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From: irwin@uiucdcs.UUCP
Newsgroups: net.micro
Subject: Re: real cheap micro wanted
Message-ID: <10400153@uiucdcs.UUCP>
Date: Wed, 5-Sep-84 14:14:00 EDT
Article-I.D.: uiucdcs.10400153
Posted: Wed Sep  5 14:14:00 1984
Date-Received: Sun, 16-Sep-84 10:19:13 EDT
References: <12972@sri-arpa.UUCP>
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Nf-ID: #R:sri-arpa:-1297200:uiucdcs:10400153:000:727
Nf-From: uiucdcs!irwin    Sep  5 13:14:00 1984

It sounds like you should look at the RCA 1802. The plastic version
can be purchased for about $2.95. It is cmos, handles up to 64k mem,
can be used as a uart via software control, has internal clock osc,
(you provide the xtal), has I/O port control and also has built in
DMA, (uses R0 to address mem in DMA mode).

I have a home micro built around one that I have been using for years,
do word processing and other things with it. It is an 8 bit machine,
has 16 scratch pad registers which you can assign to stack, pc, or
what ever you wish.

I have found it to be a handy-dandy little CPU (I got into it because
I wanted to put a cmos micro in a model airplane radio control system
and needed cmos to get low battery drain).