Datasheet

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STM32F302x6 STM32F302x8 Electrical characteristics
117
6.3.4 Embedded reference voltage
The parameters given in Table 27 are derived from tests performed under ambient
temperature and V
DD
supply voltage conditions summarized in Table 23.
6.3.5 Supply current characteristics
The current consumption is a function of several parameters and factors such as the
operating voltage, ambient temperature, I/O pin loading, device software configuration,
operating frequencies, I/O pin switching rate, program location in memory and executed
binary code.
The current consumption is measured as described in Figure 12: Current consumption
measurement scheme.
All Run-mode current consumption measurements given in this section are performed with a
reduced code that gives a consumption equivalent to CoreMark code.
Note: The total current consumption is the sum of I
DD
and I
DDA
.
Table 27. Embedded internal reference voltage
Symbol Parameter Conditions Min Typ Max Unit
V
REFINT
Internal reference voltage –40 °C < T
A
< +105 °C 1.20 1.23 1.25 V
T
S_vrefint
ADC sampling time when
reading the internal
reference voltage
-2.2--µs
V
RERINT
Internal reference voltage
spread over the
temperature range
V
DD
= 3 V ±10 mV - -
10
(1)
1. Guaranteed by design.
mV
T
Coeff
Temperature coefficient - - -
100
(1)
ppm/°
C
Table 28. Internal reference voltage calibration values
Calibration value name Description Memory address
V
REFINT_CAL
Raw data acquired at
temperature of 30 °C
V
DDA
= 3.3 V
0x1FFF F7BA - 0x1FFF F7BB
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