WP Package 64-Lead QFN Multipad (9mm × 9mm) (Reference LTC DWG # 05-08-1812 Rev C) SEATING PLANE A 9.00 BSC 1.39 0.00 – 0.05 1.19 0.20 REF 49 50 51 52 53 54 3.30 0.50 64 0.30 – 0.50 B 1.92 2.01 PAD 1 CORNER 0.53 (2x) 48 1.17 3.06 3.50 0.87 1 0.30 (2x) 2.98 0.95 bbb M C A B 5 9.00 BSC 1.30 4.10 3.99 2.04 33 16 17 32 aaa C 2x TOP VIEW 0.90 0.10 // ccc C 0.20 – 0.30 NX 0.08 C 1.42 WP64 QFN REV C 0911 3.85 BOTTOM VIEW (BOTTOM METALLIZATION DETAILS) 6 3.30 0.50 1.81 3.30 NX b aaa C 2x 3.60 4.53 1.39 54 1.19 51 54 51 0.30 – 0.50 PIN 1 0.87 3.50 0.53 (2x) 3.06 0.68 × 0.68 (4×) 0.78 × 0.78 (15×) 0.3 × 1.2 (2×) 0.95 3.60 2.04 2.01 0.30 (2x) 2.98 1.81 1.92 1.17 NOTE: 1. DIMENSIONING AND TOLERANCING CONFORM TO ASME Y14.5M-1994 2. ALL DIMENSIONS ARE IN MILLIMETERS, ANGLES ARE IN DEGREES () 3. N IS THE TOTAL NUMBER OF TERMINALS 4. THE LOCATION OF THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION CONFORMS TO JEDEC PUBLICATION 95 SPP-002 5 DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.15mm AND 0.30mm FROM THE TERMINAL TIP. 6 COPLANARITY APPLIES TO THE TERMINALS AND ALL OTHER SURFACE METALLIZATION 4.53 1.30 4.10 2.30 0.85 × 0.85 (8×) 3.30 0.8 × 0.8 (8×) 3.99 SYMBOL TOLERANCE aaa 0.15 bbb 0.10 ccc 0.10 7. PAD LAYOUT AND STENCIL LAYOUT AS GUIDE LINE ONLY. DRAWING NOT TO SCALE 3.85 1.42 0.20 – 0.30 RECOMMENDED SOLDER PAD LAYOUT, NOTE 7 TOP VIEW RECOMMENDED STENCIL DESIGN (SAME DIMENSIONS AS PAD LAYOUT, NOTE 7)