Package Information 80-pin LQFP (10mm × 10mm) Outline Dimensions Symbol Dimensions in inch Min. Nom. Max. A ― 0.472 BSC ― B ― 0.394 BSC ― C ― 0.472 BSC ― D ― 0.394 BSC ― E ― 0.016 BSC ― F 0.007 0.009 0.011 G 0.053 0.055 0.057 H ― ― 0.063 I 0.002 ― 0.006 J 0.018 0.024 0.030 K 0.004 ― 0.008 α 0° ― 7° Symbol Dimensions in mm Min. Nom. Max. A — 12 BSC — B — 10 BSC — C — 12 BSC — D — 10 BSC — E ― 0.4 BSC ― F 0.13 0.18 0.23 G 1.35 1.4 1.45 1.60 H ― ― I 0.05 — 0.15 J 0.45 0.60 0.75 K 0.09 ― 0.20 α 0° ― 7° http://www.holtek.com.tw/pdf/guide.pdf June 03, 2014