STM32L083X8 Datasheet, PDF (65/139 Pages) STMicroelectronics – Ultra-low-power 32-bit MCU ARM-based Cortex-M0+, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, LCD, USB, ADC, DACs, AES

STM32L083xx
Electrical characteristics
Table 27. Embedded reset and power control block characteristics (continued)
Symbol
Parameter
Conditions
Min Typ Max Unit
V_PVD6
PVD threshold 6
V_hyst
Hysteresis voltage
Falling edge
Rising edge
2.97 3.05 3.09
V
3.08 3.15 3.20
BOR0 threshold
-
40 -
All BOR and PVD thresholds
excepting BOR0
-
100 -
mV
1. Guaranteed by characterization results.
2. Valid for device version without BOR at power up. Please see option "D" in Ordering information scheme for more details.
6.3.3
Embedded internal reference voltage
The parameters given in Table 29 are based on characterization results, unless otherwise
specified.
Table 28. Embedded internal reference voltage calibration values
Calibration value name
Description
Memory address
VREFINT_CAL
Raw data acquired at
temperature of 25 °C
V_DDA= 3 V
0x1FF8 0078 - 0x1FF8 0079
Symbol
V_REFINT
(2)
out
T_VREFINT
V_{VREF_MEAS}
A_{VREF_MEAS}
T_Coeff(4)
A_Coeff(4)
V_DDCoeff(4)
T_{S_vrefint(4)(5)}
T_{ADC_BUF(4)}
I_{BUF_ADC(4)}
I_{VREF_OUT(4)}
C_{VREF_OUT(4)}
Table 29. Embedded internal reference voltage⁽¹⁾
Parameter
Conditions
Min Typ
Internal reference voltage
– 40 °C < T_J < +125 °C 1.202
Internal reference startup time
-
-
V_DDA and V_REF+ voltage during
V_REFINT factory measure
Accuracy of factory-measured
V_REFINT value⁽³⁾
Temperature coefficient
Long-term stability
-
Including uncertainties
due to ADC and
V_DDA/V_REF+ values
–40 °C < T_J < +125 °C
1000 hours, T= 25 °C
2.99
-
-
-
Voltage coefficient
3.0 V < V_DDA < 3.6 V
-
ADC sampling time when
reading the internal reference
-
5
voltage
Startup time of reference
voltage buffer for ADC
-
-
Consumption of reference
voltage buffer for ADC
-
-
VREF_OUT output current⁽⁶⁾
-
-
VREF_OUT output load
-
-
1.224
2
3
-
25
-
-
10
-
13.5
-
-
Max
Unit
1.242
V
3
ms
3.01
V
±5
mV
100
1000
2000
ppm/°C
ppm
ppm/V
-
µs
10
µs
25
µA
1
µA
50
pF
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