STM32F303XB Datasheet, PDF (80/148 Pages) STMicroelectronics – 128 to 256 Kbytes of Flash memory

Electrical characteristics
STM32F303xB STM32F303xC
Figure 18. HSI oscillator accuracy characterization results for soldered parts

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Low-speed internal (LSI) RC oscillator
Table 45. LSI oscillator characteristics⁽¹⁾
Symbol
Parameter
Min
Typ
f_LSI
Frequency
30
t_su(LSI)(2) LSI oscillator startup time
-
I_DD(LSI)(2) LSI oscillator power consumption
-
1. V_DDA = 3.3 V, T_A = –40 to 105 °C unless otherwise specified.
2. Guaranteed by design.
40
-
0.75
069
Max
Unit
50
kHz
85
µs
1.2
µA
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