L28.4X4 — 28 Lead Thin Quad Flat No-Lead Plastic Package Plastic Packages for Integrated Circuits Package Outline Drawing L28.4x4 28 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 9/06 4 . 00 A 2 . 50 PIN 1 B PIN #1 INDEX AREA 0 . 40 INDEX AREA ……