CPU Information
| General information |
| Type | CPU / Microprocessor |
| Family | Intel 80486 |
| CPU part number | A80486SX-25 (SX411, SX468, SX514, SX679, SX693, SX719, SX790, SX798, SX826, SX846, SX903, SX930) |
| Frequency (MHz) ? | 25 |
| Bus speed (MHz) ? | 25 |
| Clock multiplier ? | 1 |
| Package | 168-pin Pin Grid Array
1.75" x 1.75" (4.45 cm x 4.45 cm) |
| Introduction date | 16-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.
|
| | | Architecture / Microarchitecture |
| Data width | 32 bit |
| Floating Point Unit | 80487SX 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 peripherals | Memory 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)
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| Normal markings |
25 MHz
168-pin ceramic PGA |
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| Remarked to A80486SX-33 |
33 MHz
168-pin ceramic PGA
Remarked to 33 MHz |
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| 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. |
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