EFM32GG940 Datasheet, PDF (59/73 Pages) List of Unclassifed Manufacturers – EFM32GG940 DATASHEET

4.5 QFN64 Package
Figure 4.3. QFN64
...the world's most energy friendly microcontrollers
Note:
1. Dimensioning & tolerancing confirm to ASME Y14.5M-1994.
2. All dimensions are in millimeters. Angles are in degrees.
3. Dimension 'b' applies to metallized terminal and is measured between 0.25 mm and 0.30 mm from
the terminal tip. Dimension L1 represents terminal full back from package edge up to 0.1 mm is
acceptable.
4. Coplanarity applies to the exposed heat slug as well as the terminal.
5. Radius on terminal is optional
Table 4.4. QFN64 (Dimensions in mm)
Symbol
Min
Nom
Max
A A1 A3 b D E D2 E2 e L L1 aaa bbb ccc ddd eee
0.80 0.00
0.20
7.10 7.10
0.40 0.00
0.85
-
0.203
REF
0.25
9.00
BSC
9.00
BSC
7.20
7.20
0.50
BSC
0.45
0.10 0.10 0.10 0.05 0.08
0.90 0.05
0.30
7.30 7.30
0.50 0.10
The QFN64 Package uses Nickel-Palladium-Gold preplated leadframe.
All EFM32 packages are RoHS compliant and free of Bromine (Br) and Antimony (Sb).
For additional Quality and Environmental information, please see:
http://www.silabs.com/support/quality/pages/default.aspx
2014-05-23 - EFM32GG940FXX - d0044_Rev1.30
59
www.silabs.com