LGA Package 144-Lead (15mm × 15mm × 4.41mm) (Reference LTC DWG# 05-08-1909 Rev A) aaa Z E X A Y SEE NOTES DETAIL A 3x, C (0.22 x45°) G e 7 b M b L K J H G D MOLD CAP SUBSTRATE E e D Z bbb Z 4 F H1 H2 PAD 1 CORNER F C DETAIL B B A aaa Z PACKAGE TOP VIEW PADS SEE NOTES DIA (0.630) 144x 12 11 10 8 7 6 5 4 3 2 1 DIA 0.630 PAD 1 PACKAGE BOTTOM VIEW 3 eee S X Y 9 DETAIL B 6.9850 5.7150 4.4450 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 6.9850 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 2. ALL DIMENSIONS ARE IN MILLIMETERS 6.9850 DETAIL A 3 LAND DESIGNATION PER JESD MO-222, SPP-010 4 DETAILS OF PAD #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE ZONE INDICATED. THE PAD #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE 5.7150 DIMENSIONS 4.4450 SYMBOL A b D E e F G H1 H2 aaa bbb eee 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 6.9850 MIN 4.31 0.60 0.36 3.95 NOM 4.41 0.63 15.00 15.00 1.27 13.97 13.97 0.41 4.00 MAX 4.51 0.66 5. PRIMARY DATUM -Z- IS SEATING PLANE 6. THE TOTAL NUMBER OF PADS: 144 7 0.46 4.05 0.15 0.10 0.05 TOTAL NUMBER OF LGA PADS: 144 SUGGESTED PCB LAYOUT TOP VIEW NOTES ! PACKAGE ROW AND COLUMN LABELING MAY VARY AMONG µModule PRODUCTS. REVIEW EACH PACKAGE LAYOUT CAREFULLY LTMXXXXXX µModule COMPONENT PIN “A1” TRAY PIN 1 BEVEL PACKAGE IN TRAY LOADING ORIENTATION LGA 144 1112 REV A