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 '# author: Bdale Garbee'
21 print '# email: bdale@gag.com'
22 print '# dist-license: GPL 2'
23 print '# use-license: unlimited'
25 print 'Element[0x0 "QFN16_6" "" "" 0 0 0 0 0 100 0x0]'
32 mm2mils100(CoreSquare), \
33 mm2mils100(PinSpacing - PinWidth), \
34 mm2mils100(CoreSquare + 0.1), \
37 for pin in range (1,5):
39 mm2mils100(-2.5 + pin * PinSpacing), \
40 mm2mils100(-Overall/2 + PinWidth/2), \
41 mm2mils100(-2.5 + pin * PinSpacing), \
42 mm2mils100(-Overall/2 + PinHeight - PinWidth/2), \
43 mm2mils100(PinWidth), \
44 mm2mils100(PinSpacing - PinWidth), \
45 mm2mils100(PinWidth + 0.1), \
46 '"pin%i"' % (13-pin), '"%i"' % (13-pin), '0x0100]'
49 mm2mils100(-2.5 + pin * PinSpacing), \
50 mm2mils100(+Overall/2 - PinHeight + PinWidth/2), \
51 mm2mils100(-2.5 + pin * PinSpacing), \
52 mm2mils100(+Overall/2 - PinWidth/2), \
53 mm2mils100(PinWidth), \
54 mm2mils100(PinSpacing - PinWidth), \
55 mm2mils100(PinWidth + 0.1), \
56 '"pin%i"' % pin, '"%i"' % pin, '0x0100]'
59 mm2mils100(Overall/2 - PinHeight + PinWidth/2), \
60 mm2mils100(-2.5 + pin * PinSpacing), \
61 mm2mils100(Overall/2 - PinWidth/2), \
62 mm2mils100(-2.5 + pin * PinSpacing), \
63 mm2mils100(PinWidth), \
64 mm2mils100(PinSpacing - PinWidth), \
65 mm2mils100(PinWidth + 0.1), \
66 '"pin%i"' % (9-pin), '"%i"' % (9-pin), '0x0100]'
69 mm2mils100(-Overall/2 + PinWidth/2), \
70 mm2mils100(-2.5 + pin * PinSpacing), \
71 mm2mils100(-Overall/2 + PinHeight - PinWidth/2), \
72 mm2mils100(-2.5 + pin * PinSpacing), \
73 mm2mils100(PinWidth), \
74 mm2mils100(PinSpacing - PinWidth), \
75 mm2mils100(PinWidth + 0.1), \
76 '"pin%i"' % (12+pin), '"%i"' % (12+pin), '0x0100]'
78 print ' ElementArc[',\
81 '500 500 0 360 1000 ]'