Main features

－  Kernel CPU

•  32-bit Arm® Cortex®-M0 core

•  The highest main frequency is 64MHz

－  Storage 

•  48K+16K bytes SRAM

• 512K bytes Flash

－  Power consumption

•  Receive current:3.8mA @3.3V 3.8mA @3.3V

•  Emission current: 4.2mA @0dBm/3.3V

•  Sleep mode (48KB RAM hold): 1.4μA

•  PD mode: 130nA

－  RF specifications

•  BLE 1Mbps Receive Sensitivity: -94dBm

•  BLE 2Mbps Receive Sensitivity: -91dBm

•  Programmable transmitter power, maximum +6dBm

•  Single-ended antenna port

－  Clock

•  HSE: 32MHz external high-speed crystal

•  LSE: 32.768KHz external low-speed crystal

•  HSI: Internal high-speed RC 64MHz

•  LSI: Internal low speed RC 32KHz

•  Supports 1 clock output, can be configured as different clocks, and output after frequency division

－  Reset

•  Supports power-on/external pin reset

•  Support watchdog reset

－  Communication interface

•  2 USART interfaces, maximum speed of 4 Mbps (can be configured as ISO7816, IrDA, LIN)

•  1 LPUART interface, supports low power consumption characteristics, the maximum communication rate in Sleep mode is 9600bps, supports low power wake-up

•  2 SPI interfaces, maximum speed of 16MHz, can be configured as I2S

•  1 I2C interface, maximum speed of 1MHz, master-slave mode can be matched

－  Timer counter

•  1 16-bit advanced timing counter, supporting input capture, output comparison, PWM output and orthogonal coded input functions; there are 4 independent channels, of which 3 channels support 6 complementary PWM outputs

•  1 16-bit universal timing counter, supports input capture, output comparison, PWM output, single pulse output, and has 4 independent channels

•  1 16-bit basic timing counter

•  1 24-bit SysTick

•  1 7-bit window watchdog (WWDG)

•  1 12-bit independent watchdog (IWDG)

－  Analog interface

•  1 10-bit 1.33Msps high-speed ADC (configurable as 16-bit 16Ksps), supports 5 external single-ended channels, 1 differential MIC channel, and 2 internal channels

•  Built-in PGA, supports 0dB-42dB gain adjustable

•  MIC BIAS voltage supports 1.6V-2.3V adjustable

－  21 GPIOs that support multiplexing

－  1 high-speed 5-channel DMA controller

－  1 IR sending and receiving controller, supporting any infrared remote control protocol

－  1 KEYSCAN module, supports 8/10/13 GPIOs, which can be configured as 44/65/104 button functions

－  RTC real-time clock, supports leap year perpetual calendar, alarm clock events, periodic wake-up

－  Supports hardware CRC16 and CRC32 operations

－  Working conditions

•  Operating voltage range: 1.8V/2.32V~3.6V

•  Working temperature range: -40℃~85℃

•  ESD：±2kV(HBM)

Typical Applications

N32WB031 series Bluetooth chips are suitable for various application scenarios such as Bluetooth KEY, Bluetooth voice remote control, OBU, digital transmission module, smart home lighting, indoor positioning, electric vehicle anti-theft device, etc.