SEMICONDUCTOR KRA221M MARKING SPECIFICATION TO-92M PACKAGE 1. Marking method Laser Marking 2. Marking A221 1 M 2 No. Item 816 Marking 3 Description A221 Device Name KRA221M M Lot No. 1998. 6. 23 Revision No : 0 8 Year 0~9 : 1900~1999 16 Week 16 : 16th Week 816 1/1