STM32F427AI datasheet(222/240 Pages) STMICROELECTRONICS

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Package information

STM32F427xx STM32F429xx

222/240

DS9405 Rev 12

Table 121. TFBGA216 - Mechanical data

Symbol

millimeters

inches(1)

Min

Typ

Max

Min

Typ

Max

1.200

0.0472

A1(2)

0.150

0.0059

0.760

0.0299

b(3)

0.350

0.400

0.450

0.0138

0.0157

0.0177

12.850

13.000

13.150

0.5059

0.5118

0.5177

11.200

0.4409

12.850

13.000

13.150

0.5059

0.5118

0.5177

11.200

0.4409

0.800

0.0315

0.900

0.0354

0.900

0.0354

ddd

0.100

0.0039

eee(4)

0.150

0.0059

fff(5)

0.080

0.0031

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

2. • The terminal A1 corner must be identified on the top surface by using a corner chamfer, ink or metallized

markings, or other feature of package body or integral heat slug.

• A distinguishing feature is allowable on the bottom surface of the package to identify the terminal A1

corner. Exact shape of each corner is optional.

3. Initial ball equal 0.350 mm.

4. The tolerance of position that controls the location of the pattern of balls with respect to datums A and B.

For each ball there is a cylindrical tolerance zone eee perpendicular to datum C and located on true

position with respect to datums A and B as defined by e. The axis perpendicular to datum C of each ball

must lie within this tolerance zone.

5. The tolerance of position that controls the location of the balls within the matrix with respect to each other.

For each ball there is a cylindrical tolerance zone fff perpendicular to datum C and located on true position

as defined by e. The axis perpendicular to datum C of each ball must lie within this tolerance zone. Each

tolerance zone fff in the array is contained entirely in the respective zone eee above The axis of each ball

must lie simultaneously in both tolerance zones.

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