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STM32F303VCT6 데이터시트(PDF) 102 Page - STMicroelectronics |
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STM32F303VCT6 데이터시트(HTML) 102 Page - STMicroelectronics |
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102 / 132 page ![]() Electrical characteristics STM32F302xx/STM32F303xx 102/132 DocID023353 Rev 6 Figure 31. USB timings: definition of data signal rise and fall time Table 64. USB DC electrical characteristics Symbol Parameter Conditions Min.(1) 1. All the voltages are measured from the local ground potential. Max.(1) Unit Input levels VDD USB operating voltage(2) 2. To be compliant with the USB 2.0 full-speed electrical specification, the USB_DP (D+) pin should be pulled up with a 1.5 k Ω resistor to a 3.0-to-3.6 V voltage range. 3.0(3) 3. The STM32F3xxx USB functionality is ensured down to 2.7 V but not the full USB electrical characteristics which are degraded in the 2.7-to-3.0 V VDD voltage range. 3.6 V VDI(4) 4. Guaranteed by design, not tested in production. Differential input sensitivity I(USB_DP, USB_DM) 0.2 - V VCM(4) Differential common mode range Includes VDI range 0.8 2.5 VSE(4) Single ended receiver threshold 1.3 2.0 Output levels VOL Static output level low RL of 1.5 kΩ to 3.6 V(5) 5. RL is the load connected on the USB drivers. -0.3 V VOH Static output level high RL of 15 kΩ to VSS(5) 2.8 3.6 ai14137 tf Differen tial Data L ines VSS VCRS tr Crossover points |
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