LGA Package 144-Lead (15mm × 15mm × 2.82mm) (Reference LTC DWG # 05-08-1816 Rev C) 12 A aaa Z 11 10 9 SEE NOTES DETAIL A 3x, C (0.22 x45°) 8 7 6 5 4 3 2 7 1 M L b K J H MOLD CAP SUBSTRATE G F D E Z bbb Z F H1 H2 D DETAIL B C B e 0.630 ±0.025 SQ. 143x PIN “A1” CORNER A eee S X Y 4 X aaa Z DETAIL B PACKAGE SIDE VIEW PACKAGE BOTTOM VIEW 2. ALL DIMENSIONS ARE IN MILLIMETERS 6.9850 5.7150 4.4450 3.1750 G 3 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 DETAIL A 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 6.9850 PACKAGE TOP VIEW DIA 0.630 PAD 1 e b SEE NOTES Y E 6.9850 5.7150 4.4450 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 DIMENSIONS SYMBOL A b D E e F G H1 H2 aaa bbb eee MIN 2.72 0.60 0.27 2.45 NOM 2.82 0.63 15.00 15.00 1.27 13.97 13.97 0.32 2.50 MAX 2.92 0.66 3 BALL DESIGNATION PER JESD MS-028 AND JEP95 4 DETAILS OF PIN #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE PIN #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE NOTES 5. PRIMARY DATUM -Z- IS SEATING PLANE 6. THE TOTAL NUMBER OF PADS: 144 7 ! PACKAGE ROW AND COLUMN LABELING MAY VARY AMONG µModule PRODUCTS. REVIEW EACH PACKAGE LAYOUT CAREFULLY 0.37 2.55 0.15 0.10 0.05 TOTAL NUMBER OF LGA PADS: 144 LTMXXXXXX µModule 6.9850 COMPONENT PIN “A1” SUGGESTED PCB LAYOUT TOP VIEW TRAY PIN 1 BEVEL PACKAGE IN TRAY LOADING ORIENTATION LGA 144 1112 REV C