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{43} SBC-85.COM 8085 Single Board Computer, 22-pins I/O, Timer, RS-232, 8KB+ RAM, expansion bus
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Documentation available at SBC-85.COM
I have recently been feeling the need to have a tiny 8085 single board computer so i decided to go ahead and make one. I wanted to make something that can be built easily, cheaply, and still be fairly well equipped with an RS232 serial port and enough RAM and EPROM to be a useful little play toy. The 8155 offers 2kBit RAM plus three I/O ports as well as an internal timer. The 6264 gives us 8KByte of RAM and the two 2732 EPROMs can hold just the right amount of code. A full expansion bus offers all the processor signals plus a latched address and a backplane is in the works as well as some expansion cards. Quite a lot packed into a 100mm x 100mm 2-layer.
The board needs to have three little mods so i am giving away the extra boards i have. The first subscribers that want one... leave a comment below and i will send one to you if you pay the postage. For planning purposes, the padded envelope is 5" x 7" and weighs 1.5 oz (40gm)
1-30-2020 UPDATE I BELIEVE ALL HAVE BEEN SPOKEN FOR
I have recently been feeling the need to have a tiny 8085 single board computer so i decided to go ahead and make one. I wanted to make something that can be built easily, cheaply, and still be fairly well equipped with an RS232 serial port and enough RAM and EPROM to be a useful little play toy. The 8155 offers 2kBit RAM plus three I/O ports as well as an internal timer. The 6264 gives us 8KByte of RAM and the two 2732 EPROMs can hold just the right amount of code. A full expansion bus offers all the processor signals plus a latched address and a backplane is in the works as well as some expansion cards. Quite a lot packed into a 100mm x 100mm 2-layer.
The board needs to have three little mods so i am giving away the extra boards i have. The first subscribers that want one... leave a comment below and i will send one to you if you pay the postage. For planning purposes, the padded envelope is 5" x 7" and weighs 1.5 oz (40gm)
1-30-2020 UPDATE I BELIEVE ALL HAVE BEEN SPOKEN FOR
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