Plastic Packages for Integrated Circuits Package Outline Drawing L28.4x4A 28 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 12/08 4X 2.4 4.00 24X 0.40 A B 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 28 22 1 4.00 21 2 .40 ± 0 . 15 15 (4X) 0.15 8 14 0.10 M C A B 4 28X 0.20 TOP VIEW 28X 0.45 ± 0.10 BOTTOM VIEW SEE DETAIL "X" 0.10 C 0 . 75 ( 3. 75 TYP ) ( 24X 0 . 4 ) ( C BASE PLANE SEATING PLANE 0.08 C 2. 40 ) SIDE VIEW ( 28X 0 . 20 ) C 0 . 2 REF 5 0 . 00 MIN. 0 . 05 MAX. ( 28X 0 . 65) 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 indentifier may be either a mold or mark feature. 1