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STM32L072X8 bảng dữ liệu(PDF) 101 Page - STMicroelectronics

tên linh kiện STM32L072X8
Giải thích chi tiết về linh kiện  Ultra-low-power 32-bit MCU Arm®-based Cortex®-M0, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, USB, ADC, DACs
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DS10689 Rev 5
101/160
STM32L072xx
Electrical characteristics
122
Figure 29. Recommended NRST pin protection
1. The reset network protects the device against parasitic resets.
2. The external capacitor must be placed as close as possible to the device.
3. The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in
Table 63. Otherwise the reset will not be taken into account by the device.
6.3.15
12-bit ADC characteristics
Unless otherwise specified, the parameters given in Table 64 are derived from tests
performed under ambient temperature, fPCLK frequency and VDDA supply voltage conditions
summarized in Table 26: General operating conditions.
Note:
It is recommended to perform a calibration after each power-up.
Table 64. ADC characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VDDA
Analog supply voltage for
ADC ON
Fast channel
1.65
-
3.6
V
Standard channel
1.75(1)
-3.6
VREF+
Positive reference voltage
-
1.65
VDDA
V
VREF-
Negative reference voltage
-
-
0
-
IDDA (ADC)
Current consumption of the
ADC on VDDAand VREF+
1.14 Msps
-
200
-
µA
10 ksps
-
40
-
Current consumption of the
ADC on VDD(2)
1.14 Msps
-
70
-
10 ksps
-
1
-
fADC
ADC clock frequency
Voltage scaling Range 1
0.14
-
16
MHz
Voltage scaling Range 2
0.14
-
8
Voltage scaling Range 3
0.14
-
4
fS(3)
Sampling rate
12-bit resolution
0.01
-
1.14
MHz
fTRIG(3)
External trigger frequency
fADC = 16 MHz,
12-bit resolution
-
-
941
kHz
--
-
17
1/fADC
VAIN
Conversion voltage range
-
0
-
VREF+
V



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