FreeCalypso > hg > fc-small-hw

annotate lunalcd1/src/primitives @ 28:bd7eec55ebc0

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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 839e9b527e69
children
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1 /* passives */
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2 resistor numpins 2;
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3 capacitor numpins 2;
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4
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5 /* LDO regulator IC */
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6 pkg_5pin numpins 5;
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7
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8 /* connectors */
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9 header_2pin numpins 2;
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10 header_26pin numpins 26;
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11 conn_36pin numpins 36;
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12 conn_36pin_plus2 numpins 38;