Editing amd/k6-2

{{amd title|K6-2}}
{{ic family
| title             = AMD K6-2
| image             = AMD K6-2 logo.svg
| caption           = Marketing Logo
| developer         = AMD
| manufacturer      = AMD
| type              = Microprocessors
| first announced   = May 28, 1998
| first launched    = June, 1998
| production start  = 1998
| production end    = 
| arch              = Pentium II-compatible superscalar microprocessors with MMX and 3DNow!
| isa               = IA-32
| microarch         = K6-2
| word              = 32 bit
| proc              = 250 nm
| proc 2            = 
| tech              = CMOS
| clock min         = 233 MHz
| clock max         = 550 MHz
| package           = CPGA-321
| package 2         = CBGA-360
| socket            = Socket 7
| socket 2          = Super Socket 7
| socket 3          = BGA-360

| succession       = Yes
| predecessor      = K6
| predecessor link = amd/k6
| successor        = K6-III
| successor link   = amd/k6-iii
}}
'''K6-2''' was a family of {{arch|32}} [[x86]] microprocessors introduced by [[AMD]] in mid [[1998]] as a successor to the {{amd|K6}} family. These processors introduced a number of enhancements including support for [[Super Socket 7]] with bus speeds of up to 100 MHz and {{x86|3DNow!}} [[SIMD]] extension. Due to its ability to extend the life of [[Socket 7]]-based systems and being relatively cheap, the K6-2 family of processors became a highly successful series with some models continued to be manufactured well past {{amd|K6-III}} and {{amd|K7}} introduction.

== Overview ==
[[File:AMD-K6-2 300AFR processor.JPG|left|150px|link=amd/k6-2/k6-2-300afr]]
Following [[AMD]]'s acquisition of [[NexGen]] in [[1995]] and the success from the release of {{amd|K6}} (a rebranding of NegGen's {{nexgen|Nx686}}), AMD had the financial means of developing the [[microarchitecture]] further. With the '''K6-2''' family, AMD took the much safer and more straightforward approach  approach and improved on K6 by adding a number new features as well as improving its overall performance, instead of a complete redesign.

AMD increased and improved much of the {{amd|microarchitecures/k6|K6 microarchitecure}} by adding a number of additional units boosting the overall performance. The K6-2 was AMD's first series of processors to offer {{x86|3DNow!}}, an [[x86]] extension that offered [[floating point]] SIMD instructions. The addition of {{x86|3DNow!}} gave floating point calculations a serious performance boost and a much necessery boost since [[Intel]] usually dominated the area of fast [[x87]] applications. Despite being the first to introduce a series of [[SIMD]] instructions, 3DNow! never gained as much popularity as {{x86|SEE}} did, a later implementation by [[Intel]].

=== Super 7 ===
{{main|Super 7}}
AMD previously used [[Socket 7]] for their {{amd|K6}} chips which was the last socket specification AMD retained rights to. Intel ditched that socket in favor of [[Slot 1]] partially in an attempt to lock AMD out of a number of improved features, leaving them with an outdated platform. 

For the K6-2 AMD introduced an enhanced version of Socket 7 called '''[[Super 7]] Socket'''. Super 7 maintained backwards compatibilitiy with the older [[Socket 7]] but added support for a system bus of up to 100 MHz. Additionally support for [[accelerated graphics port|AGP]] was also introduced. 

The risky move by AMD and a number of chipset manufacturers paid off and by 1998 [[Super 7]] proved to be a highly profitable business move.

== Architecture ==
{{main|amd/microarchitectures/k6-2|l1=K6-2 Microarchitecture}}
[[File:AMD K6-2 2.jpg|thumb|right|200px|AMD K6-2 Back side]]
{{empty section}}

== Die Shot ==
{{empty section}}

== Identification ==
{{chip identification
| parts     = 8
| ex 1      = AMD-
| ex 2      = K6-2
| ex 3      = /
| ex 4      = 350
| ex 5      = A
| ex 6      = F
| ex 7      = R
| ex 2 1    = AMD-
| ex 2 2    = K6-2
| ex 2 3    = /
| ex 2 4    = 475
| ex 2 5    = B
| ex 2 6    = H
| ex 2 7    = X
| ex 2 8    = -66
| desc 1    = 
| desc 2    = '''Type'''<br><table><tr><td style="width: 50px;">'''K6-2'''</td><td>K6-2 Processor</td></tr><tr><td>'''K6-2E'''</td><td>K6-2 Embedded Processor</td></tr></table> 
|}
| desc 3    = 
| desc 4    = '''Frequency (MHz)'''
| desc 5    = '''Package Designation'''<br><table><tr><td style="width: 50px;">'''A'''</td><td>CPGA-321</td></tr><tr><td>'''B'''</td><td>CBGA-360</td></tr></table> 
| desc 6    = '''Core Voltage'''<br><table><tr><td style="width: 50px;">'''U'''</td><td>1.5 V ± 0.1 V</td><td>&nbsp;</td><td>'''C'''</td><td>2.0 V ± 0.1 V</td></tr><tr><td>'''T'''</td><td>1.6 V ± 0.1 V</td><td>&nbsp;</td><td>'''D'''</td><td>2.1 V ± 0.1 V</td></tr><tr><td>'''P'''</td><td>1.7 V ± 0.1 V</td><td>&nbsp;</td><td>'''F'''</td><td>2.2 V ± 0.1 V</td></tr><tr><td>'''N'''</td><td>1.8 V ± 0.1 V</td><td>&nbsp;</td><td>'''G'''</td><td>2.3 V ± 0.1 V</td></tr><tr><td>'''M'''</td><td>1.9 V ± 0.1 V</td><td>&nbsp;</td><td>'''H'''</td><td>2.4 V ± 0.1 V</td></tr></table><br>'''I/O Voltage'''<br>Always 3.3675 ± 7%
| desc 7    = '''T<sub>CASE</sub> Range'''<br><table><tr><td style="width: 50px;">'''Q'''</td><td>0 °C – 60 °C</td></tr><tr><td>'''X'''</td><td>0 °C – 65 °C</td></tr><tr><td>'''R'''</td><td>0 °C – 70 °C</td></tr><tr><td>'''K'''</td><td>0 °C – 80 °C</td></tr><tr><td>'''Z'''</td><td>0 °C – 85 °C</td></tr></table>
| desc 8    = '''Bus Speed Variant'''<br><table><tr><td style="width: 50px;">'''-66'''</td><td>66 MHz Bus</td></tr></table>
}}

== Members ==
Three different types of K6-2 models were sold: Desktop PCs, Mobile, and Embedded systems.
=== K6-2 Desktop Models ===

==== Chomper Core ====
<!-- NOTE: 
           This table is generated automatically from the data in the actual articles.
           If a microprocessor is missing from the list, an appropriate article for it needs to be
           created and tagged accordingly.

           Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
-->
<table class="wikitable sortable">
<tr><th colspan="11" style="background:#D6D6FF;">Desktop K6-2 Processors</th></tr>
<tr><th>Model</th><th>Launched</th><th>Process</th><th>Freq</th><th>Mult.</th><th>Bus</th><th>Max Mem</th><th>V<sub>CORE</sub></th><th>Package</th><th>Min T<sub>case</sub></th><th>Max T<sub>case</sub></th></tr>
{{#ask: [[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Desktop]][[core name::Chomper]]
 |?full page name
 |?model number
 |?first launched
 |?process
 |?base frequency#MHz
 |?clock multiplier
 |?bus speed#MHz
 |?max memory#GB
 |?core voltage
 |?package
 |?min case temperature#°C
 |?max case temperature#°C
 |format=template
 |template=proc table 2
 |userparam=12
 |sep=,
 |mainlabel=-
}}
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Desktop]][[core name::Chomper]]}}
</table>

==== Chomper Extended ("CXT") Core ====
<!-- NOTE: 
           This table is generated automatically from the data in the actual articles.
           If a microprocessor is missing from the list, an appropriate article for it needs to be
           created and tagged accordingly.

           Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
-->
<table class="wikitable sortable">
<tr><th colspan="11" style="background:#D6D6FF;">Desktop K6-2 Processors</th></tr>
<tr><th>Model</th><th>Launched</th><th>Process</th><th>Freq</th><th>Mult.</th><th>Bus</th><th>Max Mem</th><th>V<sub>CORE</sub></th><th>Package</th><th>Min T<sub>case</sub></th><th>Max T<sub>case</sub></th></tr>
{{#ask: [[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Desktop]][[core name::Chomper Extended]]
 |?full page name
 |?model number
 |?first launched
 |?process
 |?base frequency#MHz
 |?clock multiplier
 |?bus speed#MHz
 |?max memory#GB
 |?core voltage
 |?package
 |?min case temperature#°C
 |?max case temperature#°C
 |format=template
 |template=proc table 2
 |userparam=12
 |sep=,
 |mainlabel=-
}}
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Desktop]][[core name::Chomper Extended]]}}
</table>

=== K6-2 Mobile Models ===

==== K6-2 Mobile Models ====
<!-- NOTE: 
           This table is generated automatically from the data in the actual articles.
           If a microprocessor is missing from the list, an appropriate article for it needs to be
           created and tagged accordingly.

           Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
-->
<table class="wikitable sortable">
<tr><th colspan="11" style="background:#D6D6FF;">K6-2 Mobile Processors</th></tr>
<tr><th>Model</th><th>Launched</th><th>Process</th><th>Freq</th><th>Mult.</th><th>Bus</th><th>Max Mem</th><th>V<sub>CORE</sub></th><th>Package</th><th>Min T<sub>case</sub></th><th>Max T<sub>case</sub></th></tr>
{{#ask: [[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Mobile]][[microprocessor series::K6-2 Mobile]]
 |?full page name
 |?model number
 |?first launched
 |?process
 |?base frequency#MHz
 |?clock multiplier
 |?bus speed#MHz
 |?max memory#GB
 |?core voltage
 |?package
 |?min case temperature#°C
 |?max case temperature#°C
 |format=template
 |template=proc table 2
 |userparam=12
 |sep=,
 |mainlabel=-
}}
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Mobile]][[microprocessor series::K6-2 Mobile]]}}
</table>

==== K6-2 Mobile P Models ====
<!-- NOTE: 
           This table is generated automatically from the data in the actual articles.
           If a microprocessor is missing from the list, an appropriate article for it needs to be
           created and tagged accordingly.

           Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
-->
<table class="wikitable sortable">
<tr><th colspan="11" style="background:#D6D6FF;">K6-2 Mobile P Processors</th></tr>
<tr><th>Model</th><th>Launched</th><th>Process</th><th>Freq</th><th>Mult.</th><th>Bus</th><th>Max Mem</th><th>V<sub>CORE</sub></th><th>Package</th><th>Min T<sub>case</sub></th><th>Max T<sub>case</sub></th></tr>
{{#ask: [[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Mobile]][[microprocessor series::K6-2 Mobile P]]
 |?full page name
 |?model number
 |?first launched
 |?process
 |?base frequency#MHz
 |?clock multiplier
 |?bus speed#MHz
 |?max memory#GB
 |?core voltage
 |?package
 |?min case temperature#°C
 |?max case temperature#°C
 |format=template
 |template=proc table 2
 |userparam=12
 |sep=,
 |mainlabel=-
}}
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Mobile]][[microprocessor series::K6-2 Mobile P]]}}
</table>

=== K6-2 Embedded Models ===
'''K6-2E''' were manufactured by AMD's Embedded design group and usually came with a different set of warranties. Note that while AMD used "K6-2E" in their part numbers, the actual chips did not feature the "E" making some of them indistinguishable from the desktop parts.
<!-- NOTE: 
           This table is generated automatically from the data in the actual articles.
           If a microprocessor is missing from the list, an appropriate article for it needs to be
           created and tagged accordingly.

           Missing a chip? please dump its name here: http://en.wikichip.org/wiki/WikiChip:wanted_chips
-->
<table class="wikitable sortable">
<tr><th colspan="11" style="background:#D6D6FF;">K6-2 Embedded Processors</th></tr>
<tr><th>Model</th><th>Launched</th><th>Process</th><th>Freq</th><th>Mult.</th><th>Bus</th><th>Max Mem</th><th>V<sub>CORE</sub></th><th>Package</th><th>Min T<sub>case</sub></th><th>Max T<sub>case</sub></th></tr>
{{#ask: [[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Embedded]]
 |?full page name
 |?model number
 |?first launched
 |?process
 |?base frequency#MHz
 |?clock multiplier
 |?bus speed#MHz
 |?max memory#GB
 |?core voltage
 |?package
 |?min case temperature#°C
 |?max case temperature#°C
 |format=template
 |template=proc table 2
 |userparam=12
 |sep=,
 |mainlabel=-
}}
{{table count|col=11|ask=[[Category:microprocessor models by amd]][[instance of::microprocessor]][[microprocessor family::K6-2]][[market segment::Embedded]]}}
</table>

== Documents ==

=== DataSheet ===
* [[:File:AMD-K6-2 Processor Data Sheet (February, 2000).pdf|AMD-K6-2 Processor Data Sheet]]; Publication #21850 Revision J/0, February 2000
* [[:File:AMD-K6-2E Processor Data Sheet (January, 2000).pdf|AMD-K6-2E Processor Data Sheet]]; Publication #22529 Revision B/0, January 2000
* [[:File:Mobile AMD-K6-2 Processor Data Sheet (May, 2000).pdf|Mobile AMD-K6-2 Processor Data Sheet]]; Publication #21896 Revision E/0, May 2000

=== Other ===
* [[:File:AMD-K6-2 Processor Revision Guide - Model 8 (June, 1999).pdf|AMD-K6-2 Processor Revision Guide - Model 8]]; Publication #21641 Revision F/0, June 1999

== See also ==
* AMD {{amd|K6}}
* Centaur {{centtech|WinChip}}
* Intel {{intel|Pentium II}}
designer	AMD +
first announced	May 28, 1998 +
first launched	June 1998 +
full page name	amd/k6-2 +
instance of	microprocessor family +
instruction set architecture	IA-32 +
main designer	AMD +
manufacturer	AMD +
microarchitecture	K6-2 +
name	AMD K6-2 +
package	CPGA-321 + and CBGA-360 +
process	250 nm (0.25 μm, 2.5e-4 mm) +
socket	Socket 7 +, Super Socket 7 + and BGA-360 +
technology	CMOS +
word size	32 bit (4 octets, 8 nibbles) +