nRF52840 es totalmente compatible con múltiples protocolos, incluidos BLE 5, malla Bluetooth , hilo, ZigBee , 802.15.4, ant y pila de protocolos patentados de 2,4 GHz.

El SoC nRF52840 se basa en una CPU arm ® cortex ™ - M4 de 32 bits, con una unidad de punto flotante de 64 MHz, que tiene suficiente capacidad de procesamiento general, operación de punto flotante y rendimiento DSP para cumplir con los exigentes requisitos de las aplicaciones inalámbricas. Dispone de etiquetas NFC-a para simplificar las soluciones de emparejamiento y pago. La unidad de cifrado de celdas criptográficas TrustZone ® arm incluida en el chip proporciona una variedad de opciones de cifrado que se ejecutan de manera eficiente independientemente de la CPU.

El SoC nRF52840 tiene muchos periféricos e interfaces digitales, como SPI y QSPI de 32 MHz de alta velocidad, para conectar una memoria flash externa y una pantalla; PDM e I²S (para audio y micrófono digital), dispositivo USB de 12 Mbps de máxima velocidad para transmisión de datos y carga de batería.

El dispositivo SoC nRF52840 adopta una nueva arquitectura de radio, con PA integrado, potencia de transmisión de hasta + 8 DBM, flash integrado de 1 MB y ram de 256 KB, totalmente compatible con BLE 5, 802.15.4 (incluido el hilo), hormiga y tecnología inalámbrica privada de 2,4 GHz, con un controlador USB 2.0 de máxima velocidad y una serie de dispositivos periféricos que incluyen una interfaz SPI de cuatro canales. nRF52840 también puede usar una fuente de alimentación de más de 5 V, como la energía de la batería recargable.

nRF52840 tiene dos paquetes: 7 x 7 aqfn73 con 48 gpios y 3.5 x 3.6 wlcsp94 con 48 gpios.

In addition, nrf52840 also has an arm ® encryption accelerator built in to achieve peer-to-peer security based on Cortex-M SOC. Cryptocell provides a wide range of password and security functions, which are used to build entity security into applications from the beginning to the end. Compared with the CPU's equivalent operation in the software, crypto cell can also make related security operations run faster and use less processing time and power.

nRF52840 is an advanced and highly flexible single-chip solution, which is suitable for today's increasingly demanding ULP wireless applications, for our personal devices, living environment, and the Internet of things. It is designed to prepare for the major functional advances of ble 5 and to take advantage of the enhanced performance of ble 5, including remote and high performance. In today's applications, industrial-level security is essential.

A wide range of peripherals can utilize many high-performance digital interfaces, such as high-speed SPI (32 MHz) and four-level SPI (32 MHz), allowing direct interface to displays and external storage sources. Nrf52840 can supply voltage from 5.5V to 1.7V, allowing direct power supply from a rechargeable battery and USB power supply.

nRF52840 is ready to take advantage of the ble 5 technology to improve its performance. Most importantly, it supports a wider range (up to X4 compared with ble 4. X) and doubles the air data rate from 1Mbps in ble 4. X to 2Mbps.

nRF52840 is a certified component, so it is an ideal choice for home networking products using a thread grid stack. Wireless networks support the 802.15.4 physical layer and MAC layer and are suitable for other stacks of 802.15.4, such as ZigBee.

The multi-protocol modules with nRF52840 SoC, for example, RF-BM-ND05 and RF-BM-ND06 developed by RF-star can be applied to a wide range of applications. These nRF52840 modules with their outstanding performance have been used in wearable devices with wireless payment features, NFC payment, and customized applications.