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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Wed Apr 27, 2016 6:34 pm Post subject: CPU Shack: RCA CDP1804ACE Enhanced 1802s |
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Here are some nice CDP1804s
The 1804 was an enhanced 1802 with 32 additional instructions, including subroutine call and return from the subroutine instructions (as well as added RAM/ROM and timers)
These were used for a early project by Northern Illinois Gas (NIGAS, now Nicor) to make automatic reporting gas meters (common today, but innovative in the 1980's)
12x RCA CDP1804ACE $6
10x RCA CDP1804ACE (NIGA marked) $6
Or have a pair for $10
Oh yes, and I tested these, they still work fine 
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Vegeta
Joined: 13 Apr 2013
Posts: 7049
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| Posted: Wed Apr 27, 2016 7:07 pm Post subject: |
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pair for me if possible
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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Qwerty
Joined: 20 May 2005
Posts: 3141
Location: Germany
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| Posted: Thu Apr 28, 2016 3:18 am Post subject: |
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| A pair for me, please. Thanks! |
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stamasd
Joined: 05 Jun 2014
Posts: 1311
Location: Connecticut
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| Posted: Thu Apr 28, 2016 3:20 am Post subject: |
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Pair for me.
Interesting, these work at 5V as opposed to the 1802's 10V. |
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