STM32F301R8U7TR(2014) 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

STM32F301R8U7TR
(Rev.:2014)

ARM® Cortex®-M4 32-bit MCU+FPU, up to 64 KB Flash, 16 KB SRAM, ADC, DAC, COMP, Op-Amp, 2.0 – 3.6 V

STMicroelectronics 

STM32F301x6 STM32F301x8

Electrical characteristics

Table 58. IWDG min/max timeout period at 40 kHz (LSI) (1)

Prescaler divider PR[2:0] bits

Min timeout (ms) RL[11:0]=

0x000

Max timeout (ms) RL[11:0]=

0xFFF

/4

0

0.1

/8

1

0.2

/16

2

0.4

/32

3

0.8

/64

4

1.6

/128

5

3.2

/256

7

6.4

409.6

819.2

1638.4

3276.8

6553.6

13107.2

26214.4

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.

Table 59. WWDG min-max timeout value @72 MHz (PCLK)(1)

Prescaler

WDGTB

Min timeout value

Max timeout value

1

0

2

1

4

2

8

3

0.05687

0.1137

0.2275

0.4551

3.6409

7.2817

14.564

29.127

1. Guaranteed by design, not tested in production.

DocID025146 Rev 3

91/132

112

Share Link: