إنتل 80486
Intel 486 وحدة المعالجة المركزية | |
الجزء المعرض للخطر من (يسمى die) أي معالج 80486DX2 | |
أُنتج: | 1989 |
أصغر حجم: | 1 µm إلى 0.6 µm |
المعالج أنتل 80486 والمعروف أيضا بـ i486 أو 80486 (بالإنجليزية: Intel 80486) وهو معالج ذو أداء عالي وتبع المعالج إنتل 80386
نبذة تاريخية
أعلن عنه (486) في ربيع المعرض الدولي السانوي كومديكس في أبريل 1989 عندما أعلنت إنتل
تحسينات
Intel 486 registers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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نموذج أو موديل | السرعة القصوى clock | الفولت (Voltage) | ذاكرة مخبئية | ظهر في | ملاحظات | |
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i486DX (P4) | 20, 25 MHz 33 MHz 50 MHz | 5V | 8 KB WT | April 1989 May 1990 June 1991 | The original chip (without any clock doubling) | |
i486SL | 20, 25, 33 MHz | 5V or 3.3V | 8 KB WT | November 1992 | Low power version of the i486DX, reduced VCore, SMM (وضع إدارة النظام), stop clock, and power saving features – mainly for use in portable computers | |
i486SX (P23) | 16, 20, 25 MHz 33 MHz | 5V | 8 KB WT | September 1991 September 1992 | An i486DX with the FPU part disabled or missing. Early variants were parts with disabled (defective) FPUs.[1] Later versions had the FPU removed from the die to reduce area and hence cost. | |
i486DX2 (P24) | 40/20, 50/25 MHz 66/33 MHz | 5V | 8 KB WT | March 1992 August 1992 | The internal processor clock runs at twice the معدل ساعة (حاسوب) of the external bus clock | |
i486DX-S (P4S) | 33 MHz; 50 MHz | 5V or 3.3V | 8 KB WT | June 1993 | SL Enhanced 486DX | |
i486DX2-S (P24S) | 40/20, 50/25 MHz (66/33 MHz) | 5V or 3.3V | 8 KB WT | June 1993 | ||
i486SX-S (P23S) | 25, 33 MHz | 5V or 3.3V | 8 KB WT | June 1993 | SL Enhanced 486SX | |
i486SX2 | 50/25, 66/33 MHz | 5V | 8 KB WT | March 1994 | i486DX2 with the FPU disabled | |
IntelDX4 (P24C) | 75/25, 100/33 MHz | 3.3V | 16 KB WT | March 1994 | Designed to run at triple clock rate (not quadruple as often believed; the DX3, which was meant to run at 2.5× the clock speed, was never released). DX4 models that featured write-back cache were identified by an "&EW" laser etched into their top surface, while the write-through models were identified by "&E". | |
IntelDX4WB | 100/33 MHz | 3.3V | 16 KB WB | October 1994 | ||
i486DX2WB (P24D) | 50/25, 66/33 MHz | 5V | 8 KB WB | October 1994 | ||
i486DX2 (P24LM) | 90/30 MHz; 100/33 MHz | 2.5–2.9V | 8 KB WT | 1994 | ||
i486GX | up to 33 MHz | 3.3V | 8 KB WT | Embedded Ultra-Low power CPU with all features of the i486SX and 16 bit external data bus. This CPU is for embedded battery-operated and hand-held applications. |
روابط خارجية
- Intel486 datasheets
- Low power SX and DX with variable freq. Dec 1992
- EMBEDDED ULTRA-LOW POWER Intel 486 SX
- Embedded Write-Back Enhanced Intel DX4. Oct 1995
- Intel 486 images and descriptions at cpu-collection.de
- Die photo of Intel 486DX
انظر أيضا
مراجع
- ^ Newnes 8086 Family Pocket Book – Ian Sinclair (ISBN 0 4349 1872 5)
- بوابة إلكترونيات
- بوابة تقانة المعلومات
- بوابة علم الحاسوب
هذه بذرة مقالة عن برمجية بحاجة للتوسيع. فضلًا شارك في تحريرها. |