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Mainstream Arm Cortex-M0 Access line MCU with 64 Kbytes of Flash memory, 48 MHz CPU, motor control and CEC functions

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Parameter NameParameter Value
Supply Voltage Min Volt2.0
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius105.0
CoreArm Cortex-M0
ECCN US3A991.a.2
Packing TypeTape And Reel
RoHs compliantEcopack2
Package NameUFBGA 64 5x5x0.6 P 0.5 mm

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 VDDto 3.6 V
    • Power-on/Power down reset (POR/PDR)
    • Programmable voltage detector (PVD)
    • Low power modes: Sleep, Stop, Standby
    • VBATsupply 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