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STM32F303RC bảng dữ liệu(PDF) 93 Page - STMicroelectronics

tên linh kiện STM32F303RC
Giải thích chi tiết về linh kiện  ARM®-based Cortex®-M4 32b MCUFPU, up to 256KB Flash 48KB SRAM, 4 ADCs, 2 DAC ch., 7 comp, 4 PGA, timers, 2.0-3.6 V
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32F303RC bảng dữ liệu(HTML) 93 Page - STMicroelectronics

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STM32F303xB STM32F303xC
Electrical characteristics
124
Table 59. 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 60. 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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