Plastic Packages for Integrated Circuits Package Outline Drawing L20.4x4G 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 1/12 4X 2.00 4.00 16X 0.50 A B 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 20 16 1 4.00 15 2 . 50 11 (4X) 5 0.15 6 10 TOP VIEW 0.10 M C A B 20 X 0.30 ± 0.10 4 0.25 BOTTOM VIEW SEE DETAIL "X" 0.10 C 0.9 C C 0 . 2 REF 5 BASE PLANE 0 . 00 MIN. 0 . 05 MAX. SEATING PLANE 0.08 C SIDE VIEW DETAIL "X" NOTES: (3.9 TYP) ( ( 16X 0 . 50 ) 2 . 50 ) 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to ASME Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 5. Tiebar shown (if present) is a non-functional feature. 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 identifier may be 7. JEDEC reference drawing: MO-229. ( 20X 0 . 25 ) ( 20 X 0 . 50 ) either a mold or mark feature. TYPICAL RECOMMENDED LAND PATTERN 1