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Difference between revisions of "fairchild/pps-25"
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{{fairchild title|PPS-25}}
 
{{fairchild title|PPS-25}}
The '''Fairchild PPS-25''' was a [[microprocessor family|family]] of [[4-bit architecture|4-bit]] multi-chip [[microcontrollers]] developed by [[Fairchild]] in 1972. While there is no definitive starting production date available, some older books state that the chip was first produced in first quarter of 1971, ahead of the [[Intel 4004]].<ref>Jack Belzer, Albert G. Holzman, Allen Kent (Jul 1, 1978). Encyclopedia of Computer Science and Technology: Volume 10 - Linear and Matrix Algebra to Microorganisms: Computer-Assisted Identification. [http://books.google.com/books?id=iBsUXrgKBKkC&lpg=PA401&ots=i6F1IL5YAO&pg=PA401 page 401]</ref>  
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{{ic family
{| class="wikitable" style="float: right;"
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| title            = Fairchild PPS-25
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| image            = <!-- Image representation of the IC family, e.g. "MCS-4.jpg"  -->
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| caption          = <!-- description of the image                                  -->
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| developer        = Fairchild Semiconductor
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| manufacturer      = Fairchild Semiconductor
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| type              = microprocessors
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| production start  = 1971
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| arch              = 4-bit
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| word              = 4-bit
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| proc              = <!-- process, e.g. "8 μm"                                      -->
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| tech              = pMOS
 +
| clock            = 400 kHz
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| package          = DIP40
 +
}}
 +
The '''PPS-25''' was a [[microprocessor family|family]] of [[4-bit architecture|4-bit]] multi-chip [[microprocessor]] developed by [[Fairchild]] and released in 1971. While there is no definitive starting production date available, there is evidence pointing to early 1971 (some early books placing it ahead of the {{intel|4004}})<ref>Jack Belzer, Albert G. Holzman, Allen Kent (Jul 1, 1978). Encyclopedia of Computer Science and Technology: Volume 10 - Linear and Matrix Algebra to Microorganisms: Computer-Assisted Identification. [http://books.google.com/books?id=iBsUXrgKBKkC&lpg=PA401&ots=i6F1IL5YAO&pg=PA401 page 401]</ref>. This family was very short-lived as within a few years, Fairchild shifted their effort toward more advanced designs such as the {{fairchild|F8}} and their macrologic families {{fairchild|4700}}/{{fairchild|9400}}.
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{{lost chip|about=the Fairchild PPS-25 family}}
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==Members==
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{| class="wikitable"
 
! colspan="2" | Family Members
 
! colspan="2" | Family Members
 
|-
 
|-

Revision as of 12:16, 24 January 2016

Fairchild PPS-25
no photo (ic).svg
Developer Fairchild Semiconductor
Manufacturer Fairchild Semiconductor
Type microprocessors
Production 1971
Architecture 4-bit
Word size 4-bit
"-bit" is not declared as a valid unit of measurement for this property.
Technology pMOS
Clock 400 kHz
Package DIP40

The PPS-25 was a family of 4-bit multi-chip microprocessor developed by Fairchild and released in 1971. While there is no definitive starting production date available, there is evidence pointing to early 1971 (some early books placing it ahead of the 4004)[1]. This family was very short-lived as within a few years, Fairchild shifted their effort toward more advanced designs such as the F8 and their macrologic families 4700/9400.


Book icon.png Help! This article is about the Fairchild PPS-25 family that has lost in the mists of time. Please help use restore and preserve this info! If you have more information pertaining to this chip please consider editing this page or posting that info on its discussion page (e.g. datasheet, manuals, catalogs, or any other literature on the subject would be help greatly).

Members

Family Members
Part Description
3805 ALU[2]
3806 Control and timing unit

References

  1. Jack Belzer, Albert G. Holzman, Allen Kent (Jul 1, 1978). Encyclopedia of Computer Science and Technology: Volume 10 - Linear and Matrix Algebra to Microorganisms: Computer-Assisted Identification. page 401
  2. Electronic & Power 17 May 1973


Text document with shapes.svg This article is still a stub and needs your attention. You can help improve this article by editing this page and adding the missing information.
Facts about "PPS-25 - Fairchild"
designerFairchild Semiconductor +
full page namefairchild/pps-25 +
instance ofmicroprocessor family +
main designerFairchild Semiconductor +
manufacturerFairchild Semiconductor +
nameFairchild PPS-25 +
packageDIP40 +
technologypMOS +