STM32F446VC datasheet(147/201 Pages) STMICROELECTRONICS

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STM32F446xC/E

Electrical characteristics

174

Figure 48. Power supply and reference decoupling (VREF+ connected to VDDA)

1. VREF+ and VREF– inputs are both available on UFBGA144. VREF+ is also available on LQFP100, LQFP144,

and WLCSP81. When VREF+ and VREF– are not available, they are internally connected to VDDA and VSSA.

6.3.22

Temperature sensor characteristics

Table 80. Temperature sensor characteristics

Symbol

Parameter

Min

Typ

Max

Unit

TL(1)

VSENSE linearity with temperature

±1

±2°C

Avg_Slope(1) Average slope

2.5

mV/°C

V25(1)

Voltage at 25 °C

0.76

tSTART(2)

Startup time

µs

TS_temp(2)

ADC sampling time when reading the temperature (1 °C accuracy)

µs

1. Guaranteed based on test during characterization.

2. Guaranteed by design.

Table 81. Temperature sensor calibration values

Symbol

Parameter

Memory address

TS_CAL1

TS ADC raw data acquired at temperature of 30 °C, VDDA= 3.3 V

0x1FFF 7A2C - 0x1FFF 7A2D

TS_CAL2

TS ADC raw data acquired at temperature of 110 °C, VDDA= 3.3 V 0x1FFF 7A2E - 0x1FFF 7A2F

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