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| title = AMD Am386 | | title = AMD Am386 | ||
| image = AMD Am386DX DXL.jpg | | image = AMD Am386DX DXL.jpg | ||
− | | caption = | + | | caption = Am386DX-40 |
| developer = AMD | | developer = AMD | ||
| manufacturer = AMD | | manufacturer = AMD | ||
| type = Microprocessors | | type = Microprocessors | ||
− | | first announced = | + | | first announced = 1989 |
| first launched = March, 1991 | | first launched = March, 1991 | ||
− | | production start = | + | | production start = 1990 |
| production end = | | production end = | ||
| arch = 80386 | | arch = 80386 | ||
− | | isa = | + | | isa = |
| microarch = | | microarch = | ||
| word = 32 bit | | word = 32 bit | ||
| proc = 800 nm | | proc = 800 nm | ||
| tech = CMOS | | tech = CMOS | ||
+ | | clock = <!-- clock speed, e.g. "740 kHz" IF RANGE, USE PARAM BELOW! --> | ||
| clock min = 20 MHz | | clock min = 20 MHz | ||
| clock max = 40 MHz | | clock max = 40 MHz | ||
Line 24: | Line 25: | ||
| package 4 = PQFP-100 | | package 4 = PQFP-100 | ||
− | | succession = | + | | succession = |
− | | predecessor = | + | | predecessor = |
− | | predecessor link = | + | | predecessor link = |
− | | successor = | + | | successor = |
− | | successor link = | + | | successor link = |
}} | }} | ||
− | '''Am386''' was a family of {{arch|32}} 3rd-generation [[x86]] microprocessors introduced by [[AMD]] in | + | '''Am386''' was a family of {{arch|32}} 3rd-generation [[x86]] microprocessors introduced by [[AMD]] in 1991. Am386 chips were 100%-compatible with [[Intel]]'s {{intel|80386}}, had better performance, ran cooler, used less power, and introduced a number of new innovative features such as sleep-mode for laptops. |
== History == | == History == | ||
− | In 1985 [[Intel]] introduced its 3rd generation [[x86]] microprocessors, the {{intel|80386}} family. AMD had a cross-licensing agreement with Intel which began in 1976, extended in 1982, but was terminated in 1987 - an agreement that AMD used to second-source Intel's {{intel|8086}}, {{intel|80186}}, and {{intel|80286}}. AMD's argument was that the | + | In 1985 [[Intel]] introduced its 3rd generation [[x86]] microprocessors, the {{intel|80386}} family. AMD had a cross-licensing agreement with Intel which began in 1976, extended in 1982, but was terminated in 1987 - an agreement that AMD used to second-source Intel's {{intel|8086}}, {{intel|80186}}, and {{intel|80286}}. AMD's argument was that the 82 contract covered all derivatives of those chips while Intel claimed the contract only covered the {{intel|80286}} family and prior. While Intel refused to share their microcode for the 386, AMD used that agreement to obtain it anyway through reverse engineering. AMD started reverse engineering the chip in 1988. The team responsible for the project was headed by Ben Oliver's group in their new their [[0.8 µm process]] in [[wikipedia:Austin, TX|Austin, TX]]. Development took around eighteen months with a working batch by the end of 1989. Expensive and lengthy litigation with Intel delayed their introduction to the market until March of 1991 which nullified Intel's attempt at trademarking the generic "386" chip designation. |
− | The final result was a chip that had over 20% better performance, ran cooler, and used less power. AMD started shipping 386 chips in March of 1991. | + | The final result was a chip that had better over 20% better performance, ran cooler, and used less power. AMD started shipping 386 chips in March of 1991. Regardless of the delay, 386 was a major success for AMD ending up selling millions of Am386 chips, emerging as a serious contender to Intel. By the end of 1992, AMD was out-producing Intel with 9.5 million units sold, generating over half a billion dollars, and overtaking [[Motorola]] as the world's second largest microprocessor manufacturer<ref name="book1">{{cite book|last=Fletcher|first=Andrew|middle=E|year=2013|title=Profile of the Worldwide Semiconductor Industry - Market Prospects to 1997: Market Prospects to 1997|publisher=Elsevier|pages=96-97|isbn=9781483284859}}</ref>. That year AMD was accounted for around 60% of all 386s sold<ref name="book1" />. |
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== References == | == References == | ||
{{reflist}} | {{reflist}} |
Facts about "Am386 - AMD"
designer | AMD + |
first announced | January 1991 + |
first launched | March 1991 + |
full page name | amd/am386 + |
instance of | microprocessor family + |
instruction set architecture | IA-32 + |
main designer | AMD + |
manufacturer | AMD + |
name | AMD Am386 + |
package | PGA-132 +, PQFP-132 +, PGA-88 + and PQFP-100 + |
process | 800 nm (0.8 μm, 8.0e-4 mm) + |
technology | CMOS + |
word size | 32 bit (4 octets, 8 nibbles) + |