C8051F411EK Silicon Laboratories Inc, C8051F411EK Datasheet - Page 49
C8051F411EK
Manufacturer Part Number
C8051F411EK
Description
KIT EVAL FOR C8051F411
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F411EK
Contents
Evaluation Board, CD-ROM, USB Cable, Batteries and User Guide
Processor To Be Evaluated
C8051F41x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F411
Silicon Family Name
C8051F41x
Kit Contents
LCD Based Evaluation Board, USB Cable, Software CD And Quick-Start Guide
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051F41x
For Use With
336-1315 - KIT REF DESIGN VOICE RECORD F41X
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1317
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Notes:
General
Solder Mask Design
Stencil Design
Card Assembly
Dimension
1. All dimensions shown are in millimeters (mm) unless otherwise noted.
2. Dimensioning and Tolerancing is per the ANSI Y14.5M-1994 specification.
3. This Land Pattern Design is based on the IPC-7351 guidelines.
4. All metal pads are to be non-solder mask defined (NSMD). Clearance between the solder
5. A stainless steel, laser-cut and electro-polished stencil with trapezoidal walls should be used
6. The stencil thickness should be 0.125mm (5 mils).
7. The ratio of stencil aperture to land pad size should be 1:1 for all perimeter pins.
8. A 3x3 array of 0.90mm openings on a 1.1mm pitch should be used for the center pad to
9. A No-Clean, Type-3 solder paste is recommended.
10. The recommended card reflow profile is per the JEDEC/IPC J-STD-020C specification for
C1
C2
X1
E
mask and the metal pad is to be 60 m minimum, all the way around the pad.
to assure good solder paste release.
assure the proper paste volume (67% Paste Coverage).
Small Body Components.
Figure 4.6. QFN-28 Recommended PCB Land Pattern
Table 4.5. QFN-28 PCB Land Pattern Dimensions
0.20
Min
4.80
4.80
0.50
Max
0.30
Rev. 1.1
Dimension
X2
Y1
Y2
C8051F410/1/2/3
3.20
0.85
3.20
Min
Max
3.30
0.95
3.30
49
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