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STM32L4S5AI Datasheet(PDF) 263 Page - STMicroelectronics

Part # STM32L4S5AI
Description  Ultra-low-power Arm® Cortex®-M4 32-bit MCUFPU, 150DMIPS, up to 2MB Flash, 640KB SRAM, LCD-TFT & MIPI DSI, AESHASH
PDF  275 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L4S5AI Datasheet(HTML) 263 Page - STMicroelectronics

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STM32L4S5xx, STM32L4S7xx and STM32L4S9xx
Package information
272
WLCSP144 device marking
The following figure gives an example of topside marking orientation versus pin 1 identifier
location.
Other optional marking or inset/upset marks, which identify the parts throughout supply
chain operations, are not indicated below.
Figure 76. WLCSP144 marking (package top view)
1. Parts marked as “ES”, “E” or accompanied by an Engineering Sample notification letter, are not yet
qualified and therefore not yet ready to be used in production and any consequences deriving from such
usage will not be at ST charge. In no event, ST will be liable for any customer usage of these engineering
samples in production. ST Quality has to be contacted prior to any decision to use these Engineering
samples to run qualification activity.
Table 124. WLCSP - 144 bump, 5.24x 5.24 mm, 0.40 mm pitch, wafer level chip scale,
recommended PCB design rules
Dimension
Recommended values
Pitch
0.4 mm
Dpad
0.225 mm
Dsm
0.290 mm typ. (depends on the soldermask
registration tolerance)
Stencil opening
0.250 mm
Stencil thickness
0.100 mm
MSv47749V1
Date code
32L4S9ZIY6
Product identification (1)
Aditional information
YWW
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