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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F102C6T6ATR датащи(PDF) 51 Page - STMicroelectronics |
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STM32F102C6T6ATR датащи(HTML) 51 Page - STMicroelectronics |
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51 / 69 page  STM32F102x4, STM32F102x6 Electrical characteristics Doc ID 15057 Rev 3 51/69 5.3.14 TIM timer characteristics The parameters given in Table 37 are guaranteed by design. Refer to Section 5.3.12: I/O port characteristics for details on the input/output alternate function characteristics (output compare, input capture, external clock, PWM output). 5.3.15 Communications interfaces I2C interface characteristics Unless otherwise specified, the parameters given in Table 38 are derived from tests performed under ambient temperature, fPCLK1 frequency and VDD supply voltage conditions summarized in Table 8. The STM32F102xx low-density USB access line I2C interface meets the requirements of the standard I2C communication protocol with the following restrictions: the I/O pins SDA and SCL are mapped to are not “true” open-drain. When configured as open-drain, the PMOS connected between the I/O pin and VDD is disabled, but is still present. The I2C characteristics are described in Table 38. Refer also to Section 5.3.12: I/O port characteristics for more details on the input/output alternate function characteristics (SDA and SCL). Table 37. TIMx(1) characteristics 1. TIMx is used as a general term to refer to the TIM2, TIM3 and TIM4 timers. Symbol Parameter Conditions Min Max Unit tres(TIM) Timer resolution time 1 tTIMxCLK fTIMxCLK = 48 MHz 20.84 ns fEXT Timer external clock frequency on CH1 to CH4 0 fTIMxCLK/2 MHz fTIMxCLK = 48 MHz 024 MHz ResTIM Timer resolution 16 bit tCOUNTER 16-bit counter clock period when internal clock is selected 1 65536 tTIMxCLK fTIMxCLK = 48 MHz 0.0208 1365 µs tMAX_COUNT Maximum possible count 65536 × 65536 tTIMxCLK fTIMxCLK = 48 MHz 89.48 s |
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