| Electronics > Projects, Designs, and Technical Stuff |
| Whats the smallest computer you could make? |
| << < (3/6) > >> |
| joeqsmith:
Without peripherals, an FPGA and PROM. |
| eugenenine:
6502, rom, ram and a handful of support components. http://www.sunrise-ev.com/6502.htm |
| RES:
1-bit cpu i.e. Motorola MC14500B DIP16. https://en.wikipedia.org/wiki/1-bit_architecture https://en.wikipedia.org/wiki/Motorola_MC14500B https://m.eet.com/media/1122084/0112esdganssle01.png |
| ChristofferB:
One chip - Motorola 6801/6805. Basically a 6800 with a sprinkle of ram (I think 128 bytes) and a mask rom in the same package. Still not a microcontroller! Still had Von Neumann-architecture. I believe they made them with a piggyback eprom soctet on top for the romantic, too. |
| TomS_:
You could build a minimal Z80 computer with "about 6" chips: * CPU * ROM * RAM * 1-2 glue logic * PIO and/or SIO for some I/O The address space would be very coarsely segmented, but that is a price you pay for minimalism. Add an oscillator, and a few resistors and capacitors here and there as required. |
| Navigation |
| Message Index |
| Next page |
| Previous page |