STM32F303VCT6 datasheet(22/132 Pages) STMICROELECTRONICS

22 / 132 page

Functional overview

STM32F302xx/STM32F303xx

22/132

DocID023353 Rev 6

3.15

Fast comparators (COMP)

The STM32F302xx/STM32F303xx devices embed seven fast rail-to-rail comparators with

programmable reference voltage (internal or external), hysteresis and speed (low speed for

low power) and with selectable output polarity.

The reference voltage can be one of the following:

•

External I/O

•

DAC output pin

•

Internal reference voltage or submultiple (1/4, 1/2, 3/4). Refer to Table 26: Embedded

internal reference voltage on page 62 for the value and precision of the internal

reference voltage.

All comparators can wake up from STOP mode, generate interrupts and breaks for the

timers and can be also combined per pair into a window comparator

3.16

Timers and watchdogs

The STM32F302xx/STM32F303xx includes up to two advanced control timers, up to 6

general-purpose timers, two basic timers, two watchdog timers and a SysTick timer. The

table below compares the features of the advanced control, general purpose and basic

timers.

Table 3. Timer feature comparison

Timer type

Timer

Counter

resolution

Counter

type

Prescaler

factor

DMA

request

generation

Capture/

compare

Channels

Complementary

outputs

Advanced

TIM1,

TIM8 (on

STM32F303xB

/STM32F303x

C devices only)

16-bit

Up, Down,

Up/Down

Any integer

between 1

and 65536

Yes

General-

purpose

TIM2

32-bit

Up, Down,

Up/Down

Any integer

between 1

and 65536

Yes

General-

purpose

TIM3, TIM4

16-bit

Up, Down,

Up/Down

Any integer

between 1

and 65536

Yes

General-

purpose

TIM15

16-bit

Any integer

between 1

and 65536

Yes

General-

purpose

TIM16, TIM17

16-bit

Any integer

between 1

and 65536

Yes

Basic

TIM6,

TIM7 (on

STM32F303xB

/STM32F303x

C devices only)

16-bit

Any integer

between 1

and 65536

Yes

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