STM32F401XB Datasheet, PDF (115/135 Pages) STMicroelectronics – ARM Cortex-M4 32b MCU+FPU, 105 DMIPS, 256KB Flash/64KB RAM, 11 TIMs, 1 ADC, 11 comm. interfaces

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STM32F401xB STM32F401xC
Table 79. WLCSP49 - 49-ball, 2.965 x 2.965 mm, 0.4 mm pitch wafer level chip scale
package mechanical data
Symbol
millimeters
Min
Typ
Max
inches⁽¹⁾
Min
Typ
Max
A
A1
A2
A3⁽²⁾
b⁽³⁾
D
E
e
e1
e2
F
G
aaa
bbb
ccc
ddd
eee
0.525
-
-
-
0.220
2.930
2.930
-
-
-
-
-
-
-
-
-
-
0.555
0.175
0.380
0.025
0.250
2.965
2.965
0.400
2.400
2.400
0.2825
0.2825
0.100
0.100
0.100
0.050
0.050
0.585
-
-
-
0.280
3.000
3.000
-
-
-
-
-
-
-
-
-
-
0.0207
-
-
-
0.0087
0.1154
0.1154
-
-
-
-
-
-
-
-
-
-
0.0219
0.0069
0.0150
0.0010
0.0098
0.1167
0.1167
0.0157
0.0945
0.0945
0.0111
0.0111
0.0039
0.0039
0.0039
0.0020
0.0020
0.0230
-
-
-
0.0110
0.1181
0.1181
-
-
-
-
-
-
-
-
-
-
1. Values in inches are converted from mm and rounded to 4 decimal digits.
2. Back side coating.
3. Dimension is measured at the maximum bump diameter parallel to primary datum Z.
Figure 47. WLCSP49 0.4 mm pitch wafer level chip scale recommended footprint
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