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STM32F302x8 데이터시트(PDF) 93 Page - STMicroelectronics

부품명 STM32F302x8
상세설명  Reset and power management
PDF  138 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STM32F302x8 데이터시트(HTML) 93 Page - STMicroelectronics

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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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