Description

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.

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

(Continue ...)