Si590/591

8

Preliminary Rev. 0.25

5. Si590/Si591 Mark Specification

Figure 3 illustrates the mark specification for the Si590/Si591. Table 11 lists the line information.

Figure 3. Mark Specification

Table 11. Si53x Top Mark Description

Line

Position

Description

1

1–10

“SiLabs”+ Part Family Number, 59x (First 3 characters in part number)

2

1–10

Si590, Si591: Option1 + Option2 + Freq(7) + Temp

Si590/Si591 w/ 8-digit resolution: Option1 + Option2 + ConfigNum(6) + Temp

3

Trace Code

Position 1

Pin 1 orientation mark (dot)

Position 2

Product Revision (D)

Position 3–6

Tiny Trace Code (4 alphanumeric characters per assembly release instructions)

Position 7

Year (least significant year digit), to be assigned by assembly site (ex: 2009 = 9)

Position 8–9

Calendar Work Week number (1–53), to be assigned by assembly site

Position 10

“+” to indicate Pb-Free and RoHS-compliant

SiLabs 123

12

3

4

5

6

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