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STM32U385CG Datasheet(PDF) 148 Page - STMicroelectronics |
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STM32U385CG Datasheet(HTML) 148 Page - STMicroelectronics |
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148 / 224 page  (2): The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in the above table. Otherwise the reset is not taken into account by the device. (3): The external capacitor on NRST must be placed as close as possible to the device. 5.3.16 Extended interrupt and event controller input (EXTI) characteristics The pulse on the interrupt input must have a minimal length in order to guarantee that it is detected by the event controller. Table 93. EXTI input characteristics Specified by design and not tested in production. Symbol Parameter Conditions Min Typ Max Unit PLEC Pulse length to event controller - 25 - - ns 5.3.17 Analog switches booster Table 94. Analog switches booster characteristics Specified by design and not tested in production. Symbol Parameter Min Typ Max Unit VDD Supply voltage 1.6 1.8 3.6 V tSU(BOOST) Booster startup time - - 50 µs IDD(BOOST) Booster consumption - - 125 µA 5.3.18 12-bit analog-to-digital converter ADC characteristics Unless otherwise specified, the parameters given in Table 95 are values derived from tests performed under ambient temperature, fHCLK frequency, and VDDA supply voltage conditions summarized in Table 27. Note: It is recommended to perform a calibration after each power-up. Table 95. 12-bit ADC characteristics The voltage booster on the ADC switches must be used when VDDA < 2.4 V (embedded I/O switches). Specified by design. Not tested in production. Symbol Parameter Conditions Min Typ Max Unit VDDA Analog power supply for ADC ON - 1.62 - 3.6 V VREF+ Positive reference voltage - 1 - VDDA VREF- Negative reference voltage - VSSA fADC ADC clock frequency 1.62 V ≤ VDDA ≤ 3.6 V 0.14 - 55 MHz ADC clock duty cycle - 45 - 55 % fs Sampling rate Resolution = 12 bits 0.01 - 2.75 Msps Resolution = 10 bits 0.012 - 3.05 Resolution = 8 bits 0.014 - 3.43 Resolution = 6 bits 0.0175 - 3.92 tTRIG External trigger period Resolution = 12 bits 16 - - 1/fADC VAIN(1) Conversion voltage range - 0 - VREF+ V RAIN(2) External input impedance Tj = 110°C Resolution = 12 bits - - 2.2 kΩ Resolution = 10 bits - - 6.8 Resolution = 8 bits - - 33.0 STM32U385xx Electrical characteristics DS14830 - Rev 2 page 148/224 |
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