參數資料
型號: TOOLSTICK300DC
廠商: Silicon Laboratories Inc
文件頁數: 104/178頁
文件大?。?/td> 0K
描述: TOOLSTICK DAUGHTER CARD
標準包裝: 1
系列: ToolStick
類型: MCU
適用于相關產品: C8051F300
所含物品: 子卡
Rev. 2.9
31
C8051F300/1/2/3/4/5
.
Figure 4.4. Typical QFN-11 Landing Diagram
Table 4.3. QFN-11 Landing Diagram Dimensions
Dimension
MIN
MAX
C1
2.75
2.85
C2
2.75
2.85
E
0.50 BSC
X1
0.20
0.30
X2
1.40
1.50
Y1
0.65
0.75
Y2
2.30
2.40
Notes: General
1. All dimensions shown are in millimeters (mm) unless otherwise noted.
2. This land pattern design is based on the IPC-7351 guidelines.
Notes: Solder Mask Design
1. All metal pads are to be non-solder mask defined (NSMD). Clearance between the solder
mask and the metal pad is to be 60 m minimum, all the way around the pad.
Notes: Stencil Design
1. A stainless steel, laser-cut and electro-polished stencil with trapezoidal walls should be used to
assure good solder paste release.
2. The stencil thickness should be 0.125 mm (5 mils).
3. The ratio of stencil aperture to land pad size should be 1:1 for all perimeter pads.
4. A 3 x 1 array of 1.30 x 0.60 mm openings on 0.80 mm pitch should be used for the center
ground pad.
Notes: Card Assembly
1. A No-Clean, Type-3 solder paste is recommended.
2. The recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for
Small Body Components.
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