STM32F051x4 STM32F051x6 STM32F051x8
Electrical characteristics
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 18. Typical application with a 32.768 kHz crystal
5HVRQDWRUZLWKLQWHJUDWHG
FDSDFLWRUV
&/
26&B,1
I/6(
N+]
UHVRQDWRU
'ULYH
SURJUDPPDEOH
DPSOLILHU
26&B287
&/
Note:
6.3.8
069
An external resistor is not required between OSC32_IN and OSC32_OUT and it is forbidden
to add one.
Internal clock source characteristics
The parameters given in Table 37 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 20: General operating
conditions. The provided curves are characterization results, not tested in production.
DocID022265 Rev 7
63/122
90