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tlccomp
Joined: 11 May 2006
Posts: 1212
Location: Southeast Wisconsin, USA
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 Posted: Tue Apr 26, 2011 8:39 pm Post subject: |
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| johnorun wrote: | | tlccomp wrote: |
Here's another version of the Amelco Logo. |
Completely different logo on the bottom one.
Did they use two logos?  |
Sorry, I should have clarified. Bottom logo is Teledyne. Amelco Semiconductor was a division of Teledyne.
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The two most common elements on Earth are oxygen and stupidity. |
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magictom
Joined: 14 May 2009
Posts: 2281
Location: Hawaii
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| Posted: Tue Apr 26, 2011 10:40 pm Post subject: |
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| Yep, the top left IC (D/C 7025) shows the alternate Amelco logo, the other one being a straight "a". |
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w9gb
Joined: 17 May 2016
Posts: 1
Location: Chicago
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| Posted: Tue May 17, 2016 6:13 pm Post subject: |
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MK5170 is from 3870 family.
The 3870 (MK3870) 8-bit microcontroller is a single chip implementation of Fairchild F8 (Mostek 3850). The microcontroller includes up to 4 KB mask-programmable ROM, 64 bytes scratchpad RAM and up to 64 bytes executable RAM. The MCU also integrates 32-bit I/O and programmable timer.
In addition to generic MK3870/xxx-xx markings the 3870 chips also have device order number in the form "MK#####x-xx".
Mostek also produced MK38P70 - development version of the 3870 MCU that supported external EPROM chip. |
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johnorun
Joined: 04 Apr 2008
Posts: 3364
Location: Chicago, IL- US
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| Posted: Tue May 17, 2016 9:38 pm Post subject: |
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| w9gb wrote: | MK5170 is from 3870 family.
The 3870 (MK3870) 8-bit microcontroller is a single chip implementation of Fairchild F8 (Mostek 3850). The microcontroller includes up to 4 KB mask-programmable ROM, 64 bytes scratchpad RAM and up to 64 bytes executable RAM. The MCU also integrates 32-bit I/O and programmable timer.
In addition to generic MK3870/xxx-xx markings the 3870 chips also have device order number in the form "MK#####x-xx".
Mostek also produced MK38P70 - development version of the 3870 MCU that supported external EPROM chip. |
Welcome to the Forum!
You're the only other Chicago member I know of on CPU-WORLD.
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