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STM32F401CB 数据表(PDF) 87 Page - STMicroelectronics |
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STM32F401CB 数据表(HTML) 87 Page - STMicroelectronics |
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87 / 135 page  Electrical characteristics STM32F401xB STM32F401xC 87/135 DocID024738 Rev 6 Electromagnetic Interference (EMI) The electromagnetic field emitted by the device are monitored while a simple application, executing EEMBC code, is running. This emission test is compliant with SAE IEC61967-2 standard which specifies the test board and the pin loading. 6.3.14 Absolute maximum ratings (electrical sensitivity) Based on three different tests (ESD, LU) using specific measurement methods, the device is stressed in order to determine its performance in terms of electrical sensitivity. Electrostatic discharge (ESD) Electrostatic discharges (a positive then a negative pulse separated by 1 second) are applied to the pins of each sample according to each pin combination. The sample size depends on the number of supply pins in the device (3 parts × (n+1) supply pins). This test conforms to the JESD22-A114/C101 standard. Table 49. EMI characteristics for WLCSP49 Symbol Parameter Conditions Monitored frequency band Max vs. [fHSE/fCPU] Unit 25/84 MHz SEMI Peak level VDD = 3.3 V, TA = 25 °C, conforming to IEC61967-2 0.1 to 30 MHz -6 dBµV 30 to 130 MHz -6 130 MHz to 1 GHz -10 SAE EMI Level 1.5 - Table 50. EMI characteristics for LQFP100 Symbol Parameter Conditions Monitored frequency band Max vs. [fHSE/fCPU] Unit 25/84 MHz SEMI Peak level VDD = 3.3 V, TA = 25 °C, conforming to IEC61967-2 0.1 to 30 MHz 18 dBµV 30 to 130 MHz 23 130 MHz to 1 GHz 12 SAE EMI Level 3.5 - |
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