Hallo,
While looking for info on the SC/MP developing system from National i stumbled on this message from Alisson J Parent.:
On May 30, 12:24, Allison J Parent wrote:
> Subject: Re: National SC/MP data
> <Hi all,
> <Today I bought a SC/MP wirewrapped board. Does anyone know of a site
with
> <data sheet? My search came up with what is known as "SC/MP II",
including
> <description of a "MK14" project in Practical Electronics mag. In
> <particular, the chip on my board requires an unknown neg. voltage on pin
> <40, instead of +5 Volts on the later NMOS versions. The actual part No.
is
> <ISP-8A/500D
Some time ago i found one of these systems. It also included the original datasheets from National. It says that the voltage on pin 40 must be -7Volt.
When you need more info i can send you a scan of the datasheets.
Unfortunately my system doesn't function. So i'm looking for the scematics. Maybe you can help me out?
Greetings,
Danny Van Braband
Belgium
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Received on Wed Dec 01 1999 - 16:48:26 GMT