Intel A80486SX-20


Specifications

General information
TypeCPU / Microprocessor
FamilyIntel 80486
CPU part numberA80486SX-20 is an OEM/tray microprocessor
Frequency (MHz)  ? 20
Bus speed (MHz)  ? 20
Clock multiplier  ? 1
Package168-pin Pin Grid Array
1.75" x 1.75" (4.45 cm x 4.45 cm)
Introduction date16-Sep-91
Upgrade options
  • Use Intel ODP486SX-20, ODPR486SX-20, SX2ODP50, SX2ODPR50, DX2ODP50 or DX2ODP50 to upgrade to 40 MHz
  • Use Intel DX4ODP75 or DX4ODPR75 to upgrade to 60 MHz
  • Use Intel PODP5V63 to upgrade to Pentium 50 MHz
  • See 80486 upgrade matrix for more information.
 
S-spec numbers
  Production processors
Part number SX406 SX467 SX492 SX678 SXE63
A80486SX-20+++++
 
Architecture / Microarchitecture
Microarchitecturei486
CPUID420 (SX406)
Data width32 bit
Floating Point Unit80487SX co-processor
Level 1 cache size  ? 8 KB 4-way set associative unified code and data cache
Physical memory (GB)4
Virtual memory (TB)64
On-chip peripheralsMemory management unit
 
Electrical/Thermal parameters
V core (V)  ? 5 ± 5%
Minimum/Maximum operating temperature (°C)  ? 0 - 85
Typical/Maximum power dissipation (W)2.25 / 2.78

Pictures (1)

Intel A80486SX-20

20 MHz
168-pin ceramic PGA
Intel A80486SX-20

Comments (0)

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