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RE: What is it SC67314CP - SC67118CPDS - SC67508PDS ??? (all MOTOROLA - function/pins?) read inside

I have a board here, which seems to be manufactured by Motorola in 1984/85. ALL components on it have a special numbering i.e. 09M05-48M44-61L03-71K85 ... It might be a modem board, because there is a RX-IN + TX-IN there are optocouplers ... and thers is microprocessor with eprom, ram, i/o devices on it. the eproms are Intel 2716 numbered 09M11 and 69N34-69N35 ... I think its a 8-Bit cpu from motorola 6809/6802/6804 ??? ... may be there is someone in the world, who can tell me which cpu it is or where I can find a cross-reference list to the usual nomenclatur - thanks in advance

info appreciated to snipped-for-privacy@hotmail.com

Reply to
Peter Hofmann
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On Fri, 3 Mar 2006 14:41:55 +0100, "Peter Hofmann" put finger to keyboard and composed:

AFAIK, the "SC" prefix was used by Motorola for special orders. I'd dump the contents of the two EPROMs. You may see a clue in the text strings. For example, if the device is a modem, then I would expect to see AT commands.

Follow the EPROM data and address buses back to the CPU. Do the data buses of the two EPROMs form an 8-bit or 16-bit word? Which CPU pins are associated with the crystal oscillator? Which pins connect to power and ground? Is there a UART on the board? Are there any RS232 receivers/transmitters? Does the board require a +/-12V supply? Is there a telephone jack? A line transformer? A hook relay?

A photo would be helpful.

- Franc Zabkar

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Reply to
Franc Zabkar

SCxxxxx numbered parts from Motorola are proprietary, so you have to get the information from the board's OEM, not ON semiconductor.

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Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

Thanks for the infos. The customer specified product number equates in many cases to a standard chip number (74LS/74ALS/ ... 6809/6805/ ...) and I hope that someone can identify the numbering system and can help with a cross-reference list or can tell me the product/model description or the company name ???

Many thanks peter

"Peter Hofmann" schrieb im Newsbeitrag news:bec6b$4408473b$506d651c$ snipped-for-privacy@news.chello.at...

1984/85.

on

its

in

Reply to
Peter Hofmann

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