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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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Motor de Búsqueda de Datasheet de Componentes Electrónicos |
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STM32F398VE Datasheet(PDF) 120 Page - STMicroelectronics |
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STM32F398VE Datasheet(HTML) 120 Page - STMicroelectronics |
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120 / 151 page  Electrical characteristics STM32F398VE 120/151 DocID027227 Rev 2 Table 68. 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 69. 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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