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Sun Microsystems STP1031LGA 250 MHz information

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Type:CPU Manufacturer:Sun Microsystems
family:UltraSparc II microprocessors:Sun Microsystems STP1031LGA 250 MHz
General information
Type CPU / Microprocessor
Market segment Server
Family Sun Microsystems UltraSparc II
CPU part number
  • STP1031LGA 250 is an OEM/tray microprocessor
Frequency    250 MHz
Bus speed    83 MHz
Clock multiplier    3
Package 787-land ceramic LGA
Size 1.22" x 1.22" / 3.1cm x 3.1cm
Introduction date January 22, 1997
Architecture / Microarchitecture
Manufacturing process 0.35 micron 5-layer metal CMOS technology
5.4 million transistors
Die size 156.25mm2 (12.5mm x 12.5mm)
Data width 64 bit
Floating Point Unit Integrated
Level 1 cache size    16 KB pseudo 2-way set associative code cache
16 KB write-through direct-mapped data cache
Multiprocessing Up to 4 processors
Features Visual Instruction Set
On-chip peripherals
  • Memory Management Unit
  • Level 2 cache controller
Electrical / Thermal parameters
Min/Recommended/Max V core 2.52V / 2.6V / 2.73V
Min/Recommended/Max V I/O or secondary 3.2V / 3.3V / 3.465V
Minimum/Maximum operating temperature    0°C - 105°C
Maximum power dissipation    26 Watt
Notes on Sun Microsystems UltraSparc II 250 MHz
  • Pin-compatible with UltraSparc I module
  • L2 cache controller supports from 512KB to 16MB of external cache memory
  • Depending on the type of external memory used, the secondary cache runs either at the CPU frequency, or half the CPU frequency
  • The processor supports up to 64-way systems

Sun Microsystems STP1031LGA 250 MHzmicroprocessors pictures
Sun Microsystems STP1031LGA 250 MHz

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