STM32U073RCT6 datasheet(115/146 Pages) STMICROELECTRONICS

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Symbol

millimeters

inches(1)

Min

Typ

Max

Min

Typ

Max

0.38

0.0150

A3 (if applicable)

0.025

0.0010

b(4)

0.23

0.25

0.28

0.0090

0.0098

0.0110

D(5)

2.82 BSC

0.1110 BSC

D1(5)

2.078 BSC

0.0818 BSC

E(5)

2.93 BSC

0.1153 BSC

E1(5)

2.200 BSC

0.0866 BSC

eD(5)(6)

0.693 BSC

0.0273 BSC

eE(5)(6)

0.400 BSC

0.0157 BSC

eS(5)(6)

0.400 BSC

0.0157 BSC

N(7)

SD(5)(8)

0.346 BSC

0.0136 BSC

SE(5)(8)

0.300 BSC

0.0118 BSC

aaa(9)

0.030

0.0012

bbb(9)

0.060

0.0023

ccc(9)

0.030

0.0012

ddd(9)

0.015

0.0006

eee(9)

0.050

0.0020

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

2. The profile height A is the distance from the seating plane to the highest point on the package. It is measured perpendicular

to the seating plane.

3. A1 is defined as the distance from the seating plane to the lowest point on the package body.

4. Dimension b is measured at the maximum diameter of the terminal (ball) in a plane parallel to Datum C.

5. BSC stands for BASIC dimensions. It corresponds to the nominal value and has no tolerance. For tolerances, refer to form

and position table. On the drawing, these dimensions are framed. For the tolerances, refer to form and position values.

6. e represents the solder balls grid pitch(es).

7. N represents the total number of balls.

8. Basic dimensions SD & SE are defining the ball matrix position with respect to datums A and B.

9. Tolerance of form and position drawing

Figure 37. WLCSP42 - Footprint example

Dpad

Dsm

STM32U073x8/B/C

Package information

DS14548 - Rev 2

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STM32U073RCT6 Datasheet(PDF) 115 Page - STMicroelectronics

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