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EM341-RTR Datasheet(PDF) 224 Page - Silicon Laboratories |
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EM341-RTR Datasheet(HTML) 224 Page - Silicon Laboratories |
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224 / 237 page  EM341 Rev 1.0 131 19. Top Marking Figure 19.1 shows the part marking for the EM341 Series. The circle in the top corner indicates Pin 1. Pins are numbered counter-clockwise from Pin 1 with 12 pins per package edge. Figure 19.1. Part Marking for EM341 Table 19.1. 48-Pin QFN Top Marking Explanation Mark Method: Laser Pin 1 Marking: Circle = 0.40 mm Diameter (Top-Left Justified) Line 1 Marking: Logo and Device Part Number Right Justified Silicon Labs logo and EM341. Line 2 Marking: TTTTTT = Mfg Code YY=Year WW-Work Week Manufacturing Code from the Assembly Purchase form. Assigned by the Assembly House. Corre- sponds to the year and work week. Right Justified Line 3 Marking: Circle = 1.3 mm Diameter Center Justified Country of Origin ISO abbreviation Right Justified “e3” indicates Sn solder finish. TW |
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