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STM32F373VC 数据表(PDF) 60 Page - STMicroelectronics |
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STM32F373VC 数据表(HTML) 60 Page - STMicroelectronics |
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60 / 137 page  Electrical characteristics STM32F373xx 60/137 DocID022691 Rev 7 6.3.4 Embedded reference voltage The parameters given in Table 27 are derived from tests performed under ambient temperature and VDD supply voltage conditions summarized in Table 22. Table 26. Embedded internal reference voltage calibration values Calibration value name Description Memory address VREFINT_CAL Raw data acquired at temperature of 30 °C VDDA= 3.3 V 0x1FFF F7BA - 0x1FFF F7BB Table 27. Embedded internal reference voltage Symbol Parameter Conditions Min Typ Max Unit VREFINT Internal reference voltage –40 °C < TA < +105 °C 1.20 1.23 1.25 V TS_vrefint(1) 1. Shortest sampling time can be determined in the application by multiple iterations. ADC sampling time when reading the internal reference voltage - 17.10 - - µs VREFINT_s(2) 2. Guaranteed by design. Internal reference voltage spread over the temperature range VDD = 3 V ±10 mV - - 10 mV TCoeff(2) Temperature coefficient - - - 100 ppm/°C tSTART(2) Startup time - - - 10 µs |
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