RCA 1802s available

Ethan Dicks ethan.dicks at gmail.com
Wed Dec 18 02:26:03 CST 2019

On Wed, Dec 18, 2019 at 2:55 AM Al Kossow via cctalk
<cctalk at classiccmp.org> wrote:
> On 12/17/19 9:30 AM, Will Cooke via cctalk wrote:
> > An ad was emailed to me today with an interesting item:  RCA 1802 processors.
> Not a bad price, did you buy any?

Definitely a good buy if you don't need to go faster than 3.2MHz with
+5V Vcc (I have at least one 1802 board with a socketed oscillator so
I can use an NTSC colorburst crystal (3.579545 MHz) on a divide-by-2
to run at 1.7897725 MHz for use with a CDP1861 "Pixie" video chip, or
swap that out for a 5Mhz or 6Mhz crystal for faster operation).  The
CDP1802BC can go up to 5MHz with a 10MHz oscillator on the same board.

> Were they actually RCA-branded parts from the 70's?

Curious to know too but I'd expect a Harris part just because of
general availability.


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