LGA Package 141-Lead (15mm × 15mm × 2.82mm) (Reference LTC DWG # 05-08-1815 Rev C) aaa Z 15 BSC X 2.72 – 2.92 Y SEE NOTES DETAIL A 0.12 – 0.28 8 13.97 BSC M L K J H 15 BSC SUBSTRATE F E 1.27 BSC 0.27 – 0.37 PAD 1 CORNER G 13.97 BSC MOLD CAP 2.45 – 2.55 D Z bbb Z DETAIL B 4 C B 5 A aaa Z PADS SEE NOTES PACKAGE TOP VIEW 11 10 9 8 7 6 5 4 3 2 1 PACKAGE BOTTOM VIEW DETAIL B DETAIL C 6.9850 5.7150 4.4450 3.1750 1.9050 0.6350 0.0000 0.6350 1.9050 3.1750 4.4450 5.7150 eee S X Y 6.9850 12 3 0.630 ±0.025 SQ. 141x 6.9850 5.7150 DETAIL A 4.4450 DETAIL C NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994 3.1750 2. ALL DIMENSIONS ARE IN MILLIMETERS 1.9050 0.6350 0.0000 0.6350 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 1.9050 5 3.1750 4.4450 PAD #1 IDENTIFIER ON THE PACKAGE BOTTOM, CAN BE SHIPPED WITH OR WITHOUT A TRIANGLE MARKER. LTMXXXXXX µModule COMPONENT PIN “A1” 6. PRIMARY DATUM -Z- IS SEATING PLANE 5.7150 7. THE TOTAL NUMBER OF PADS: 141 6.9850 8 SUGGESTED PCB LAYOUT TOP VIEW ! PACKAGE ROW AND COLUMN LABELING MAY VARY AMONG µModule PRODUCTS. REVIEW EACH PACKAGE LAYOUT CAREFULLY SYMBOL TOLERANCE aaa 0.15 bbb 0.10 eee 0.05 TRAY PIN 1 BEVEL PACKAGE IN TRAY LOADING ORIENTATION LGA 141 1212 REV C PAD 1