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STM32L071KB Datasheet(PDF) 121 Page - STMicroelectronics

No. de pieza STM32L071KB
Descripción Electrónicos  Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, ADC
PDF  136 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L071KB Datasheet(HTML) 121 Page - STMicroelectronics

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STM32L071xx
Package information
133
Device marking for WLCSP49
The following figure gives an example of topside marking versus ball A 1 position identifier
location.
Figure 52. WLCSP49 marking example (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 83. WLCSP49 recommended PCB design rules (0.4 mm pitch)
Dimension
Recommended values
Pitch
0.4
Dpad
260 µm max. (circular)
220 µm recommended
Dsm
300 µm min. (for 260 µm diameter pad)
PCB pad design
Non-solder mask defined via underbump allowed.



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