Datasheet

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STM32F303x6/x8 Electrical characteristics
101
6.3.16 Timer characteristics
The parameters given in Table 56 are guaranteed by design.
Refer to Section 6.3.14: I/O port characteristics for details on the input/output alternate
function characteristics (output compare, input capture, external clock, PWM output).
Table 56. TIMx
(1)(2)
characteristics
1. TIMx is used as a general term to refer to the TIM1, TIM2, TIM3, TIM15, TIM16 and TIM17 timers.
2. Guaranteed by design, not tested in production.
Symbol Parameter Conditions Min. Max. Unit
t
res(TIM)
Timer resolution time
-1-t
TIMxCLK
f
TIMxCLK
= 72 MHz
13.9 - ns
f
TIM1CLK
= 144 MHz 6.95 - ns
f
EXT
Timer external clock
frequency on CH1 to CH4
-0f
TIMxCLK
/2 MHz
f
TIMxCLK
= 72 MHz 0 36 MHz
Res
TIM
Timer resolution
TIMx (except TIM2) - 16
bit
TIM2 - 32
t
COUNTER
16-bit counter clock
period
- 1 65536 t
TIMxCLK
f
TIMxCLK
= 72 MHz 0.0139 910 µs
f
TIM1CLK
= 144 MHz 0.0069 455 µs
t
MAX_COUNT
Maximum possible count
with 32-bit counter
- - 65536 × 65536 t
TIMxCLK
f
TIMxCLK
= 72 MHz - 59.65 s
f
TIM1CLK
= 144 MHz - 29.825 s
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