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STM32WB35CC Datasheet(PDF) 98 Page - STMicroelectronics

No. de pieza STM32WB35CC
Descripción Electrónicos  Multiprotocol wireless 32-bit MCU Arm®-based Cortex®-M4 with FPU, Bluetooth® 5.2 and 802.15.4 radio solution
PDF  193 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
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STM32WB35CC Datasheet(HTML) 98 Page - STMicroelectronics

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Electrical characteristics
STM32WB55xx STM32WB35xx
98/193
DS11929 Rev 11
6.3.7
Embedded voltage reference
The parameters given in Table 36 are derived from tests performed under the ambient
temperature and supply voltage conditions summarized in Table 24: General operating
conditions.
Figure 21. VREFINT vs. temperature
Table 36. Embedded internal voltage reference
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VREFINT
Internal reference voltage
–40 °C < TA < +125 °C
1.182 1.212
1.232
V
tS_vrefint (1)
ADC sampling time when reading
the internal reference voltage
-4(2)
--
µs
tstart_vrefint
Start time of reference voltage
buffer when ADC is enabled
--
8
12(2)
IDD(VREFINTBUF)
VREFINT buffer consumption from
VDD when converted by ADC
-
-
12.5
20(2)
µA
∆VREFINT
Internal reference voltage spread
over the temperature range
VDD = 3 V
-
5
7.5(2)
mV
TCoeff
Temperature coefficient
–40 °C < TA < +125 °C
-
30
50(2)
ppm/°C
ACoeff
Long term stability
1000 hours, T = 25 °C
-
300
1000(2)
ppm
VDDCoeff
Voltage coefficient
3.0 V < VDD < 3.6 V
-
250
1200(2)
ppm/V
VREFINT_DIV1
1/4 reference voltage
-
24
25
26
%
VREFINT
VREFINT_DIV2
1/2 reference voltage
49
50
51
VREFINT_DIV3
3/4 reference voltage
74
75
76
1. The shortest sampling time can be determined in the application by multiple iterations.
2. Guaranteed by design.
MSv40169V1
1.185
1.19
1.195
1.2
1.205
1.21
1.215
1.22
1.225
1.23
1.235
-40
-20
0
20
40
60
80
100
120
V
°C
Mean
Min
Max



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