STM32F217RGT7 查看數據表（PDF） - STMicroelectronics

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STM32F217RGT7

ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM, crypto, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 15 comm. interfaces & camera

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Electrical characteristics

STM32F21xxx

5.3.18

TIM timer characteristics

The parameters given in Table 47 and Table 48 are guaranteed by design.

Refer to Section 5.3.16: I/O port characteristics for details on the input/output alternate

function characteristics (output compare, input capture, external clock, PWM output).

Table 47. Characteristics of TIMx connected to the APB1 domain(1)

Symbol

Parameter

Conditions

Min

Max

Unit

tres(TIM) Timer resolution time

AHB/APB1

prescaler distinct

from 1, fTIMxCLK =

60 MHz

AHB/APB1

prescaler = 1,

fTIMxCLK = 30 MHz

1

16.7

1

33.3

-

tTIMxCLK

-

ns

-

tTIMxCLK

-

ns

fEXT

Timer external clock

frequency on CH1 to CH4

0

fTIMxCLK/2

MHz

0

30

MHz

ResTIM Timer resolution

-

16/32

bit

tCOUNTER

16-bit counter clock period

when internal clock is

selected

fTIMxCLK = 60 MHz

APB1= 30 MHz

32-bit counter clock period

when internal clock is

selected

1

0.0167

1

0.0167

65536

1092

-

71582788

tTIMxCLK

µs

tTIMxCLK

µs

tMAX_COUNT Maximum possible count

-

65536 × 65536 tTIMxCLK

-

71.6

s

1. TIMx is used as a general term to refer to the TIM2, TIM3, TIM4, TIM5, TIM6, TIM7, and TIM12 timers.

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Doc ID 17050 Rev 8

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