STM32MP151AAA3T datasheet(234/245 Pages) STMICROELECTRONICS

234 / 245 page

Package information

STM32MP151A

234/245

DS12500 Rev 1

Figure 64. LFBGA - 354balls, 16x16 mm, 0.8 mm pitch, low profile fine pitch

ball grid array recommended footprint

1. Dimensions are expressed in millimeters.

15.850

16.000

16.150

0.6240

0.6299

0.6358

14.400

0.5669

0.800

0.0315

0.800

0.0315

ddd

0.100

0.0039

eee(5)

0.150

0.0059

fff(6)

0.080

0.0031

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

2. LFBGA stands for Low profile Fine pitch Ball Grid Array package.

Low profile: 1.20mm < A ≤ 1.70mm / Fine pitch: e < 1.00mm pitch. The total profile height (Dim A) is

measured from the seating plane to the top of the component The maximum total package height is

calculated by the RSS method (Root Sum Square).

A Max = A1 Typ + A2 Typ + A4 Typ + √(A1² + A2² + A4² tolerance values).

3. The terminal A1 corner must be identified on the top surface by using a corner chamfer, ink or metalized

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.

4. Initial ball equal 0.400 mm.

5. 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.

6. 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.

Table 109. LFBGA - 354balls, 16x16 mm, 0.8 mm pitch, low profile fine pitch

ball grid array mechanical data (continued)

Symbol

millimeters

inches(1)

Min

Typ

Max

Min

Typ

Max

B02Z_FP_V1

Dpad

Dsm

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