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Intel A80486DX-25 information

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Type:CPU Manufacturer:Intel
family:80486 microprocessors:Intel A80486SX-16
General information
Type CPU / Microprocessor
Family Intel 80486
CPU part number
  • A80486DX-25 is an OEM/tray microprocessor
Frequency    25 MHz
Bus speed    25 MHz
Clock multiplier    1
Package 168-pin Pin Grid Array
1.75" x 1.75" (4.45 cm x 4.45 cm)
Socket PGA168
Introduction date 10-Apr-89
Upgrade options
  • Intel ODP486DX-25, ODPR486DX-25, DX2ODP50 or DX2ODPR50 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
Part number ES/QS processors Production processors
  Q0143 SX250 SX300 SX308 SX328 SX418 SX493 SX728
A80486DX-25 + + + + + + + +
Architecture / Microarchitecture
Microarchitecture i486
CPUIDs 401 (SX308)
402 (SX328)
404 (SX418)
Manufacturing process 1 micron CHMOS IV technology
0.8 micron CHMOS V technology
1.2 million transistors
Data width 32 bit
Floating Point Unit Integrated
Level 1 cache size    8 KB 4-way set associative unified code and data cache
Physical memory 4 GB
Virtual memory 64 TB
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 peripherals Memory management unit
Electrical / Thermal parameters
V core    5V ± 5%
Minimum/Maximum operating temperature    0°C - 85°C
Typical/Maximum power dissipation 2.75 Watt / 3.68 Watt
Notes on Intel 25 MHz
  • Newer versions of the processor incorporate SL technology.


other microprocessors
Intel A80486DX-33 Intel A80486DX2-40
Intel A80486SX2-50 Intel A80486DX-50
Intel A80486DX2-50 Intel A80486DX2-66
Intel A80486DX4-75 Intel A80486DX4-100
Intel FA80486SX33 Intel FC80486DX4-75
Intel FC80486DX4-100 Intel KU80486SL-20

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