Package Information 48-pin TSSOP Outline Dimensions Symbol Dimensions in inch Min. Nom. Max. A — — 0.047 A1 0.002 — 0.006 A2 0.031 0.039 0.041 B 0.007 — 0.011 C 0.004 — 0.008 D 0.488 0.492 0.496 E — 0.319 BSC — E1 0.236 0.240 0.244 e — 0.020 BSC — L 0.018 0.024 0.030 L1 — 0.039 BSC — y — 0.004 — θ 0° ― 8° Symbol Dimensions in mm Min. Nom. Max. A — — 1.20 A1 0.05 — 0.15 A2 0.80 1 1.05 B 0.17 — 0.27 C 0.09 — 0.20 D 12.40 12.50 12.60 E — 8.10 BSC — E1 6.00 6.10 6.20 e — 0.50 BSC — L 0.45 0.60 0.75 L1 — 1.0 REF — y — 0.10 — θ 0° ― 8° http://www.holtek.com.tw/pdf/guide.pdf October 16, 2013