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The N32WB031 series Bluetooth chip is the next generation of high-performance, ultra-low-power Bluetooth 5.1 chips developed by NSING. It features a 32-bit Arm® Cortex®-M0 core with a maximum operating frequency of 64 MHz, and integrates 48 KB SRAM and 256/512 KB Flash on-chip. The chip includes an advanced BLE 5.1 RF transceiver, compliant with the Bluetooth BLE 5.1 specification. It can be configured for standard 1 Mbps BLE mode, 2 Mbps enhanced BLE mode, 125 Kbps BLE long-range mode (S8), and 500 Kbps BLE long-range mode (S2). It supports AoA (Angle of Arrival) and AoD (Angle of Departure), RSSI (Received Signal Strength Indicator), both master and slave roles, multiple connections, extended packet length, KEYSCAN, IRC, 10-bit 1.33 Msps ADC (configurable to 16-bit 16 Ksps), analog MIC input, PGA amplification, and a variety of peripherals including basic, general, and advanced timers, RTC, WWDG, IWDG, LPUART, USART, SPI, and I2C.

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Main Features

• Core CPU

- 32-bit Arm® Cortex®-M0 core

- Maximum frequency of 64 MHz

• Storage

- 48 KB SRAM

- 256 KB/512 KB Flash

• Power Consumption

- Receive current: 3.8 mA @ 3.3V

- Transmit current: 4.2 mA @ 0 dBm/3.3V

- Sleep mode (48 KB RAM retention): 1.4 μA

- PD mode: 130 nA

• RF Specifications

- BLE 1 Mbps receiver sensitivity: -94 dBm

- BLE 2 Mbps receiver sensitivity: -91 dBm

- Programmable transmitter power, up to +6 dBm

- Single-ended antenna port

• Clock

- HSE: 32 MHz external high-speed crystal

- LSE: 32.768 kHz external low-speed crystal

- HSI: 64 MHz internal high-speed RC

- LSI: 32 kHz internal low-speed RC

- Supports one clock output, configurable to different clocks, output after division

• Reset

- Supports power-on/off and external pin reset

- Supports watchdog reset

• Communication Interfaces

- USART interfaces, max rate 4 Mbps (configurable as ISO7816, IrDA, LIN)

- 1 LPUART interface, supports low-power features, max rate 9600 bps in sleep mode, supports low-power wakeup

- SPI interfaces, max rate 16 MHz, master/slave configurable, can be configured as I2S

- 1 I2C interface, max rate 1 MHz, master/slave configurable

• Timers and Counters

- 1 16-bit advanced timer, supports input capture, output compare, PWM output, and quadrature encoder input; 4 independent channels, 3 channels support 6 complementary PWM outputs

- 1 16-bit general-purpose timer, supports input capture, output compare, PWM output, single pulse output, with 4 independent channels

- 1 16-bit basic timer

- 1 24-bit SysTick

- 1 7-bit window watchdog (WWDG)

- 1 12-bit independent watchdog (IWDG)

• Analog Interfaces

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

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

- MIC BIAS voltage adjustable from 1.6V to 2.3V

• GPIO

• 21 GPIOs with multiplexing capability

- 1 high-speed 5-channel DMA controller

- 1 IR transmitter/receiver controller, supports any infrared remote control protocol

- 1 KEYSCAN module, supports 8/10/13 GPIOs configurable as 44/65/104 key functions

- RTC real-time clock, supports leap year calendar, alarm events, periodic wakeup

- Supports hardware CRC16 and CRC32 operations

• Operating Conditions

- Operating voltage range: 1.8V/2.32V to 3.6V

- Operating temperature range: -40°C to 85°C

- ESD: ±2 kV (HBM)

Typical Applications

Suitable for various applications including Bluetooth keys, Bluetooth voice remote controllers, OBU (On-Board Unit), data transmission modules, smart home lighting, indoor positioning, electric vehicle anti-theft devices, and more.

Technical Resources

Purchase/Apply for Evaluation Board

online purchase

Mass Production Debugging Tools

NS-Link-Pro

illustrate：NS-Link-Pro

online purchase

Technical Support

Should you have any questions, please feel free to contact us and we will reply to you as soon as possible.

supports@nsing.com.sg

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