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STM32L051T8 Datasheet(PDF) 86 Page - STMicroelectronics

Part # STM32L051T8
Description  Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0, up to 64 KB Flash, 8 KB SRAM, 2 KB EEPROM, ADC
PDF  127 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L051T8 Datasheet(HTML) 86 Page - STMicroelectronics

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Electrical characteristics
STM32L051x6 STM32L051x8
86/127
DocID025938 Rev 6
Figure 27. Recommended NRST pin protection
1. The reset network 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 59. 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 60 are derived from tests
performed under ambient temperature, fPCLK frequency and VDDA supply voltage conditions
summarized in Table 23: General operating conditions.
Note:
It is recommended to perform a calibration after each power-up.
Table 60. 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
IDDA (ADC)
Current consumption of the
ADC on VDDA and 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
RAIN(3)
External input impedance
See Equation 1 and
Table 61 for details
--
50
k
RADC(3)(4)
Sampling switch resistance
-
-
-
1
k



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