LGA Package 70-Lead (15mm × 9mm × 4.32mm) (Reference LTC DWG# 05-08-1919 Rev A) aaa Z E Y X SEE NOTES DETAIL A A 7 G SEE NOTES PAD 1 3 A PAD “A1” CORNER B 4 b C D E MOLD CAP D SUBSTRATE F F G H1 H Z // bbb Z H2 J e K DETAIL B L aaa Z DIA (0.630 ±0.025) 70x 7 Ø eee S Z X Y PACKAGE TOP VIEW 6 5 4 3 2 1 PACKAGE BOTTOM VIEW DETAIL B DETAIL A 3.810 2.540 2. ALL DIMENSIONS ARE IN MILLIMETERS 1.270 0.3175 0.3175 1.270 2.540 3.810 0.000 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 5.080 3.810 2.540 1.270 0.000 1.270 2.540 3.810 5.080 6.350 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 DIMENSIONS 6.350 0.630 ±0.025 Ø 70x 3 SYMBOL A b D E e F G H1 H2 aaa bbb eee MIN 4.22 0.60 0.27 3.95 NOM 4.32 0.63 15.00 9.00 1.27 12.70 7.62 0.32 4.00 MAX 4.42 0.66 NOTES 5. PRIMARY DATUM -Z- IS SEATING PLANE 6. THE TOTAL NUMBER OF PADS: 70 7 0.37 4.05 0.15 0.10 0.05 TOTAL NUMBER OF LGA PADS: 70 ! PACKAGE ROW AND COLUMN LABELING MAY VARY AMONG µModule PRODUCTS. REVIEW EACH PACKAGE LAYOUT CAREFULLY LTMXXXXXX µModule COMPONENT PAD “A1” SUGGESTED PCB LAYOUT TOP VIEW TRAY PIN 1 BEVEL PACKAGE IN TRAY LOADING ORIENTATION LGA 70 1212 REV A