Datasheet

Table Of Contents
Package information STM32WLE5J8/JB/JC
128/135 DS13105 Rev 4
6 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at www.st.com. ECOPACK
is an ST trademark.
6.1 UFBGA73 package information
Figure 26. UFBGA - 73 balls, 5 × 5 mm, ultra thin fine pitch ball grid array
package outline
1. Drawing is not to scale.
2. - 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.
A4 A2
C
SEATING PLANE
A1
A
ddd
C
B08E_UFBGA73_ME_V1
E
E1
e
F
F
DD1
e
B
J
H
G
F
E
D
C
1
B
23456789
A1 INDEX CORNER AREA
b (73 BALLS)
eee
f f f
M
M
C
C
A
B
BOTTOM VIEW
SIDE VIEW
A
A