Editing intel/microarchitectures/80486

{{intel title|80486|arch}}
{{microarchitecture
| atype            = CPU
| name             = 80486
| designer         = Intel
| manufacturer     = Intel
| manufacturer 2   = AMD
| introduction     = April 10, 1989
| phase-out        = 1995
| process          = 1 µm
| process 2        = 800 nm
| process 3        = 600 nm
|isa=x86-32

| succession       = Yes
| predecessor      = 80386
| predecessor link = intel/microarchitectures/80386
| successor        = P5
| successor link   = intel/microarchitectures/p5
| successor 2      = K5
| successor 2 link = amd/microarchitectures/K5
}}
'''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 This architecture was superseded by Intel's {{\\|P5}} in 1992 and {{amd|microarchitectures/k5|K5}} in 1994.

== History ==
{{empty section}}

== Process Technology ==
{{empty section}}

== Architecture ==

=== Key changes from {{\\|80386}} ===
* Testability
** [[JTAG]] interface support (Std. 1149.1-1990)

== Die Shot ==
* [[1 µm process]]
* 1,200,000 transistors
[[File:486dx die shot.png]]
codename	80486 +
designer	Intel +
first launched	April 10, 1989 +
full page name	intel/microarchitectures/80486 +
instance of	microarchitecture +
instruction set architecture	x86-32 +
manufacturer	Intel + and AMD +
microarchitecture type	CPU +
name	80486 +
phase-out	1995 +
process	1,000 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) +