Datasheet

Electrical characteristics STM32F071x8 STM32F071xB
68/122 DocID025451 Rev 6
Note: For information on selecting the crystal, refer to the application note AN2867 “Oscillator
design guide for ST microcontrollers” available from the ST website www.st.com.
Figure 17. Typical application with a 32.768 kHz crystal
Note: An external resistor is not required between OSC32_IN and OSC32_OUT and it is forbidden
to add one.
6.3.8 Internal clock source characteristics
The parameters given in Table 41 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 24: General operating
conditions. The provided curves are characterization results, not tested in production.
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