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STM32F303VC 数据表(PDF) 56 Page - STMicroelectronics |
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STM32F303VC 数据表(HTML) 56 Page - STMicroelectronics |
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56 / 133 page  Electrical characteristics STM32F302xx/STM32F303xx 56/133 Doc ID 023353 Rev 5 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 functional operation of the device at these conditions is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability. Table 19. Voltage characteristics(1) Symbol Ratings Min Max Unit VDD–VSS External main supply voltage (including VDDA, VBAT and VDD) -0.3 4.0 V VDD–VDDA Allowed voltage difference for VDD > VDDA -0.4 VREF+–VDDA (2) Allowed voltage difference for VREF+ > VDDA -0.4 VIN (3) Input voltage on FT and FTf pins VSS − 0.3 VDD + 4.0 Input voltage on TTa pins VSS − 0.3 4.0 Input voltage on any other pin VSS − 0.3 4.0 | ΔVDDx| Variations between different VDD power pins - 50 mV |VSSX − VSS| Variations between all the different ground pins - 50 VESD(HBM) Electrostatic discharge voltage (human body model) see Section 6.3.12: Electrical sensitivity characteristics 1. All main power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the permitted range. The following relationship must be respected between VDDA and VDD: VDDA must power on before or at the same time as VDD in the power up sequence. VDDA must be greater than or equal to VDD. 2. VREF+ must be always lower or equal than VDDA (VREF+ ≤ VDDA). If unused then it must be connected to VDDA. 3. VIN maximum must always be respected. Refer to Table 20: Current characteristics for the maximum allowed injected current values. |
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