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STM32L552CCT3PTR Datasheet(PDF) 317 Page - STMicroelectronics

Part # STM32L552CCT3PTR
Description  Ultra-low-power Arm® Cortex®-M33 32-bit MCUTrustZone®FPU, 165 DMIPS, up to 512 KB Flash memory, 256 KB SRAM, SMPS
PDF  340 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L552CCT3PTR Datasheet(HTML) 317 Page - STMicroelectronics

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DS12737 Rev 6
317/340
STM32L552xx
Package information
333
6.4
WLCSP81 package information
WLCSP81 is a 81-ball, 4.36 x 4.07 mm, 0.4 mm pitch, wafer level chip scale package.
Figure 85. WLCSP81 outline
1. Drawing is not to scale.
2. Dimension is measured at the maximum bump diameter parallel to primary datum Z.
3. Primary datum Z and seating plane are defined by the spherical crowns of the bump.
4. Bump position designation per JESD 95-1, SPP-010.
Table 156. WLCSP81 mechanical data
Symbol
millimeters
inches(1)
Min
Typ
Max
Min
Typ
Max
A(2)
-
-
0.59
-
-
0.023
A1
-
0.18
-
-
0.007
-
A2
-
0.38
-
-
0.015
-
A3(3)
-
0.025
-
-
0.001
-
b
0.22
0.25
0.28
0.009
0.010
0.011
D
4.33
4.36
4.39
0.170
0.172
0.173
E
4.05
4.07
4.09
0.159
0.160
0.161
B01H_WLCSP81_ME_V1
D
E
A1 BALL LOCATION
e
e
e2
e1
F
G
(4x)
aaa
A
A2
bbb Z
A1
A3
A2
b
Z
eee Z
b(81x)
ccc
ZX Y
ddd
Z
SEATING PLANE
FRONT VIEW
TOP VIEW
BOTTOM VIEW
SIDE VIEW
DETAIL A
DETAIL A
ROTATED 90
BUMP



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