STM32L443CC datasheet(40/207 Pages) STMICROELECTRONICS

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Functional overview

STM32L443CC STM32L443RC STM32L443VC

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DocID028739 Rev 2

3.24.1

Advanced-control timer (TIM1)

The advanced-control timer can each be seen as a three-phase PWM multiplexed on 6

channels. They have complementary PWM outputs with programmable inserted dead-

times. They can also be seen as complete general-purpose timers. The 4 independent

channels can be used for:

•

Input capture

•

Output compare

•

PWM generation (edge or center-aligned modes) with full modulation capability (0-

100%)

•

One-pulse mode output

In debug mode, the advanced-control timer counter can be frozen and the PWM outputs

disabled to turn off any power switches driven by these outputs.

Many features are shared with those of the general-purpose TIMx timers (described in

Section 3.24.2) using the same architecture, so the advanced-control timer can work

together with the TIMx timers via the Timer Link feature for synchronization or event

chaining.

3.24.2

General-purpose timers (TIM2, TIM15, TIM16)

There are up to three synchronizable general-purpose timers embedded in the

STM32L443xx (see Table 8 for differences). Each general-purpose timer can be used to

generate PWM outputs, or act as a simple time base.

•

TIM2

It is a full-featured general-purpose timer:

TIM2 has a 32-bit auto-reload up/downcounter and 32-bit prescaler.

This timer features 4 independent channels for input capture/output compare, PWM or

one-pulse mode output. It can work with the other general-purpose timers via the Timer

Link feature for synchronization or event chaining.

The counter can be frozen in debug mode.

It has independent DMA request generation and support quadrature encoder.

•

TIM15 and 16

They are general-purpose timers with mid-range features:

They have 16-bit auto-reload upcounters and 16-bit prescalers.

–

TIM15 has 2 channels and 1 complementary channel

–

TIM16 has 1 channel and 1 complementary channel

All channels can be used for input capture/output compare, PWM or one-pulse mode

output.

The timers can work together via the Timer Link feature for synchronization or event

chaining. The timers have independent DMA request generation.

The counters can be frozen in debug mode.

3.24.3

Basic timers (TIM6 and TIM7)

The basic timers are mainly used for DAC trigger generation. They can also be used as

generic 16-bit timebases.

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