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STM32MP151AAB3 数据表(PDF) 211 Page - STMicroelectronics |
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STM32MP151AAB3 数据表(HTML) 211 Page - STMicroelectronics |
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211 / 253 page  DS12500 Rev 3 211/253 STM32MP151A/D Electrical characteristics 232 6.3.35 Timer characteristics The parameters given in Table 93 are guaranteed by design. Refer to Section 6.3.17: I/O port characteristics for details on the input/output alternate function characteristics (output compare, input capture, external clock, PWM output). 6.3.36 Communications interfaces I2C interface characteristics The I2C interface meets the timings requirements of the I2C-bus specification for: • Standard-mode (Sm): with a bit rate up to 100 kbit/s • Fast-mode (Fm): with a bit rate up to 400 kbit/s. • Fast-mode Plus (Fm+): with a bit rate up to 1 Mbit/s. The I2C timings requirements are guaranteed by design when the I2C peripheral is properly configured and when the i2c_ker_ck frequency is greater than the minimum shown in the table below: Table 93. TIMx characteristics(1)(2) 1. TIMx is used as a general term to refer to the TIM1 to TIM17 timers. 2. Guaranteed by design. Symbol ParameterMin Max Unit tres(TIM) Timer resolution time 1 - tTIMxCLK fTIMxCLK Timer kernel clock 0 209 MHz fEXT Timer external clock frequency on CH1 to CH4 0 fTIMxCLK/2 ResTIM Timer resolution - 16/32 bit tMAX_COUNT Maximum possible count with 16-bit counters - 65536 tTIMxCLK Maximum possible count with 32-bit counter (TIM2, TIM5) 65536 × 65536 Table 94. LPTIMx characteristics(1)(2) 1. LPTIMx is used as a general term to refer to the LPTIM1 to LPTIM5 timers. 2. Guaranteed by design. Symbol Parameter Min Max Unit tres(TIM) Timer resolution time 1 - tTIMxCLK fLPTIMxCLK Timer kernel clock 0 104.5 MHz fEXT Timer external clock frequency on Input1 and Input2 0 fLPTIMxCLK/ 2 ResTIM Timer resolution - 16 bit tMAX_COUNT Maximum possible count - 65536 tTIMxCLK |
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