FreeCalypso > hg > fc-small-hw

view bb2fc/schem+bom/primitives @ 28:bd7eec55ebc0

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
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
line wrap: on
line source

capacitor	numpins 2;

/* LDO regulator IC */
pkg_5pin	numpins 5;

/* 74AVC4T774PW single buffer and common part subpackages */
buffer_ic_slot		mapped_pins (A, B, DIR);
buffer_ic_common	mapped_pins (VccA, VccB, GND, OE);

/* connectors */
header_5pin	numpins 5;
conn_28pin	numpins 28;