Plastic Packages for Integrated Circuits Package Outline Drawing L20.4x4 20 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 4, 6/15 4x 2.0 ±0.05 4.00 ±0.05 A B 16x 0.50 ±0.05 16 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 20 1 15 4.00 ±0.05 2.10 ±0.15 11 5 0.15 (4x) 6 10 TOP VIEW 0.10 M C A B 4 0.25 +0.05/-0.07 20x 0.6 +0.15/-0.25 BOTTOM VIEW SEE DETAIL "X" 0.10 C 0.90 ±0.1 C BASE PLANE (3.6 TYP) SEATING PLANE 0.08 C (20x 0.5) ( 2.10) SIDE VIEW (20x 0.25) C 0.2 REF 5 0.00 MIN. 0.05 MAX. (20x 0.8) TYPICAL RECOMMENDED LAND PATTERN DETAIL "X" NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Unless otherwise specified, tolerance: Decimal ± 0.05 4. Dimension b 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 either a mold or mark feature. 1