Key Features

• Ultra-low-power platform
  • 1.65 V to 3.6 V power supply
  • -40 to 125 °C temperature range
  • 0.29 μA Standby mode (3 wakeup pins)
  • 0.43 μA Stop mode (16 wakeup lines)
  • 0.86 μA Stop mode + RTC + 20 KB RAM retention
  • Down to 93 μA/MHz in Run mode
  • 5 μs wakeup time (from Flash memory)
  • 41 μA 12-bit ADC conversion at 10 ksps
• Core: ARM? 32-bit Cortex?-M0+ with MPU
  • From 32 kHz up to 32 MHz max.
  • 0.95 DMIPS/MHz
• Memories
  • Up to 192 KB Flash memory with ECC (2 banks with read-while-write capability)
  • 20KB RAM
  • 6 KB of data EEPROM with ECC
  • 20-byte backup register
  • Sector protection against R/W operation
• Up to 84 fast I/Os (78 I/Os 5V tolerant)
• Reset and supply management
  • Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
  • Ultra-low-power POR/PDR
  • Programmable voltage detector (PVD)
• Clock sources
  • 1 to 25 MHz crystal oscillator
  • 32 kHz oscillator for RTC with calibration
  • High speed internal 16 MHz factory-trimmed RC (+/- 1%)
  • Internal low-power 37 kHz RC
  • Internal multispeed low-power 65 kHz to 4.2 MHz RC
  • Internal self calibration of 48 MHz RC for USB
  • PLL for CPU clock
• Pre-programmed bootloader
  • USB, USART supported
• Development support
  • Serial wire debug supported
• LCD driver for up to 4x52 or 8x48 segments
  • Support contrast adjustment
  • Support blinking mode
  • Step-up converted on board
• RICh Analog peripherals
  • 12-bit ADC 1.14 Msps up to 16 channels (down to 1.65 V)
  • 2 x 12-bit channel DACs with output buffers (down to 1.8 V)
  • 2x ultra-low-power comparators (window mode and wake up capability, down to 1.65 V)
• Up to 24 capacitive sensing channels supporting touchkey, linear and rotary touch sensors
• 7-channel DMA controller, supporting ADC, SPI, I2C, USART, DAC, Timers
• 11x peripheral communication interfaces
  • 1x USB 2.0 crystal-less, battery charging detection and LPM
  • 4x USART (2 with ISO 7816, IrDA), 1x UART (low power)
  • Up to 6x SPI 16 Mbits/s
  • 3x I2C (2 with SMBus/PMBus)
• 11x timers: 2x 16-bit with up to 4 channels, 2x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC, 2x 16-bit basic for DAC, and 2x watchdogs (independent/window)
• CRC calculation unit, 96-bit unique ID
• True RNG and firewall protection
• All packages are ECOPACK?2