STM32F051K4U6 STMicroelectronics, STM32F051K4U6 Datasheet - Page 21

• Manufacturer Part Number: STM32F051K4U6
• Description: ARM Microcontrollers - MCU Entry-Level ARM M0 16kB 2.0V to 3.6V
• Manufacturer: STMicroelectronics

Specifications of STM32F051K4U6

• Product Category: ARM Microcontrollers - MCU
• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: STM32F051xx
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 48 MHz
• Program Memory Size: 16 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: UFQFN-48
• Mounting Style: SMD/SMT

STM32F051x
3.14.2
3.14.3
3.14.4
General-purpose timers (TIM2..3, TIM14..17)
There are six synchronizable general-purpose timers embedded in the STM32F051x
devices (see
PWM outputs, or as simple time base.
TIM2, TIM3
STM32F051x devices feature two synchronizable 4-channel general-purpose timers. TIM2
is based on a 32-bit auto-reload up/downcounter and a 16-bit prescaler. TIM3 is based on a
16-bit auto-reload up/downcounter and a 16-bit prescaler. They feature 4 independent
channels each for input capture/output compare, PWM or one-pulse mode output. This
gives up to 12 input captures/output compares/PWMs on the largest packages.
The TIM2 and TIM3 general-purpose timers can work together or with the TIM1 advanced-
control timer via the Timer Link feature for synchronization or event chaining.
TIM2 and TIM3 both have independent DMA request generation.
These timers are capable of handling quadrature (incremental) encoder signals and the
digital outputs from 1 to 3 hall-effect sensors.
Their counters can be frozen in debug mode.
TIM14
This timer is based on a 16-bit auto-reload upcounter and a 16-bit prescaler.
TIM14 features one single channel for input capture/output compare, PWM or one-pulse
mode output.
Its counter can be frozen in debug mode.
TIM15, TIM16 and TIM17
These timers are based on a 16-bit auto-reload upcounter and a 16-bit prescaler.
TIM15 has two independent channels, whereas TIM16 and TIM17 feature one single
channel for input capture/output compare, PWM or one-pulse mode output.
The TIM15, TIM16 and TIM17 timers can work together, and TIM15 can also operate with
TIM1 via the Timer Link feature for synchronization or event chaining.
TIM15 can be synchronized with TIM16 and TIM17.
TIM15, TIM16, and TIM17 have a complementary output with dead-time generation and
independent DMA request generation
Their counters can be frozen in debug mode.
Basic timer TIM6
This timer is mainly used for DAC trigger generation. It can also be used as a generic 16-bit
time base.
Independent watchdog (IWDG)
The independent watchdog is based on an 8-bit prescaler and 12-bit downcounter with user-
defined refresh window. It is clocked from an independent 40 kHz internal RC and as it
Table 7
for differences). Each general-purpose timer can be used to generate
Doc ID 022265 Rev 3
Functional overview
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