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Nuvoton Launches the New NuMicro M031BT series: Low-power BLE 5.0 and 2.4G Dual-Mode MCU

Published: Jan 04,2021

HSINCHU, Taiwan - Nuvoton Technology launches a new NuMicro M031BT series: An low-power BLE 5.0 and 2.4GHz dual-mode microcontroller series by Arm Cortex-M0 core operating up to 48 MHz, with up to 128 KB Flash and 16 KB SRAM.

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In addition to the BLE 5.0 and 2.4GHz RF functions providing wireless connectivity, the NuMicro M031BT series built-in rich peripherals and analog functions applied to the applications that need advanced and precise control functions, such as industrial control that need wireless connectivity, sensor hubs in rigid working environments. The 5mm x 5mm QFN48 package greatly reduces the PCB size and RF layout difficulty. Nuvoton provides a reference design and rich sample codes to speed up the application development based on this M031BT low-power BLE/2.4G RF microcontroller.

The NuMicro M031BT series provides up to +8 dBm RF transmit power, a good receiving sensitivity of -94 dBm, 1 Mb/s, or 2 Mb/s transmission speed RF applications, and outstanding anti-noise performance in 2.4GHz interference environments to ensure communication distance and reliability. With these, the M031BT series are expected to meet the needs of application scenarios such as industrial Internet of Things (IIoT), smart home, consumer electronics, etc.

The NuMicro M031BT series operates from 1.8V to 3.6V. It features a built-in 32-bit hardware divider, up to 5-channel PDMA, a 16-channel 12-bit 2 MSPS high sampling rate ADC that can run down to 1.8V low voltage, and 12-channel PWM running up to 96 MHz that can quickly respond and accurately control external devices. Besides, the M031BT also provides many peripherals such as one set of 24 MHz SPI/I2S, three sets of 6 MHz UART supporting single-wire transmission, two sets of I2C, and one set of highly flexible universal serial control interface (USCI) that can be configured as UART, I2C or SPI.

To protect the intellectual property rights, the NuMicro M031BT series is embedded with an additional security protection Flash block (Security Protection ROM, SPROM) to provide an independent and secure encrypted execution area to protect critical program code. Flash lock bits are designed to provide firmware to prevent external access or write protection. A 96-bit unique chip identification (Unique Identification, UID) and a 128-bit unique customer identification (UCID) on each M031BT significantly improves product confidentiality and code security.

Nuvoton provides complete development tools, such as the NuMaker-M031BT evaluation board, software development kits, and sample codes, as well as free downloadable Keil MDK to speed up the end-product evaluation and development cycle.

The NuMicro M031BT series is now available for 5mm x 5mm QFN48 package.

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