Mainstream ARM Cortex-M0 Access line MCU with 16 Kbytes Flash, 48 MHz CPU, motor control and CEC functions

The STM32F051xx microcontrollers incorporate the high-performance ARM®Cortex®-M0 32-bit RISC core operating at up to 48 MHz frequency, high-speed embedded memories (up to 64 Kbytes of Flash memory and 8 Kbytes of SRAM), and an extensive range of enhanced peripherals and I/Os. All devices offer standard communication interfaces (up to two I2Cs, up to two SPIs, one I2S, one HDMI CEC and up to two USARTs), one 12-bit ADC, one 12-bit DAC, six 16-bit timers, one 32-bit timer and an advanced-control PWM timer.

The STM32F051xx microcontrollers operate in the -40 to +85 °C and -40 to +105 °C temperature ranges, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving modes allows the design of low-power applications.

The STM32F051xx microcontrollers include devices in seven different packages ranging from 32 pins to 64 pins with a die form also available upon request. Depending on the device chosen, different sets of peripherals are included.

These features make the STM32F051xx microcontrollers suitable for a wide range of applications such as application control and user interfaces, hand-held equipment, A/V receivers and digital TV, PC peripherals, gaming and GPS platforms, industrial applications, PLCs, inverters, printers, scanners, alarm systems, video intercoms and HVACs.

Key Features

  • Core: ARM® 32-bit Cortex® -M0 CPU, frequency up to 48 MHz
  • Memories
    • 16 to 64 Kbytes of Flash memory
    • 8 Kbytes of SRAM with HW parity checking
  • CRC calculation unit
  • Reset and power management
    • Digital and I/O supply: VDD = 2.0 V to 3.6 V
    • Analog supply: VDDA = from VDD to 3.6 V
    • Power-on/Power down reset (POR/PDR)
    • Programmable voltage detector (PVD)
    • Low power modes: Sleep, Stop, Standby
    • VBAT supply for RTC and backup registers
  • Clock management
    • 4 to 32 MHz crystal oscillator
    • 32 kHz oscillator for RTC with calibration
    • Internal 8 MHz RC with x6 PLL option
    • Internal 40 kHz RC oscillator
  • Up to 55 fast I/Os
    • All mappable on external interrupt vectors
    • Up to 36 I/Os with 5 V tolerant capability
  • 5-channel DMA controller
  • One 12-bit, 1.0 μs ADC (up to 16 channels)
    • Conversion range: 0 to 3.6 V
    • Separate analog supply from 2.4 up to 3.6
  • One 12-bit DAC channel
  • Two fast low-power analog comparators with programmable input and output
  • Up to 18 capacitive sensing channels supporting touchkey, linear and rotary touch sensors
  • Up to 11 timers
    • One 16-bit 7-channel advanced-control timer for 6 channels PWM output, with deadtime generation and emergency stop
    • One 32-bit and one 16-bit timer, with up to 4 IC/OC, usable for IR control decoding
    • One 16-bit timer, with 2 IC/OC, 1 OCN, deadtime generation and emergency stop
    • Two 16-bit timers, each with IC/OC and OCN, deadtime generation, emergency stop and modulator gate for IR control
    • One 16-bit timer with 1 IC/OC
    • Independent and system watchdog timers
    • SysTick timer: 24-bit downcounter
    • One 16-bit basic timer to drive the DAC
  • Calendar RTC with alarm and periodic wakeup from Stop/Standby
  • Communication interfaces
    • Up to two I2 C interfaces, one supporting Fast Mode Plus (1 Mbit/s) with 20 mA current sink, SMBus/PMBus and wakeup from Stop mode
    • Up to two USARTs supporting master synchronous SPI and modem control, one with ISO7816 interface, LIN, IrDA capability, auto baud rate detection and wakeup feature
    • Up to two SPIs (18 Mbit/s) with 4 to 16 programmable bit frame, one with I2 S interface multiplexed
  • HDMI CEC interface, wakeup on header reception
  • Serial wire debug (SWD)
  • 96-bit unique ID
  • All packages ECOPACK® 2

Circuit Diagram

Resources

Technical Documentation

Product Specifications
Description Version Size
ARM®-based 32-bit MCU, 16 to 64 KB Flash, 11 timers, ADC, DAC and communication interfaces, 2.0-3.6 V 7.0 1 MB
Application Notes
Description Version Size
Audio and waveform generation using the DAC in STM32 microcontrollers 3.0 816 KB
Basics and low-cost solution proposals to move from legacy USB2.0 connector to USB Type-C™ connector with STM32 devices 1.0 443 KB
Calibrating STM32F0x1, STM32F0x2 and STM32F0x8 lines internal RC oscillators 2.0 511 KB
EMC design guide for ST microcontrollers 2.0 843 KB
ESD considerations for touch sensing applications on MCUs 2.0 353 KB
Electrostatic discharge sensitivity measurement 1.6 49 KB
Extending the DAC performance of STM32 microcontrollers 2.0 365 KB
General-purpose timer cookbook 2.0 1 MB
Getting started with STM32F0x1/x2/x8 hardware development 4.0 568 KB
Guidelines for designing touch sensing applications with surface sensors 3.0 1 MB
Guidelines to improve conducted noise robustness on STM32F0/F3, STM32L0/L4 series touch sensing applications 3.0 613 KB
Guidelines to increase the number of touch sensing touchkeys 4.0 300 KB
Handling of soft errors in STM32 applications 2.1 410 KB
High-speed SI simulations using IBIS and board-level simulations using HyperLynx SI on STM32 32-bit ARM® Cortex® MCUs 1.1 2 MB
How to get the best ADC accuracy in STM32 microcontrollers 3.1 1 MB
How to implement a vocoder solution using STM32 microcontrollers 1.1 466 KB
How to wake up an STM32F0/F3/L0/L4 microcontroller from low-power mode with the USART or the LPUART 1.0 317 KB
Implementation of transmitters and receivers for infrared remote control protocols with MCUs of the STM32F0 and STM32F3 Series 3.0 750 KB
Managing the Driver Enable signal for RS-485 and IO-Link communications with the STM32™’s USART 1.3 191 KB
Migrating between STM32F0 and STM32L0 microcontrollers 1.0 461 KB
Migrating between STM32F1 and STM32F0 series microcontrollers 3.0 1 MB
Migration and compatibility guidelines for STM32 microcontroller applications 3.1 127 KB
Migration guidelines from PIC18 to STM32F0 Series with software expansion for STM32Cube 2.0 1 MB
Oscillator design guide for STM8AF/AL/S and STM32 microcontrollers 11.0 2 MB
STM32 USART automatic baud rate detection 1.0 268 KB
STM32 cross-series timer overview 6.0 555 KB
STM32 microcontroller debug toolbox 2.0 5 MB
STM32 microcontroller system memory boot mode 31.0 3 MB
STM32Cube firmware examples for STM32F0 Series 6.0 421 KB
STM32F0DISCOVERY peripheral firmware examples 3.1 511 KB
STM8S and STM32™ MCUs: a consistent 8/32-bit product line for painless migration 1.3 212 KB
Sampling capacitor selection guide for MCU based touch sensing applications 3.0 208 KB
Tuning a STMTouch-based application 3.0 783 KB
Two or three shunt resistor based current sensing circuit design in 3-phase inverters 1.6 1 MB
USART protocol used in the STM32 bootloader 7.0 617 KB
Using STM32 device PWM shut-down features for motor control and digital power conversion 4.0 834 KB
Using STM32F05xx analog comparators in application cases 1.1 238 KB
Using the STM32F0xx DMA controller 1.1 89 KB
Using the hardware real-time clock (RTC) in STM32 F0, F2, F3, F4 and L1 series of MCUs 5.1 421 KB
Using the hardware real-time clock (RTC) in low-power modes with STM32 microcontrollers 3.0 1 MB
Virtually increasing the number of serial communication peripherals in STM32 applications 1.1 338 KB
Technical Notes & Articles
Description Version Size
Description of WLCSP for microcontrollers and recommendations for its use 4.0 1 MB
How to use EWARM 6.2x with projects built with EWARM 6.1 and previous versions 1.2 97 KB
Tape and reel shipping media for STM32 microcontrollers in BGA packages 2.1 745 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in FPN packages 3.0 753 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in QFP packages 3.0 830 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in SO packages 1.0 755 KB
Tape and reel shipping media for STM8 and STM32 microcontrollers in TSSOP and SSOP packages 1.0 743 KB
Reference Manuals
Description Version Size
STM32F0x1/STM32F0x2/STM32F0x8 advanced ARM®-based 32-bit MCUs 9.0 13 MB
Programming Manuals
Description Version Size
STM32F0xxx Cortex-M0 programming manual 1.1 822 KB
Errata Sheets
Description Version Size
STM32F051x4/x6/x8 device limitations 4.0 466 KB
Device Option Lists
Description Version Size
STM32F051 64 Kbytes - option list 1.0 1 KB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
STM32F0 CAD Symbol and Footprint files 1.1 2 MB
STM32F0 IBIS models 1.0 8 MB
STM32F0 System View Description 1.3 211 KB

Presentations & Training Material

Presentations
Description Version Size
Discover the STM32 with a free 32-bit Cortex-M0/0+ MCU Professional Developer’s Package: FAQ 1.0 290 KB
Discover the STM32 with a free 32-bit Cortex-M0/0+ MCU Professional Developer’s Package: Webinar Presentation 1.0 4 MB
Getting started with STM32F0 or STM32L0 series 1.0.0 606 KB
STM32 - 32-bit ARM Cortex-M MCUs 3.0 1 MB
STM32 and STM8 Functional Safety Packages 2 1 MB

Publications and Collaterals

Flyers
Description Version Size
Get ready for the largest IoT development ecosystem 17.02 741 KB
STM32 Nucleo boards - Unified scalable offering 17.11 1 MB
STM32 for makers - Releasing your creativity 17.06 2 MB
Brochures
Description Version Size
STM32 32-bit MCU family - Leading supplier of ARM® Cortex®-M microcontrollers 17.10 2 MB
STM32F0 Series - Mainstream 32-bit MCUs 17.07 1 MB
STM32F3 series - Mainstream 32-bit MCUs 17.09 2 MB

Quality & Reliability

Product Certifications
Description Version Size
STM32 CAN conformance test authentication sheet 1.0 182 KB

Tools and Software

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Software Development Tools
Embedded Software
MCUs Embedded Software
Evaluation Tools
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Support & Community


Sample & Buy

Part Number Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STM32F051K4T6TR LQFP 32 7x7x1.4 Tape And Reel -40 85 Active 1.036 10000 NEC 3A991A2 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
STM32F051K4U6 UFQFPN 32 5x5x0.55 Tray -40 85 Active 0.971 10000 NEC 3A991A2 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
STM32F051K4U6TR UFQFPN 32 5x5x0.55 Tape And Reel -40 85 Active 0.971 10000 NEC 3A991A2 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
STM32F051K4U7 UFQFPN 32 5x5x0.55 Tray -40 105 Active 1.04 10000 NEC 3A991A2 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
STM32F051K4U7TR UFQFPN 32 5x5x0.55 Tape And Reel -40 105 Active 1.04 10000 NEC 3A991A2 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
STM32F051K4T6 LQFP 32 7x7x1.4 Tray -40 85 Active 1.036 10000 NEC 3A991A2 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STM32F051K4T6TR ActiveLQFP 32 7x7x1.4IndustrialEcopack2 0 0
STM32F051K4U6 ActiveUFQFPN 32 5x5x0.55IndustrialEcopack2 0 0
STM32F051K4U6TR ActiveUFQFPN 32 5x5x0.55IndustrialEcopack2 0 0
STM32F051K4U7 ActiveUFQFPN 32 5x5x0.55IndustrialEcopack2 0 0
STM32F051K4U7TR ActiveUFQFPN 32 5x5x0.55IndustrialEcopack2 0 0
STM32F051K4T6 ActiveLQFP 32 7x7x1.4IndustrialEcopack2 0 0
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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