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STM32F031X4 Datasheet(PDF) 70 Page - STMicroelectronics

Part # STM32F031X4
Description  ARM-based 32-bit MCU with up to 32 Kbyte Flash, 9 timers, ADC and communication interfaces, 2.0 - 3.6 V
PDF  106 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32F031X4 Datasheet(HTML) 70 Page - STMicroelectronics

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Electrical characteristics
STM32F031x4 STM32F031x6
70/106
DocID025743 Rev 4
Figure 23. Recommended NRST pin protection
1. The external capacitor protects the device against parasitic resets.
2. The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in
Table 49: NRST pin characteristics. Otherwise the reset will not be taken into account by the device.
6.3.16
12-bit ADC characteristics
Unless otherwise specified, the parameters given in Table 50 are derived from tests
performed under the conditions summarized in Table 18: General operating conditions.
Note:
It is recommended to perform a calibration after each power-up.
Table 50. ADC characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA
Analog supply voltage for
ADC ON
-
2.4
-
3.6
V
IDDA (ADC)
Current consumption of
the ADC(1)
VDDA = 3.3 V
-
0.9
-
mA
fADC
ADC clock frequency
-
0.6
-
14
MHz
fS(2)
Sampling rate
12-bit resolution
0.043
-
1
MHz
fTRIG(2)
External trigger frequency
fADC = 14 MHz,
12-bit resolution
--
823
kHz
12-bit resolution
-
-
17
1/fADC
VAIN
Conversion voltage range
-
0
-
VDDA
V
RAIN(2)
External input impedance
See Equation 1 and
Table 51 for details
--
50
k
Ω
RADC(2)
Sampling switch
resistance
--
-
1
k
Ω
CADC(2)
Internal sample and hold
capacitor
--
-
8
pF
tCAL(2)(3)
Calibration time
fADC = 14 MHz
5.9
µs
-83
1/fADC



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