STM32F051R4T6TR STMicroelectronics, STM32F051R4T6TR Datasheet - Page 84

• Manufacturer Part Number: STM32F051R4T6TR
• Description: ARM Microcontrollers - MCU ARM Cortex M0 16kB 48 MHz CPU 8kB Flash
• Manufacturer: STMicroelectronics

Specifications of STM32F051R4T6TR

• Rohs: yes

STM32F051x
Table 61.
1. TIMx is used as a general term to refer to the TIM1, TIM2, TIM3, TIM6, TIM14, TIM15, TIM16 and TIM17
Table 62.
1. These timings are given for a 40 kHz clock but the microcontroller’s internal RC frequency can vary from
Table 63.
t
MAX_COUNT
Prescaler divider
t
Symbol
COUNTER
timers.
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
1
2
4
8
/128
/256
/16
/32
/64
/4
/8
TIMx
16-bit counter clock period
Maximum possible count
with 32-bit counter
IWDG min/max timeout period at 40 kHz (LSI)
WWDG min-max timeout value @48 MHz (PCLK)
(1)
WDGTB
Parameter
PR[2:0] bits
characteristics (continued)
0
1
2
3
6 or 7
0
1
2
3
4
5
Doc ID 022265 Rev 3
Min timeout RL[11:0]=
Min timeout value
f
f
TIMxCLK
TIMxCLK
0.0853
0.1706
0.3413
0.6826
Conditions
0x000
0.1
0.2
0.4
0.8
1.6
3.2
6.4
= 48 MHz
= 48 MHz
0.0208
Max timeout value
Min
Max timeout RL[11:0]=
1
-
-
(1)
10.9226
21.8453
43.6906
5.4613
Electrical characteristics
65536 × 65536
13107.2
26214.4
1638.4
3276.8
6553.6
0xFFF
409.6
819.2
65536
89.48
1365
Max
t
t
Unit
TIMxCLK
TIMxCLK
ms
Unit
µs
Unit
85/105
s
ms