Package Information 52-pin LQFP (14mm×14mm) Outline Dimensions Symbol Dimensions in inch Min. Nom. Max. A 0.622 0.630 0.638 B 0.547 0.551 0.555 C 0.622 0.630 0.638 D 0.547 0.551 0.555 E ― 0.039 BSC ― F 0.015 ― 0.019 G 0.053 0.055 0.057 H — — 0.063 I 0.002 — 0.008 J 0.018 — 0.030 K 0.005 — 0.007 α 0° ― 7° Symbol Dimensions in mm Min. Nom. Max. A 15.80 16.00 16.20 B 13.90 14.00 14.10 C 15.80 16.00 16.20 D 13.90 14.00 14.10 E — 1.00 BSC — F 0.39 — 0.48 G 1.35 1.40 1.45 H — — 1.60 I 0.05 — 0.20 J 0.45 — 0.75 K 0.13 — 0.18 α 0° ― 7° http://www.holtek.com.tw/pdf/guide.pdf October 30, 2013