Plastic Packages for Integrated Circuits Low Plastic Quad Flatpack Package (LQFP) Q144.20x20B D 144 Lead Low Plastic Quad Flatpack Package D1 MILLIMETERS Z PIN 1 CORNER GG 144 109 108 1 U T E1 E SYMBOL MIN NOM MAX A - - 1.60 A1 0.05 - 0.15 A2 1.35 1.40 1.45 b 0.17 0.22 0.27 b1 0.17 0.20 0.23 c 0.09 - 0.20 c1 0.09 - 0.16 D 22 BSC D1 20 BSC E 22 BSC E1 20 BSC L 36 4X 4X 0.2 H T-U Z 0.2 Y T-U Z DETAIL F 140X e 0.08 Y H 0.45 L1 73 0.60 NOTES 4 3 3 0.75 1.00 REF R1 0.08 - - R2 0.08 - 0.20 S 0.20 - - θ 0° 3.5° 7.0° θ1 0° - - θ2 11° 12° 13° θ3 11° 12° 13° N 128 e 0.50 BSC 5 Rev. 1 7/11 e/2 144X b 0.08 M Y T-U Z b/1 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 4. Dimension b does not include dambar protrusion. Allowable dambar protrusion shall not cause the lead width to exceed the maximum b dimension by more than 0.08mm. Dambar cannot be located at the lower radius or the foot. Minimum space between protrusion and an adjacent lead is 0.07mm. b SECTION G-G NOTES: 3. Dimensions D1 and E1 are excluding mold protrusion. Allowable protrusion is 0.25mm per side. Dimensions D1 and E1 are inclusive of mold mismatch and determined by datum plane H. c/1 c PLATING Y SEATING PLANE BASE METAL 5. N is total number of the lead terminals. 0.05 02 01 R1 A A2 R2 03 A1 S L1 DETAIL F 1 L 0.25 GAUGE PLANE