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[quote="CPUShack"]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 :)[/quote]
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stamasd
Posted: Thu Apr 28, 2016 3:20 am
Post subject:
Pair for me.
Interesting, these work at 5V as opposed to the 1802's 10V.
Qwerty
Posted: Thu Apr 28, 2016 3:18 am
Post subject:
A pair for me, please. Thanks!
molka
Posted: Thu Apr 28, 2016 2:43 am
Post subject:
a pair for me, please
Vegeta
Posted: Wed Apr 27, 2016 7:07 pm
Post subject:
pair for me if possible
CPUShack
Posted: Wed Apr 27, 2016 6:34 pm
Post subject: CPU Shack: RCA CDP1804ACE Enhanced 1802s
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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