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Motore di ricerca datesheet componenti elettronici |
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Motore di ricerca datesheet componenti elettronici |
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STM32F358RCT7 Scheda tecnica(PDF) 90 Page - STMicroelectronics |
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STM32F358RCT7 Scheda tecnica(HTML) 90 Page - STMicroelectronics |
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90 / 134 page  Electrical characteristics STM32F358xC 90/134 DocID025540 Rev 4 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’s 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, not tested in production. 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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