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'''80486''' was the [[microarchitecture]] for [[Intel]]'s {{intel|80486}} line of microprocessors as a successor to the {{\\|80386}}. Introduced in April of 89, 80486 was initially manufactured using [[1 µm process]] (later [[800 nm]]). For AMD, this microarchitecture was used for their {{amd|Am486}} and {{amd|Am5x86}} families. This architecture was superseded by Intel's {{\\|P5}} in 1992 and {{amd|microarchitectures/k5|K5}} in 1994.
 
'''80486''' was the [[microarchitecture]] for [[Intel]]'s {{intel|80486}} line of microprocessors as a successor to the {{\\|80386}}. Introduced in April of 89, 80486 was initially manufactured using [[1 µm process]] (later [[800 nm]]). For AMD, this microarchitecture was used for their {{amd|Am486}} and {{amd|Am5x86}} families. This architecture was superseded by Intel's {{\\|P5}} in 1992 and {{amd|microarchitectures/k5|K5}} in 1994.
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== History ==
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{{empty section}}
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== Process Technology ==
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{{empty section}}
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== Architecture ==
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=== Key changes from {{\\|80386}} ===
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* Testability
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** [[JTAG]] interface support (Std. 1149.1-1990)
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== Die Shot ==
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* [[1 µm process]]
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* 1,200,000 transistors
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[[File:486dx die shot.png]]

Latest revision as of 18:34, 30 November 2017

Edit Values
80486 µarch
General Info
Arch TypeCPU
DesignerIntel
ManufacturerIntel, AMD
IntroductionApril 10, 1989
Phase-out1995
Process1 µm, 800 nm, 600 nm
Instructions
ISAx86-32
Succession

80486 was the microarchitecture for Intel's 80486 line of microprocessors as a successor to the 80386. Introduced in April of 89, 80486 was initially manufactured using 1 µm process (later 800 nm). For AMD, this microarchitecture was used for their Am486 and Am5x86 families. This architecture was superseded by Intel's P5 in 1992 and K5 in 1994.

History[edit]

New text document.svg This section is empty; you can help add the missing info by editing this page.

Process Technology[edit]

New text document.svg This section is empty; you can help add the missing info by editing this page.

Architecture[edit]

Key changes from 80386[edit]

  • Testability
    • JTAG interface support (Std. 1149.1-1990)

Die Shot[edit]

486dx die shot.png

codename80486 +
designerIntel +
first launchedApril 10, 1989 +
full page nameintel/microarchitectures/80486 +
instance ofmicroarchitecture +
manufacturerIntel + and AMD +
microarchitecture typeCPU +
name80486 +
phase-out1995 +
process1,000 nm (1 μm, 0.001 mm) +, 800 nm (0.8 μm, 8.0e-4 mm) + and 600 nm (0.6 μm, 6.0e-4 mm) +