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Difference between revisions of "amd/am486"
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'''Am486''' was a family of {{arch|32}} 4th-generation [[x86]] microprocessors introduced by [[AMD]] in [[1993]]. Am486 chips were 100%-compatible with [[Intel]]'s {{intel|80486}}, but offered very equivalent performance for cheaper prices.
+
'''Am486''' was a family of {{arch|32}} 4th-generation [[x86]] microprocessors introduced by [[AMD]] in [[1993]]. Am486 chips were compatible with [[Intel]]'s {{intel|80486}}, but offered very equivalent performance for cheaper prices.
  
 
== History ==
 
== History ==

Revision as of 03:26, 15 May 2016

AMD Am486
AMD Am486.jpg
Am486DX2-66
Developer AMD
Manufacturer AMD
Type Microprocessors
Introduction 1991 (announced)
April 1993 (launch)
Production 1992
Architecture 80486
ISA IA-32
Word size 32 bit
4 octets
8 nibbles
Process 700 nm
0.7 μm
7.0e-4 mm
, 500 nm
0.5 μm
5.0e-4 mm
, 440 nm
0.44 μm
4.4e-4 mm
, 350 nm
0.35 μm
3.5e-4 mm
Technology CMOS
Clock 33 Mhz-120 MHz
Package PGA-168, QFP-208
Socket Socket 1, Socket 2, Socket 3
Succession
← →
Am386 Am5x86

Am486 was a family of 32-bit 4th-generation x86 microprocessors introduced by AMD in 1993. Am486 chips were compatible with Intel's 80486, but offered very equivalent performance for cheaper prices.

History

Just like AMD's Am386, Am486 was also delayed after expensive and lengthy litigation with Intel. The first models of the Am486 (Am486DX) were finally introduced in April of 1993. AMD manufactured their first Am486s at their Submicron Development Center (SDC) in Sunnyvale, CA on a 0.7 µm process. By the end of 1993 AMD revenue of the Am486 reached $250M taking a total of 20% share of the market[1]. By 1995 that share peaked at 40%.

AMD's last models (Am486DX4's) for this family were clocked at up to 120 MHz which gave AMD a significant performance advantage compared to Intel's earliest Pentium chips (which were only clocked at around 60 MHz). The Am486DX4 lower price (compared to Intel's DX4) and socket-comparability ensured strong sale for quite some time after their introduction.

Members

Am486DX

Am486DX Processors
ModelLaunchedProcessFreqBusMax Mem
Am486DX-25April 1993700 nm
0.7 μm
7.0e-4 mm
25 MHz
0.025 GHz
25,000 kHz
25 MHz
0.025 GHz
25,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX-33April 1993700 nm
0.7 μm
7.0e-4 mm
33 MHz
0.033 GHz
33,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX-40April 1993700 nm
0.7 μm
7.0e-4 mm
40 MHz
0.04 GHz
40,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-100September 1994500 nm
0.5 μm
5.0e-4 mm
100 MHz
0.1 GHz
100,000 kHz
50 MHz
0.05 GHz
50,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-100V16B1995350 nm
0.35 μm
3.5e-4 mm
100 MHz
0.1 GHz
100,000 kHz
50 MHz
0.05 GHz
50,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-100V8B1994500 nm
0.5 μm
5.0e-4 mm
100 MHz
0.1 GHz
100,000 kHz
50 MHz
0.05 GHz
50,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-100V8T1994500 nm
0.5 μm
5.0e-4 mm
100 MHz
0.1 GHz
100,000 kHz
50 MHz
0.05 GHz
50,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-50June 1993700 nm
0.7 μm
7.0e-4 mm
500 nm
0.5 μm
5.0e-4 mm
50 MHz
0.05 GHz
50,000 kHz
25 MHz
0.025 GHz
25,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-66June 1993700 nm
0.7 μm
7.0e-4 mm
500 nm
0.5 μm
5.0e-4 mm
66 MHz
0.066 GHz
66,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-66NV8TAugust 1995500 nm
0.5 μm
5.0e-4 mm
66 MHz
0.066 GHz
66,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-66V16BMarch 1997350 nm
0.35 μm
3.5e-4 mm
66 MHz
0.066 GHz
66,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-66V8B1994500 nm
0.5 μm
5.0e-4 mm
66 MHz
0.066 GHz
66,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-66V8T1994500 nm
0.5 μm
5.0e-4 mm
66 MHz
0.066 GHz
66,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-80September 1994500 nm
0.5 μm
5.0e-4 mm
80 MHz
0.08 GHz
80,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-80NV8TAugust 1995500 nm
0.5 μm
5.0e-4 mm
80 MHz
0.08 GHz
80,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX2-80V8T1994500 nm
0.5 μm
5.0e-4 mm
80 MHz
0.08 GHz
80,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-100September 1994500 nm
0.5 μm
5.0e-4 mm
100 MHz
0.1 GHz
100,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-100NV8T1995500 nm
0.5 μm
5.0e-4 mm
100 MHz
0.1 GHz
100,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-100V16BMarch 1997350 nm
0.35 μm
3.5e-4 mm
100 MHz
0.1 GHz
100,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-100V8T1994500 nm
0.5 μm
5.0e-4 mm
100 MHz
0.1 GHz
100,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-1205 June 1995500 nm
0.5 μm
5.0e-4 mm
120 MHz
0.12 GHz
120,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-120NV8T1995500 nm
0.5 μm
5.0e-4 mm
120 MHz
0.12 GHz
120,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-120V8T1995500 nm
0.5 μm
5.0e-4 mm
120 MHz
0.12 GHz
120,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-75September 1994500 nm
0.5 μm
5.0e-4 mm
75 MHz
0.075 GHz
75,000 kHz
25 MHz
0.025 GHz
25,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-90September 1994500 nm
0.5 μm
5.0e-4 mm
90 MHz
0.09 GHz
90,000 kHz
30 MHz
0.03 GHz
30,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DX4-90NV8T1995500 nm
0.5 μm
5.0e-4 mm
90 MHz
0.09 GHz
90,000 kHz
30 MHz
0.03 GHz
30,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DXL-40October 1993700 nm
0.7 μm
7.0e-4 mm
40 MHz
0.04 GHz
40,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DXL2-66September 1993700 nm
0.7 μm
7.0e-4 mm
66 MHz
0.066 GHz
66,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DXL2-80September 1993700 nm
0.7 μm
7.0e-4 mm
80 MHz
0.08 GHz
80,000 kHz
40 MHz
0.04 GHz
40,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Am486DXLV-33June 199333 MHz
0.033 GHz
33,000 kHz
33 MHz
0.033 GHz
33,000 kHz
4,096 MiB
4,194,304 KiB
4,294,967,296 B
4 GiB
0.00391 TiB
Count: 30

References

  1. ↑ Fletcher, Andrew (2013). Profile of the Worldwide Semiconductor Industry - Market Prospects to 1997: Market Prospects to 1997. Elsevier, 96-97. ISBN 9781483284859.
Retrieved from "https://en.wikichip.org/w/index.php?title=amd/am486&oldid=19044"
Facts about "Am486 - AMD"
RDF feed
designerAMD +
first announced1991 +
first launchedApril 1993 +
full page nameamd/am486 +
instance ofmicroprocessor family +
instruction set architectureIA-32 +
main designerAMD +
manufacturerAMD +
nameAMD Am486 +
packagePGA-168 + and QFP-208 +
process700 nm (0.7 μm, 7.0e-4 mm) +, 500 nm (0.5 μm, 5.0e-4 mm) +, 440 nm (0.44 μm, 4.4e-4 mm) + and 350 nm (0.35 μm, 3.5e-4 mm) +
socketSocket 1 +, Socket 2 + and Socket 3 +
technologyCMOS +
word size32 bit (4 octets, 8 nibbles) +