Plastic Packages for Integrated Circuits Package Outline Drawing L28.5x5B 28 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 1, 10/07 4X 3.0 5.00 24X 0.50 A B 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 28 22 1 5.00 21 3 .25 ± 0 . 10 15 (4X) 7 0.15 8 14 TOP VIEW 0.10 M C A B 28X 0.55 ± 0.05 4 28X 0.25 ± 0.05 BOTTOM VIEW SEE DETAIL "X" 0.10 C 0 . 75 ± 0.05 C BASE PLANE SEATING PLANE 0.08 C ( 4. 65 TYP ) ( 24X 0 . 50) ( SIDE VIEW 3. 25) (28X 0 . 25 ) C 0 . 2 REF 5 0 . 00 MIN. 0 . 05 MAX. ( 28X 0 . 75) 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