Datasheet

Si5351A/B/C-B
38 Rev. 1.0
14. Top Marking
14.1. 20-Pin QFN Top Marking
Figure 28. 20-Pin QFN Top Marking
14.2. Top Marking Explanation
Mark Method: Laser
Pin 1 Mark: Filled Circle = 0.50 mm Diameter
(Bottom-Left Corner)
Font Size: 0.60 mm (24 mils)
Line 1 Mark Format Device Part Number Si5351
Line 2 Mark Format: TTTTTT = Mfg Code* Manufacturing Code from the Assembly Purchase
Order Form.
Line 3 Mark Format: YY = Year
WW = Work Week
Assigned by the Assembly House. Corresponds to
the year and work week of the assembly date.
*Note: The code shown in the “TTTTTT” line does not correspond to the orderable part number or frequency plan. It is used
for package assembly quality tracking purposes only.