In this reference design, the peripherals work together with the auto-operation mode so the MCU can stay in normal power-down mode while still handling sensor data on its own, without needing the CPU to step in. This helps cut down power usage during operation and improves the system’s overall energy efficiency.

• Feature
  

  • Supports Auto-Operation Mode

  - Peripherals can continue operating even in Normal Power-Down mode

  - In Normal Power-Down mode, peripherals can automatically transfer sensor data to SRAM without CPU involvement.

  •Low power consumption and high performance

  - Auto-Operation Mode allows continuous data processing while staying in a power-saving state

  - Normal Power-Down mode supports a low-frequency clock source, which shortens the stabilization time required by high-precision sensors and reduces overall system power consumption

• Specifications
  

  M2U51 (32-bit Arm® Cortex®-M23)

  • Operating frequency up to 40 MHz

  • Low Power Consumption

  -Normal Run Mode

  -67.5 μA/ MHz (LDO mode)

  -36 μA/ MHz (DC-DC mode)

  -Normal Power-down Mode

  -< 4 μA with LCD charge pump operation

  -Standby Power-down Mode

  -0.4 μA with RAM retention

  • Operating Characteristics

  -Voltage Range: 1.75V to 5.5V

•  Specifications