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The '''80386''', also '''i386''' and '''386''', (pronounced ''eighty-three-eighty-six'') was a family of {{arch|32}} 3rd-generation [[x86]] microprocessors introduced by [[Intel]] in [[1985]] as a successor to {{intel|80286}}. These processors provided were fully backwards compatible with previous generations of x86 processors but introduced a number of major new features including enhancements to {{x86|protected mode}} and {{x86|virtual 8086 mode}}. The changes brought about by 386 became the standard for all future {{arch|32}} [[x86]] processors, dubbed [[IA-32|i386-architecture]]. | The '''80386''', also '''i386''' and '''386''', (pronounced ''eighty-three-eighty-six'') was a family of {{arch|32}} 3rd-generation [[x86]] microprocessors introduced by [[Intel]] in [[1985]] as a successor to {{intel|80286}}. These processors provided were fully backwards compatible with previous generations of x86 processors but introduced a number of major new features including enhancements to {{x86|protected mode}} and {{x86|virtual 8086 mode}}. The changes brought about by 386 became the standard for all future {{arch|32}} [[x86]] processors, dubbed [[IA-32|i386-architecture]]. | ||
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+ | == History == | ||
+ | {{empty section}} | ||
== Architecture == | == Architecture == | ||
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| {{\|80386SX-33}} || October 26, 1992 || 16-bit || 33 MHz || | | {{\|80386SX-33}} || October 26, 1992 || 16-bit || 33 MHz || | ||
|- | |- | ||
− | | {{\|80386SL-20}} || October 15, 1990 || 16-bit || | + | | {{\|80386SL-20}} || October 15, 1990 || 16-bit || 33 MHz || |
|- | |- | ||
− | | {{\|80386SL-25}} || September 30, 1991 || 16-bit || | + | | {{\|80386SL-25}} || September 30, 1991 || 16-bit || 33 MHz || |
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− | == | + | == Suppport Chips == |
{| class="wikitable" | {| class="wikitable" | ||
|- | |- |
Facts about "80386 - Intel"
designer | Intel + |
first announced | June 1984 + |
first launched | October 1985 + |
full page name | intel/80386 + |
instance of | microprocessor family + |
instruction set architecture | IA-32 + |
main designer | Intel + |
manufacturer | Intel + |
microarchitecture | 80386 + |
name | Intel 80386 + |
package | PGA-132 + and PQFP-132 + |
process | 1,500 nm (1.5 μm, 0.0015 mm) + and 1,000 nm (1 μm, 0.001 mm) + |
technology | CMOS + |
word size | 32 bit (4 octets, 8 nibbles) + |