2 # Copyright 2007 by Bdale Garbee <bdale@gag.com>. GPLv2
4 # Program to emit PCB footprint for QFN16_6 package used by MMA7260Q
7 # dimensions in mm from DS00049AR.pdf Microchip packaging datasheet
16 # we're going to use the 1/100 of a mil fundamental unit form
18 return int( mm / 25.4 * 1000.0 * 100.0 + 0.5 )
20 print 'Element[0x0 "QFN16_6" "" "" 0 0 0 0 0 100 0x0]'
27 mm2mils100(CoreSquare), \
28 mm2mils100(PinSpacing - PinWidth), \
29 mm2mils100(CoreSquare + 0.1), \
32 for pin in range (1,5):
34 mm2mils100(-2.5 + pin * PinSpacing), \
35 mm2mils100(-Overall/2 + PinWidth/2), \
36 mm2mils100(-2.5 + pin * PinSpacing), \
37 mm2mils100(-Overall/2 + PinHeight - PinWidth/2), \
38 mm2mils100(PinWidth), \
39 mm2mils100(PinSpacing - PinWidth), \
40 mm2mils100(PinWidth + 0.1), \
41 '"pin%i"' % (13-pin), '"%i"' % (13-pin), '0x0100]'
44 mm2mils100(-2.5 + pin * PinSpacing), \
45 mm2mils100(+Overall/2 - PinHeight + PinWidth/2), \
46 mm2mils100(-2.5 + pin * PinSpacing), \
47 mm2mils100(+Overall/2 - PinWidth/2), \
48 mm2mils100(PinWidth), \
49 mm2mils100(PinSpacing - PinWidth), \
50 mm2mils100(PinWidth + 0.1), \
51 '"pin%i"' % pin, '"%i"' % pin, '0x0100]'
54 mm2mils100(Overall/2 - PinHeight + PinWidth/2), \
55 mm2mils100(-2.5 + pin * PinSpacing), \
56 mm2mils100(Overall/2 - PinWidth/2), \
57 mm2mils100(-2.5 + pin * PinSpacing), \
58 mm2mils100(PinWidth), \
59 mm2mils100(PinSpacing - PinWidth), \
60 mm2mils100(PinWidth + 0.1), \
61 '"pin%i"' % (9-pin), '"%i"' % (9-pin), '0x0100]'
64 mm2mils100(-Overall/2 + PinWidth/2), \
65 mm2mils100(-2.5 + pin * PinSpacing), \
66 mm2mils100(-Overall/2 + PinHeight - PinWidth/2), \
67 mm2mils100(-2.5 + pin * PinSpacing), \
68 mm2mils100(PinWidth), \
69 mm2mils100(PinSpacing - PinWidth), \
70 mm2mils100(PinWidth + 0.1), \
71 '"pin%i"' % (12+pin), '"%i"' % (12+pin), '0x0100]'
73 print ' ElementArc[',\
76 '500 500 0 360 1000 ]'