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STM32F051K4U6 Datasheet(PDF) 61 Page - STMicroelectronics

No. de pieza STM32F051K4U6
Descripción Electrónicos  Low- and medium-density advanced ARM??based 32-bit MCU with 16 to 64 Kbytes Flash, timers, ADC, DAC and comm. interfaces
PDF  104 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F051K4U6 Datasheet(HTML) 61 Page - STMicroelectronics

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Electrical characteristics
STM32F051x
62/105
Doc ID 022265 Rev 3
Figure 15.
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.
6.3.7
Internal clock source characteristics
The parameters given in Table 38 are derived from tests performed under ambient
temperature and supply voltage conditions summarized in Table 20.
High-speed internal (HSI) RC oscillator
Table 38.
HSI oscillator characteristics(1)
1.
VDDA = 3.3 V, TA = –40 to 105 °C unless otherwise specified.
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
fHSI
Frequency
-
8
MHz
TRIM
HSI user trimming step
-
-
1(2)
2.
Guaranteed by design, not tested in production.
%
DuCy(HSI)
Duty cycle
45(2)
-55(2)
%
ACCHSI
Accuracy of the HSI
oscillator (factory
calibrated)
TA = –40 to 105 °C
–3.8(3)
3.
Data based on characterization results, not tested in production.
-4.6(3)
%
TA = –10 to 85 °C
–2.9(3)
-2.9(3)
%
TA = 0 to 70 °C
–1.3(3)
-2.2(3)
%
TA = 25 °C
–1
-
1
%
tsu(HSI)
HSI oscillator startup
time
1(2)
-2(2)
µs
IDD(HSI)
HSI oscillator power
consumption
-
80
100(2)
µA



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