Si8440/41/42/45

Rev. 1.5

33

9. Land Pattern: 16-Pin Narrow Body SOIC

Figure 19 illustrates the recommended land pattern details for the Si844x in a 16-pin narrow-body SOIC. Table 19

lists the values for the dimensions shown in the illustration.

Figure 19. 16-Pin Narrow Body SOIC PCB Land Pattern

Table 19. 16-Pin Narrow Body SOIC Land Pattern Dimensions

Dimension

Feature

(mm)

C1

Pad Column Spacing

5.40

E

Pad Row Pitch

1.27

X1

Pad Width

0.60

Y1

Pad Length

1.55

Notes:

1. This Land Pattern Design is based on IPC-7351 pattern SOIC127P600X165-16N

for Density Level B (Median Land Protrusion).

2. All feature sizes shown are at Maximum Material Condition (MMC) and a card

fabrication tolerance of 0.05 mm is assumed.