STM32WL33CBVATR datasheet(78/91 Pages) STMICROELECTRONICS

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11. For Tolerance of Form and Position see Table 70.

12. Critical dimensions:

12.1 A

12.2 A1

12.3 D & E

12.4 b & L

12.5 e

12.6 D2 & E2

13. Dimensions “b” and “L” are measured at terminal plating surface.

14. Depending on the method of lead termination at the edge of the package, pull back (L1) maybe present. L

minus L1 to be equal to or greater than 0.3 mm.

15. For Symbols, Recommended Values and Tolerances see the Table below: (ACCORDING TO PACKAGE OR

JEDEC SPEC IF REGISTERED)

Table 71. Symbols, recommended values, and tolerances

Symbol

Definition

Notes

aaa

The bilateral profile tolerance that controls the position

of the plastic body sides. The centers of the profile

zones are defined by the basic dimensions D and E.

bbb

The tolerance that controls the position of the entire

terminal pattern with respect to Datums A and B. The

center of the tolerance zone for each terminal is

defined by the basic dimension “e” as related to

Datums A and B.

ccc

The tolerance located parallel to the seating plane in

which the top surface of the package must be located.

ddd

The tolerance that controls the position of the terminals

to each other. The centers of the profile zones are

defined by basic dimension “e”.

This tolerance is normally compounded

with tolerance zone defined by bbb.

eee

The unilateral tolerance located above the seating

plane where in the bottom surface of all terminals must

be located.

This tolerance is commonly known as

the “coplanarity” of the package

terminals.

fff

The tolerance that controls the position of the exposed

metal heat feature. The center of the tolerance zone

will be the datum’s defined by the centerlines of the

package body.

STM32WL33xx

Package information

DS14221 - Rev 5

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