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STM32F050C4 数据表(PDF) 37 Page - STMicroelectronics |
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STM32F050C4 数据表(HTML) 37 Page - STMicroelectronics |
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37 / 97 page ![]() STM32F050xx Electrical characteristics Doc ID 023683 Rev 1 37/97 6.2 Absolute maximum ratings Stresses above the absolute maximum ratings listed in Table 12: Voltage characteristics, Table 13: Current characteristics, and Table 14: 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 12. Voltage characteristics(1) 1. All main power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the permitted range. Symbol Ratings Min Max Unit VDD–VDDA Allowed voltage difference for VDD >VDDA -0.4 V VIN (2) 2. VIN maximum must always be respected. Refer to Table 13: Current characteristics for the maximum allowed injected current values. Input voltage on FT and FTf pins VSS −0.3 VDD + 4.0 V Input voltage on TTa pins VSS −0.3 4.0 V Input voltage on any other pin VSS −0.3 4.0 V | ΔVDDx| Variations between different VDD power pins - 50 mV |VSSX −VSS| Variations between all the different ground pins -50 mV VESD(HBM) Electrostatic discharge voltage (human body model) see Section 6.3.11: Electrical sensitivity characteristics Table 13. Current characteristics Symbol Ratings Max. Unit IVDD(Σ) Total current into sum of all VDD_x and VDDSDx power lines (source)(1) 120 mA IVSS(Σ) Total current out of sum of all VSS_x and VSSSD ground lines (sink)(1) -120 IVDD(PIN) Maximum current into each VDD_x or VDDSDx power pin (source)(1) 100 IVSS(PIN) Maximum current out of each VSS_x or VSSSD ground pin (sink)(1) -100 IIO(PIN) Output current sunk by any I/O and control pin 25 Output current source by any I/O and control pin - 25 ΣIIO(PIN) Total output current sunk by sum of all IOs and control pins(2) 80 Total output current sourced by sum of all IOs and control pins(2) -80 IINJ(PIN) Injected current on FT, FTf and B pins(3) -5/+0 Injected current on TC and RST pin(4) ± 5 Injected current on TTa pins(5) ± 5 ΣIINJ(PIN) Total injected current (sum of all I/O and control pins)(6) ± 25 1. All main power (VDD, VDDA) and ground (VSS, VSSA) pins must always be connected to the external power supply, in the permitted range. |
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