STM32F051R8 STMicroelectronics, STM32F051R8 Datasheet - Page 2

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STM32F051R8

Manufacturer Part Number
STM32F051R8
Description
Entry-level ARM Cortex-M0 MCU with 64 Kbytes Flash, 48 MHz CPU, motor control and CEC functions
Manufacturer
STMicroelectronics
Datasheet

Specifications of STM32F051R8

Voltage Range
2.0 V to 3.6 V
Conversion Range
0 to 3.6V
Systick Timer
24-bit downcounter

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Contents
Contents
1
2
3
2/3
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
3.10
3.11
3.12
3.13
3.14
3.15
3.16
3.17
3.18
Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Real-time clock (RTC) and backup registers . . . . . . . . . . . . . . . . . . . . . . 14
Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inter-integrated circuit interfaces (I
Universal synchronous/asynchronous receiver transmitters (USART) . . . 18
General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 20
Touch sensing controller (TSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
ARM® CortexTM-M0 core with embedded Flash and SRAM . . . . . . . . . 10
Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cyclic redundancy check calculation unit (CRC) . . . . . . . . . . . . . . . . . . . 10
Direct memory access controller (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . 11
Nested vectored interrupt controller (NVIC) . . . . . . . . . . . . . . . . . . . . . . . 11
Extended interrupt/event controller (EXTI) . . . . . . . . . . . . . . . . . . . . . . . . 11
Clocks and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.9.1
3.9.2
3.9.3
3.12.1
3.12.2
3.12.3
3.12.4
3.12.5
3.12.6
Serial peripheral interface (SPI)/Inter-integrated sound interfaces (I
High-definition multimedia interface (HDMI) - consumer electronics control
(CEC) 20
Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Power supply supervisors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Advanced-control timer (TIM1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
General-purpose timers (TIM2..3, TIM14..17) . . . . . . . . . . . . . . . . . . . . 16
Basic timer TIM6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Independent window watchdog (IWWDG) . . . . . . . . . . . . . . . . . . . . . . . 17
System window watchdog (WWDG) . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Doc ID 018746 Rev 2
2
C) . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
STM32F051x
2
S) . 19

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