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Intel A80486SX-25

CPU » 80486 family » Intel » A80486SX-25

Specifications

General information
TypeCPU / Microprocessor
FamilyIntel 80486
CPU part numberA80486SX-25 is an OEM/tray microprocessor
Frequency (MHz)  ? 25
Bus speed (MHz)  ? 25
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-25, ODPR486SX-25, SX2ODP50, SX2ODPR50, DX2ODP50 or DX2ODP50 to upgrade to 50 MHz
  • Use Intel DX4ODP75 or DX4ODPR75 to upgrade to 75 MHz
  • Use Intel PODP5V63 to upgrade to Pentium 63 MHz
  • See 80486 upgrade matrix for more information.
 
S-spec numbers
  Production processors
Part number SX411 SX468 SX514 SX679 SX693 SX719 SX790 SX798 SX826 SX846
A80486SX-25++++++++++
 
  Production processors
Part number SX903 SX930
A80486SX-25++
 
Architecture / Microarchitecture
Microarchitecturei486
CPUIDs420 (SX411, SX468)
422 (SX679, SX826)
423 (SX798, SX903)
42A (SX790)
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
Low power features
  • Stop Clock state (SL enhanced version only)
  • Stop Grant state (SL enhanced version only)
  • Stop Clock Snoop state (SL enhanced version only)
  • Auto Halt state (SL enhanced version only)
  • Upgrade Power Down mode (SL enhanced version only)
On-chip peripheralsMemory management unit
 
Electrical/Thermal parameters
V core (V)  ? 5 ± 5%
Minimum/Maximum operating temperature (°C)  ? 0 - 85
Minimum/Typical/Maximum power dissipation (W)0.33 (Stop Grant mode) / 1.89 / 2.94
 
Notes on Intel A80486SX-25
  • Newer versions of the processor incorporate SL technology.

Pictures (3)

Normal markings

25 MHz
168-pin ceramic PGA		 Intel A80486SX-25
Remarked to A80486SX-33

33 MHz
168-pin ceramic PGA

Remarked to 33 MHz		 Intel A80486SX-25
Remarked A80486SX-25

Original markings were blacked out, and new part number, S-spec number, copyrights and lot number were printed above and below blacked out markings.		 Remarked A80486SX-25

Comments (0)

Last modified: 10 Jan 2012
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