64
Multiprocessing    Up to 2 processors
Low power features
AutoHALT state
Stop Grant state
Sleep state  ?
Deep Sleep state

Electrical/Thermal parameters
V core (V)       2
V L2 cache (V)    3.3 ± 5%
Maximum operating temperature (°C)       65
Maximum power dissipation (W)       25.92
Thermal Design Power (W)       23.7

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General information
Type    CPU / Microprocessor
Market segment    Desktop
Family    Intel Pentium II
CPU part number    80523PY400512 (Q434, SL2S7)
Frequency (MHz)       400
Bus speed (MHz)       100
Clock multiplier       4
Package    Single Edge Contact Cartridge
5.505″ x 2.473″ x 0.647″ (13.98 cm x 6.28 cm x 1.64 cm)
Socket    Slot 1
Introduction date    15-Apr-98
Price at introduction    $824

Architecture / Microarchitecture
Processor core      Deschutes
Core stepping       dA1 (SL2S7)
Manufacturing process    0.25 micron, 7.5 million transistors
Data width    32 bit
Data bus width    64 bit
Floating Point Unit    Integrated
Level 1 cache size       16 KB code
16 KB data
Level 2 cache size      512 KB unified cache running at 1/2 of processor frequency
Physical memory (GB)    64
Multiprocessing    Up to 2 processors
Low power features
AutoHALT state
Stop Grant state
Sleep state
Deep Sleep state

Electrical/Thermal parameters
Min/Recommended/Max V core (V)    1.9 / 2 / 2.1
V L2 cache (V)    3.3 ± 5%
Maximum operating temperature (°C)       75
Maximum power dissipation (W)       32.73
Thermal Design Power (W)       24.3