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STM32F427AI 数据表(PDF) 164 Page - STMicroelectronics |
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STM32F427AI 数据表(HTML) 164 Page - STMicroelectronics |
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164 / 240 page  Electrical characteristics STM32F427xx STM32F429xx 164/240 DS9405 Rev 12 Figure 53. Power supply and reference decoupling (VREF+ connected to VDDA) 1. VREF+ and VREF– inputs are both available on UFBGA176. VREF+ is also available on LQFP100, LQFP144, and LQFP176. When VREF+ and VREF– are not available, they are internally connected to VDDA and VSSA. 6.3.22 Temperature sensor characteristics STM32F 1 μF // 10 nF ai17536c VREF+/VDDA VREF-/VSSA (1) (1) Table 81. 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 - V tSTART(2) Startup time - 6 10 µs TS_temp(2) ADC sampling time when reading the temperature (1 °C accuracy) 10 - - µs 1. Evaluated by characterization. 2. Specified by design. Table 82. 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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