Indicates the Work Week assembled.Р Q= 17 Q= 43 ”XX“– Two characters that indicateР the Wafer Lot Tracking Code.Р R=18 R=44Р 20 ld MFP/SOEIAJ = “YWWXX”Р S=19 S=45Р Device MarkingР T=20 T=46Р MC74HC374AР U= 21 U= 47 818ETР V= 22 V= 48 Marking DecodedР W= 23 W= 49 MC74HC374A = MC74HC374AFР X= 24 X= 50 818ET = YWWXXР Y= 25 Y= 51 |||||Р Z=26 Z=52 8|||| = 1998Р ||||РFrom this information, you can determine the date codes.Р 18|| = WW18РExample:Р ||РXBSTР ET = Serialized lot count for thatР|||| Work WeekРX||| = ASE Chung–Li, Taiwan ”Y“– Indicates the last digit of the YearР Assy Location assembled.Р ||| ”WW“– Indicates the Work Week assembled.Р B|| = Second Lot Assembled for that ”XX“– Two characters that indicate theР Device Type in that Alpha Code the Wafer Lot Tracking Code.Р (Work Week)Р Р 10
全文预览
