Package Information 20-pin NSOP (150mil) Outline Dimensions Symbol Dimensions in inch Min. Nom. Max. A 0.228 0.236 0.244 B 0.146 0.154 0.161 C 0.009 — 0.012 C’ 0.382 0.390 0.398 D — — 0.069 E — 0.032 BSC — F 0.002 — 0.009 G 0.020 — 0.031 H 0.008 — 0.010 α 0° — 8° Symbol Dimensions in mm Min. Nom. Max. A 5.80 6.00 6.20 B 3.70 3.90 4.10 C 0.23 — 0.30 C’ 9.70 9.90 10.10 D — — 1.75 E — 0.80 BSC — F 0.05 — 0.23 G 0.50 — 0.80 H 0.21 — 0.25 α 0° — 8° http://www.holtek.com.tw/pdf/guide.pdf December 09, 2015