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Notes
A small error has been noted by Steve Osborne, two pullup resistors for the SD Card adaptor are incorrect. As pointed out by Randy McLaughlin it can be easly corrcted as shown here.
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This Board is a completely self contained S100 Bus Master as defined by the IEEE-696 Specs. It can therefore be run outside the S100 bus if you simply provide power to it. There are two pins P31 for ground and P30 for 8-10V input to do this. Please use the upmost care in doing this. Make sure the board is sitting on an insulated background (glass/wood etc.). Of course you will want to configure the IOBYTE to the USB port or VGA and PS2 keyboard.
There appears to be a few variations of the 74LVC245 20 pin DIP level Shifters chips with "A", "AN" etc after the 245. As best I can tell so long as they are 20 pin DIPs they are all OK. I use Mouser chips # 595-SN74LVC245AN.
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This page was last modified on 12/05/2019