C8051F52x-53x
Figure 4.2. QFN-20 Package Diagram
Table 4.5. QFN-20 Package Diagram Dimensions
Dimension
Min
Nom
Max
A
A1
A3
b
0.80
0.03
0.90
0.07
1.00
0.11
0.25 REF
0.25
0.18
2.55
0.30
2.85
D
4.00 BSC.
2.70
D2
e
0.50 BSC.
4.00 BSC.
2.70
E
E2
L
2.55
0.30
--
2.85
0.50
0.15
0.10
0.05
0.08
0.40
aaa
bbb
ddd
eee
--
--
--
--
--
--
--
Notes:
1. All dimensions shown are in millimeters (mm) unless otherwise noted.
2. Dimensioning and Tolerancing per ANSI Y14.5M-1994.
3. This drawing conforms to JEDEC outline MO-43, variation VGGD except for
custom features D2, E2, and L which are toleranced per supplier designation.
4. Recommended card reflow profile is per the JEDEC/IPC J-STD-020C
specification for Small Body Components.
38
Rev. 0.3