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STM32L073X8 Datasheet(PDF) 102 Page - STMicroelectronics

Part # STM32L073X8
Description  Ultra-low-power 32-bit MCU ARM-based Cortex-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, LCD, USB, ADC, DACs
PDF  139 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L073X8 Datasheet(HTML) 102 Page - STMicroelectronics

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Electrical characteristics
STM32L073xx
102/139
DocID027096 Rev 3
Figure 29. Typical connection diagram using the ADC
1. Refer to Table 64: ADC characteristics for the values of RAIN, RADC and CADC.
2. Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the
pad capacitance (roughly 7 pF). A high Cparasitic value will downgrade conversion accuracy. To remedy
this, fADC should be reduced.
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 30 or Figure 31,
depending on whether VREF+ is connected to VDDA or not. The 10 nF capacitors should be
ceramic (good quality). They should be placed as close as possible to the chip.
Figure 30. Power supply and reference decoupling (VREF+ not connected to VDDA)



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