STMicroelectronics STM32C051K8U3

The STM32C051x6/x8 mainstream microcontrollers are based on high-performance Arm^® Cortex^®-M0+ 32-bit RISC core operating at up to 48 MHz frequency. Offering a high level of integration, they are suitable for a wide range of applications in consumer, industrial and appliance domains and ready for the Internet of Things (IoT) solutions.

The devices incorporate a memory protection unit (MPU), high-speed embedded memories (12 Kbytes of SRAM and up to 64 Kbytes of flash program memory with read and write protection, and securable area), DMA, an extensive range of system functions, enhanced I/Os, and peripherals. The devices offer standard communication interfaces (two I²Cs, two SPI / one I²S, and two USARTs), one 12-bit ADC (2.5 MSps) with up to 21 channels, a low-power RTC, an advanced control PWM timer, four general-purpose 16-bit timers, a 32-bit general-purpose timer, two watchdog timers, and a SysTick timer.

The devices operate within ambient temperatures from -40 to 125°C and with supply voltages from 2.0 V to 3.6 V. Optimized dynamic consumption combined with power-saving modes allows the design of low-power applications.

The devices are housed in packages with 15 to 48 pins.

• Includes ST state-of-the-art patented technology
• Core: Arm^® 32-bit Cortex^®-M0+ CPU, frequency up to 48 MHz
  
• -40°C to 85°C/105°C/125°C operating temperature
• Memories
  • Up to 64 Kbytes of flash memory with protection and securable area
  • 12 Kbytes of SRAM with hardware parity check
• CRC calculation unit
• Reset and power management
  • Voltage range: 2.0 V to 3.6 V
  • Power-on / power-down reset (POR/PDR)
  • Programmable brownout reset (BOR)
  • Low-power modes: Sleep, Stop, Standby, Shutdown
• Clock management
  • 4 to 48 MHz crystal oscillator
  • 32 kHz crystal oscillator with calibration
  • Internal 48 MHz RC oscillator (±1 %)
  • Internal 32 kHz RC oscillator (±5 %)
• Up to 45 fast I/Os
  • All mappable on external interrupt vectors
  • All 5 V-tolerant
• 5-channel DMA controller with flexible mapping
• 12-bit, 0.4 µs ADC (up to 19 ext. channels)
  • Conversion range: 0 to 3.6 V
• 9 timers: 16-bit for advanced motor control, one 32-bit timer and four 16-bit general-purpose, two watchdogs, SysTick timer
• Calendar RTC with alarm
• Communication interfaces
  • Two I²C-bus interface supporting Fast-mode Plus (1 Mbit/s) with extra current sink; one supporting SMBus/PMBus™ and wake-up from Stop mode
  • Two USARTs with master/slave synchronous SPI; one supporting ISO7816 interface, LIN, IrDA capability, auto baud rate detection and wake-up feature
  • Two SPIs (24 Mbit/s) with 4- to 16-bit programmable bitframe, one multiplexed with I²S interface; two extra SPIs through USARTs
• Development support: serial wire debug (SWD)
• 96-bit unique ID
• All packages ECOPACK 2 compliant