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 -Оё 0В° 3.5В° 7.0В° Оё1 0В° -Оё2 11В° 12В° 13В° Оё3 11В° 12В° 13В° 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 …
