Humm....
i´ve also think about to make a replacement Board but why doing it 1:1?
I mean, just use the an ATMEL AVR 8515, he has 32 I/o-Lines, two
internal Tiemers, 8 Kbytes of Flash, 512 Bytes EEPROM and a few
A/D-Comparators. Must be enough. More problematic (for me) is to find
out how the outputs to the Oscillator-Boards working (analogue ,yes, but
in which Voltage Range).
Two AVR´s, a few electronics and that must be enough to replace the old
Board....
Stef
The Old Crow wrote:
>On Mon, 27 Jan 2003, Tony Allgood wrote:
>
>
>
>>and sell it piece by piece. Or wait for someone cleverer than me to come
>>up with a modern board replacement for the whole memory board.
>>
>>
>
> I have a 50% artworked KLM-367 replacement layout in my PCB CAD, but I
>stopped to consider a dilemma: make the board a direct clone of the
>original KLM-367 and use the 8048/8748 CPU and 5514 RAM, or use something
>like a PIC16F877 and rewrite the patch manager OS in PICcode. I do not
>know how much longer 8748s (EPROM version of the 8048, needed to replace a
>dead 8048-345 mask-ROM CPU from a KLM-367) will be available; already I
>have to resort to NOS or chip-pulls to get a stock of 8748s or 8749s.
>
>Crow
>/∗∗/
>
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