Datasheet

DS10690 Rev 6 125/144
STM32L071xx Package information
139
7.6 WLCSP49 package information
Figure 51. WLCSP49 - 49-pin, 3.294 x 3.258 mm, 0.4 mm pitch wafer level chip scale
package outline
1. Drawing is not to scale.
Bottom view
Bump side
Side view
Front view
Top view
Wafer back side
A1 ball location
e1
F
G
e
e
e2 E
D
A
A2
Detail A
A1
bbb
Z
Detail A
(rotated 90 )
Seating plane
Note 1
Note 2
Bump
49x
eee
Z
Orientation
reference
A1
(4x)
D
E
A3
A2
b
A038_ME_V1
A1
b
aaa
ccc
ddd
Z
Z
X
Y
Z
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