STM32H562II datasheet(218/270 Pages) STMICROELECTRONICS

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Electrical characteristics

STM32H562xx and STM32H563xx

218/270

DS14258 Rev 5

5.3.31

Timer characteristics

The parameters given in Table 109 are guaranteed by design.

Refer to Section 5.3.15 for details on the input/output alternate function characteristics

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

5.3.32

Low-power timer characteristics

Table 109. TIMx characteristics(1)(2)

Symbol

Parameter

Conditions(3)

Min

Max

Unit

tres(TIM)

Timer resolution time

AHB/APBx prescaler = 1, 2, or 4,

fTIMxCLK = 250 MHz

tTIMxCLK

AHB/APBx prescaler > 4,

fTIMxCLK = 125 MHz

tTIMxCLK

fEXT

Timer external clock

frequency on CH1 to CH4

fTIMxCLK = 250 MHz

fTIMxCLK / 2

MHz

ResTIM

Timer resolution

16 / 32

bit

tMAX_COUNT

Maximum possible count

with 32-bit counter

65536 × 65536 tTIMxCLK

1. TIMx is used as a general term to refer to the TIM1 to TIM17 timers.

2. Specified by design - Not tested in production.

3. The maximum timer frequency on APB1 or APB2 is up to 250 MHz, by setting the TIMPRE bit in the RCC_CFGR register,

if APBx prescaler is 1 or 2 or 4, then TIMxCLK = rcc_hclk1, otherwise TIMxCLK = 4 x Frcc_pclkx1 or

TIMxCLK = 4 x Frcc_pclkx2.

Table 110. LPTIMx characteristics(1)(2)

Symbol

Parameter

Min

Max

Unit

tres(TIM)

Timer resolution time

tlptim_ker_ck

flptim_ker_ck

Timer kernel clock

250

MHz

fEXT

Timer external clock frequency on Input1 and Input2

flptim_ker_ck / 3

ResTIM

Timer resolution

bit

tMAX_COUNT

Maximum possible count

65535

tlptim_ker_ck

1. LPTIMx is used as a general term for LPTIM1 to LPTIM6 timers.

2. Specified by design - Not tested in production.

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