Electronica - 68000 pinout in PQFP?

Factual Questions
1

Hi all,

I’m hoping that the random brains on here can help. I have an arcade PCB which uses a ‘slightly’ custom[1] motorola 68000 CPU. It’s packaged in a 64 pin plastic quad flat package format. I believe that Motorola or Freescale produced a 68k in this form factor but I can’t find a datasheet detailing the pinout.

I’ve tried the usual datasheet places. Anybody got a datasheet mother lode that I may not have found?

I’ve started deriving a partial pinout following the traces through some buffers to EPROM sockets. Will post them once verified.

thanks,
Tim

[1] The board is a Data East Dark Seal and the CPU is rebadged as a DECO part. Nothing I’ve seen indicates this is a respin - just a relabel.

2

Here you go: http://www.dia.eui.upm.es/asignatu/arq_com/68000umad.pdf

“FU” suffix

3

Thank you, thank you, thank you! Out of interest what search term did you use?

tim

4

Here you go:

http://cn.ic-on-line.cn/IOL/viewpdf/MC68EC000FN10_786794.htm

ETA: Damn, late to the party.

5

Me, I searched for “MC68000 64-pin QFP” without the quotes.

6

Also, Motorola Semiconductor is now called Freescale Semiconductor. It was on their own website the whole time!

http://www.freescale.com/files/32bit/doc/ref_manual/M68000UMAD.pdf

7

Thank you both very much. I’m going to plead temporary insanity :). I’d been searching whilst hooking up my logic analyser and somewhere around the 30th channel I think I lost my mind.

tim

8

I first determined that the correct suffix was “FU”, and then searched for “68000 FU” the link was on the 2nd or 3rd page.
Actually, I first searched my library, but I must have finally tossed my 68000 books…