QN9021/D

The NXP Semiconductors QN9021/D is an ultra-low-power, highly integrated Bluetooth LE System-on-Chip (SoC) solution. It is designed for Bluetooth Smart applications, including wearable electronics, sports and fitness devices, and app-enabled smart accessories. This SoC integrates a 2.4 GHz RF transceiver with a 32-bit ARM Cortex-M0 MCU, flash memory, and analog and digital peripherals.

Key electrical specifications include a frequency band of 2.4GHz, a maximum data rate of 1Mbps, and an output power of 4dBm. It offers a sensitivity of -95dBm and operates within a supply voltage range of 2.4V to 3.6V. The device features 128kB of Flash memory and 96kB of ROM, along with various serial interfaces such as ADC, GPIO, I2C, PWM, SPI, and UART, providing 15 GPIO pins.

The QN9021/D supports both master and slave modes and is compliant with Bluetooth v4.2. It operates within an ambient temperature range of -40°C to 85°C. The SoC is available in a 32-VFQFN Exposed Pad package, suitable for surface mounting.

This single-chip solution simplifies the addition of Bluetooth Smart features to products, enabling flexible and easy-to-use wireless MCU solutions. It is particularly well-suited for battery-operated systems requiring long life due to its very low power consumption.