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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STM32F302X6 датащи(PDF) 93 Page - STMicroelectronics |
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STM32F302X6 датащи(HTML) 93 Page - STMicroelectronics |
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93 / 138 page  DocID025147 Rev 6 93/138 STM32F302x6 STM32F302x8 Electrical characteristics 117 Table 58. IWDG min/max timeout period at 40 kHz (LSI) (1) 1. These timings are given for a 40 kHz clock but the microcontroller internal RC frequency can vary from 30 to 60 kHz. Moreover, given an exact RC oscillator frequency, the exact timings still depend on the phasing of the APB interface clock versus the LSI clock so that there is always a full RC period of uncertainty. Prescaler divider PR[2:0] bits Min timeout (ms) RL[11:0]= 0x000 Max timeout (ms) RL[11:0]= 0xFFF /4 0 0.1 409.6 /8 1 0.2 819.2 /16 2 0.4 1638.4 /32 3 0.8 3276.8 /64 4 1.6 6553.6 /128 5 3.2 13107.2 /256 7 6.4 26214.4 Table 59. WWDG min-max timeout value @72 MHz (PCLK)(1) 1. Guaranteed by design. Prescaler WDGTB Min timeout value Max timeout value 1 0 0.05687 3.6409 2 1 0.1137 7.2817 4 2 0.2275 14.564 8 3 0.4551 29.127 |
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