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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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 Posted: Tue Feb 17, 2009 2:29 am Post subject: Mostek MK5021CN |
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Picked up a board out of an old calculator today with an Mostek MK5021CN.
There isnt much info around but i found this http://www.datamath.org/Chips/MK5020.htm
what i was wondering is, would it be called a "microcontroller" or isn't it intelligent enuf lol. My electronics is severely lacking so like some help putting this into a group
thx Stu
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Tue Feb 17, 2009 2:36 am Post subject: |
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not so much, its a calculator chip, completely different family.
A microcontoller has to be able to process instructions
An ALU has to be able to add, sub, OR, AND, etc of data.
Calculator ship does none of these.
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donutty
Joined: 16 Feb 2008
Posts: 1122
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| Posted: Tue Feb 17, 2009 1:38 pm Post subject: |
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Unless you consider the 4004 
Calculator chips are usually 'hard coded' to do just that job - they cannot be reprogrammed. |
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chip68
Joined: 19 Oct 2004
Posts: 1024
Location: Central Pennsylvania
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| Posted: Wed Feb 18, 2009 6:43 pm Post subject: |
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Typical calculator chip: (MK5012)
- CMW |
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