16x16=250 NH20-90x80-28
Type TMQ358D Lot No. 4043744 Qty 1000 ROHS Date Aug-06-2014 Q.C. QC ACC NH20-194x33-19
The initials of (probably) the chip designers are included with the label. They are difficult to transcribe with the current die photo.
Label:
CHIPCON CC2500 02.06.2005
mz