Key Features

  • Arm® Cortex®-M23 Core @ 64 MHz
  • Single-cycle multiplication and hardware divider
  • Ultra-low power, energy-efficient operation
  • Excellent code density
  • Integrated Nested Vectored Interrupt Controller (NVIC)
  • 24-bit SysTick timer
  • Up to 256 Kbytes of Flash memory
  • Up to 32 Kbytes of SRAM with hardware parity checking
  • The deep-sleep current is reduced to 2µA, with the wake-up time achieving less than 10µs. And the standby current is as low as 0.4µA
  • Up to six low-power modes, including partial sleep, deep sleep, external wake-up, etc. Under the maximum frequency and full-speed active mode, the power consumption is only 66µA/MHz
  • 1x ADC with a 12-bit sampling rate of up to 1MSPS
  • 1x 12-bit DAC
  • 2x Comparators
  • Up to 2x USARTs
  • 2x UARTs
  • 1x Low-power LPUART
  • 3x I2Cs
  • 2x SPIs
  • 1x I2S
  • 1x USB 2.0 FS controller
  • 4x General-purpose 16-bit timers
  • 2x Basic timers
  • 1x 32-bit low-power timer
  • Multi-channel DMA selector module (DMAMUX)
  • Full-featured calendar RTC
  • Programmable voltage detector (PVD)
  • Programmable brown-out reset (BOR)
  • 1x LCD segment controller, which provides 8*28 segments and 4*32 segments in two formats
  • 1x High-precision temperature sensor with an accuracy of ±0.5°C