BGA Package 121-Lead (15.00mm × 15.00mm × 3.42mm) (Reference LTC DWG# 05-08-1923 Rev A) A aaa Z E Y X A2 A1 Z SEE NOTES DETAIL A 7 G SEE NOTES PIN 1 3 ccc Z A PIN “A1” CORNER B 4 b b1 MOLD CAP C D SUBSTRATE F F Z // bbb Z D E H1 H2 G DETAIL B H Øb (121 PLACES) J ddd M Z X Y eee M Z e K L aaa Z 11 PACKAGE TOP VIEW DETAIL B PACKAGE SIDE VIEW DETAIL A 9 8 7 6 5 4 3 2 1 PACKAGE BOTTOM VIEW NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 2. ALL DIMENSIONS ARE IN MILLIMETERS DIMENSIONS 6.350 5.080 3.810 2.540 1.270 0.000 0.3175 0.3175 1.270 2.540 3.810 5.080 6.350 10 6.350 0.635 ±0.025 Ø 121x 5.080 3.810 2.540 1.270 0.000 1.270 2.540 3.810 5.080 6.350 SUGGESTED PCB LAYOUT TOP VIEW SYMBOL A A1 A2 b b1 D E e F G H1 H2 aaa bbb ccc ddd eee MIN 3.22 0.50 2.72 0.60 0.60 0.27 2.45 NOM 3.42 0.60 2.82 0.75 0.63 15.00 15.00 1.27 12.70 12.70 0.32 2.50 MAX 3.62 0.70 2.92 0.90 0.66 0.37 2.55 0.15 0.10 0.20 0.30 0.15 TOTAL NUMBER OF BALLS: 121 NOTES 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 5. PRIMARY DATUM -Z- IS SEATING PLANE 6. SOLDER BALL COMPOSITION CAN BE 96.5% Sn/3.0% Ag/0.5% Cu OR Sn Pb EUTECTIC 7 ! 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 BGA 121 1112 REV A