FreeCalypso > hg > fc-small-hw
comparison bb2fc/pcb/bb2fc.pcb @ 28:bd7eec55ebc0
duart28: new design ideas
* added input buffers (LVC with Ioff feature) to prevent high current flow
  from powered-up target into powered-down FT2232D inputs;
* added series resistors on outputs to limit current flow from powered-up
  adapter into powered-down Calypso target;
* buffer IC changed from 74LVC125A to 74LVC541A.
| author | Mychaela Falconia <falcon@freecalypso.org> | 
|---|---|
| date | Sun, 28 Jun 2020 22:06:24 +0000 | 
| parents | 0f9bdd60ce50 | 
| children | 
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| 27:b58388f57c16 | 28:bd7eec55ebc0 | 
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