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STM32H7B3AI 数据表(PDF) 81 Page - STMicroelectronics |
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STM32H7B3AI 数据表(HTML) 81 Page - STMicroelectronics |
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81 / 238 page  1. 100 nF filtering capacitor on each package pin. 2. A tolerance of +/- 20% is acceptable on decoupling capacitors. Note: Refer to Getting started with STM32H7A3/7B3 and STM32H7B0 hardware development(AN5307) for more details. Caution: Each power supply pair (VDD/VSS, VDDA/VSSA ...) must be decoupled with filtering ceramic capacitors as shown above. These capacitors must be placed as close as possible to, or below, the appropriate pins on the underside of the PCB to ensure good operation of the device. It is not recommended to remove filtering capacitors to reduce PCB size or cost. This might cause incorrect operation of the device. 6.1.7 Current consumption measurement Figure 22. Current consumption measurement scheme IDD_VBAT LDO ON VBAT IDD VDD VDDA VDDLDO VDDMMC IDD_VBAT SMPS ON VBAT IDD VDD VDDA VDDSMPS VDDMMC 6.2 Absolute maximum ratings Stresses above the absolute maximum ratings listed in Table 19. Voltage characteristics, Table 20. Current characteristics, and Table 21. Thermal characteristics may cause permanent damage to the device. These are stress ratings only and the functional operation of the device at these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Device mission profile (application conditions) is compliant with JEDEC JESD47 Qualification Standard, extended mission profiles are available on demand. Table 19. Voltage characteristics All main power (VDD, VDDA, VDD33USB, VDDMMC, VDDSMPS, VBAT) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the permitted range. Symbols Ratings Min Max Unit VDDX − VSS External main supply voltage (including VDD, VDDLDO, VDDSMPS, VDDA, VDD33USB, VDDMMC, VBAT, VREF+) −0.3 4.0 V VIN(1) Input voltage on FT_xxx pins VSS−0.3 Min(VDD, VDDA, VDD33USB, VDDMMC, VBAT) +4.0(2)(3) V Input voltage on TT_xx pins VSS−0.3 4.0 V Input voltage on BOOT0 pin VSS 9.0 V Input voltage on any other pins VSS−0.3 4.0 V |ΔVDDX| Variations between different VDDX power pins of the same domain - 50 mV STM32H7B3xI Absolute maximum ratings DS13139 - Rev 8 page 81/238 |
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