STM32F051X8 查看數據表（PDF） - STMicroelectronics

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STM32F051X8

ARM®-based 32-bit MCU, 16 to 64 KB Flash, 11 timers, ADC, DAC and communication interfaces, 2.0-3.6 V

STMicroelectronics 

Package information

STM32F051x4 STM32F051x6 STM32F051x8

Symbol

Table 65. UFBGA64 package mechanical data (continued)

millimeters

inches(1)

Min

Typ

Max

Min

Typ

A

0.460

0.530

0.600

0.0181

0.0209

b

0.170

0.280

0.330

0.0067

0.0110

D

4.850

5.000

5.150

0.1909

0.1969

D1

3.450

3.500

3.550

0.1358

0.1378

E

4.850

5.000

5.150

0.1909

0.1969

E1

3.450

3.500

3.550

0.1358

0.1378

e

-

0.500

-

-

0.0197

F

0.700

0.750

0.800

0.0276

0.0295

ddd

-

-

0.080

-

-

eee

-

-

0.150

-

-

fff

-

-

0.050

-

-

1. Values in inches are converted from mm and rounded to 4 decimal digits.

Max

0.0236

0.0130

0.2028

0.1398

0.2028

0.1398

-

0.0315

0.0031

0.0059

0.0020

Figure 35. Recommended footprint for UFBGA64 package

'SDG

'VP

$B)3B9

Table 66. UFBGA64 recommended PCB design rules

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

92/122

DocID022265 Rev 7

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