25-10-2017, 01:16 PM
(24-10-2017, 07:24 PM)ppppenguin Wrote: An interesting point about this 6502 emulation is that it interfaces directly to the outside world. Though I wonder how they got around the fact that all logic from back then was 5V while these FPGAs can't tolerate more than 3.3V.
8051 class cores are widely available too. Another simple CPU.
Not that many pins and you can get packs of level converters, e.g. the TI TXB0108, 8-bit bi-directional translator with two Vcc pins - one for 3.3 and one for 5V.
GBP 1.13 ea from Farnell
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