STM32F401 datasheet(27/135 Pages) STMICROELECTRONICS

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STM32F401xD STM32F401xE

Functional overview

3.19

Timers and watchdogs

The devices embed one advanced-control timer, seven general-purpose timers and two

watchdog timers.

All timer counters can be frozen in debug mode.

Table 4 compares the features of the advanced-control and general-purpose timers.

3.19.1

Advanced-control timers (TIM1)

The advanced-control timer (TIM1) can be seen as three-phase PWM generators

multiplexed on 4 independent channels. It has complementary PWM outputs with

programmable inserted dead times. It can also be considered as a complete general-

purpose timer. Its 4 independent channels can be used for:

•

Input capture

•

Output compare

•

PWM generation (edge- or center-aligned modes)

•

One-pulse mode output

Table 4. 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)

Advanced-

control

TIM1

16-bit

Up,

Down,

Up/down

Any

integer

between1

and

65536

Yes

General

purpose

TIM2,

TIM5

32-bit

Up,

Down,

Up/down

Any

integer

between1

and

65536

Yes

TIM3,

TIM4

16-bit

Up,

Down,

Up/down

Any

integer

between1

and

65536

Yes

TIM9

16-bit

Any

integer

between1

and

65536

TIM1

TIM11

16-bit

Any

integer

between1

and

65536

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