STM32F446MC datasheet(31/201 Pages) STMICROELECTRONICS

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31/201

STM32F446xC/E

Functional overview

3.21

Timers and watchdogs

The devices include two advanced-control timers, eight general-purpose timers, two basic

timers and two watchdog timers.

All timer counters can be frozen in debug mode.

Table 6 compares the features of the advanced-control, general-purpose and basic timers.

Table 6. Timer feature comparison

Timer

type

Timer

Counter

resolution

Counter

type

Prescaler

factor

DMA

request

generation

Capture/

compare

channels

Complementary

output

Max

interface

clock

(MHz)

Max

timer

clock

(MHz)(1)

Advanced-

control

TIM1,

TIM8

16-bit

Up,

Down,

Up/down

Any integer

between 1

and 65536

Yes

180

General

purpose

TIM2,

TIM5

32-bit

Up,

Down,

Up/down

Any integer

between 1

and 65536

Yes

90/180

TIM3,

TIM4

16-bit

Up,

Down,

Up/down

Any integer

between 1

and 65536

Yes

90/180

TIM9

16-bit

Any integer

between 1

and 65536

180

TIM10,

TIM11

16-bit

Any integer

between 1

and 65536

180

TIM12

16-bit

Any integer

between 1

and 65536

90/180

TIM13,

TIM14

16-bit

Any integer

between 1

and 65536

90/180

Basic

TIM6,

TIM7

16-bit

Any integer

between 1

and 65536

Yes

90/180

1. The maximum timer clock is either 90 or 180 MHz depending on TIMPRE bit configuration in the RCC_DCKCFGR

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