BlueNRG SoCs: Bluetooth 5.2, Ultra-Low Power.pdf

The BlueNRG-LP is an ultra-low power programmable Bluetooth Low Energy wireless SoC solution that embeds STMicroelectronics's state-of-art 2.4 GHz RF radio IPs. It supports Bluetooth 5.2 specifications, including 2 Mbps data rate, long range (Coded PHY), and advertising extensions. The device has a Cortex-M0+ microcontroller that can operate up to 64 MHz and a BlueNRG core coprocessor for Bluetooth Low Energy timing critical operations.

The BlueNRG-LP provides enhanced security hardware support, including a true random number generator, encryption AES maximum 128-bit security co-processor, public key accelerator, CRC calculation unit, and 64-bit unique ID. It also features a 12-bit ADC, allowing measurements of up to eight external sources and up to three internal sources, including battery monitoring and a temperature sensor.

The device has a low-power RTC and one advanced 16-bit timer. It features standard and advanced communication interfaces, including 1x SPI, 2x SPI/I2S, 1x LPUART, 1x USART supporting ISO 7816 (smartcard mode), IrDA and Modbus mode, 2x I2C supporting SMBus/PMBus, and 1x channel PDM.

The BlueNRG-LP operates in the -40 to +105 °C temperature range from a 1.7 V to 3.6 V power supply. It integrates a high efficiency SMPS step-down converter and an integrated PDR circuitry with a fixed threshold that generates a device reset when the VDD drops under 1.65 V.

The device comes in different package versions, supporting up to 32 I/Os for the QFN48 package, 20 I/Os for the QFN32 package, and 30 I/Os for the WCSP49 package. It is suitable for industrial, home and industrial automation, smart lighting, fitness, wellness and sports, healthcare, consumer medical, security/proximity, remote control, assisted living, mobile phone peripherals, and PC peripherals applications.