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STM32L431 датащи(PDF) 179 Page - STMicroelectronics

номер детали STM32L431
подробное описание детали  RTC with HW calendar, alarms and calibration
PDF  200 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L431 датащи(HTML) 179 Page - STMicroelectronics

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STM32L431xx
Package information
197
Figure 52. UFBGA64 – 64-ball, 5 x 5 mm, 0.5 mm pitch ultra profile fine pitch ball grid
array
package recommended footprint
Device marking
The following figure gives an example of topside marking orientation versus ball A1 identifier
location.
F
0.700
0.750
0.800
0.0276
0.0295
0.0315
ddd
-
-
0.080
-
-
0.0031
eee
-
-
0.150
-
-
0.0059
fff
-
-
0.050
-
-
0.0020
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Table 93. UFBGA64 – 64-ball, 5 x 5 mm, 0.5 mm pitch ultra profile fine pitch ball grid array
package mechanical data (continued)
Symbol
millimeters
inches(1)
Min
Typ
Max
Min
Typ
Max
A
0.460
0.530
0.600
0.0181
0.0209
0.0236
Table 94. UFBGA64 recommended PCB design rules (0.5 mm pitch BGA)
Dimension
Recommended values
Pitch
0.5
Dpad
0.280 mm
Dsm
0.370 mm typ. (depends on the soldermask
registration tolerance)
Stencil opening
0.280 mm
Stencil thickness
Between 0.100 mm and 0.125 mm
Pad trace width
0.100 mm



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