Nordic Semiconductor (www.nordicsemi.com) has launched a new 'nRF52820 Bluetooth 5.2 System-on-Chip', the sixth addition to its nRF52 series.
The nRF52820 is a low-end wireless connectivity solution that supports Bluetooth mesh, thread, ZigBee and proprietary 2.4GHz, including ultra-low-power Bluetooth Low Energy (LE). The nRF52820 supports all features of Bluetooth 5, 5.1 and 5.2, including long reach, fast transmission speed of 2 Mbps, direction detection and LE power control, and LE synchronous channels. The SoC also includes a full speed (12Mbps) USB 2.0 interface.
Based on the powerful 64MHz 32bit Arm Cortex-M4 processor, the nRF52820 has 256KB flash and 32KB RAM, enabling a single chip option to support a variety of commercial and industrial wireless applications such as professional lighting, asset tracking, HID and gaming devices.
In addition, when the nRF52820's multiprotocol wireless function and + 8dBm output power are used with an application MCU, it can function as a network processor in gateways and smart home applications that require advanced wireless connectivity. The nRF52820 supports an extended industrial operating temperature range from -40 ° C to 105 ° C, making it suitable for commercial and industrial applications including professional lighting.
Full speed (12Mbps) USB operation is a key feature of the nRF52820. USB is a widely used connection interface that enables low-latency, high-bandwidth communication with various host devices such as PCs, smartphones, and gateways. In addition, device firmware update (DFU) can be supported through USB, making it more practical. The nRF52820's USB peripheral also includes a main power supply regulator, as well as a dedicated regulator that converts the 5V VBUS signal to the 3.3V required for the USB signal interface, reducing the cost and space of an external regulator.
The nRF52820 includes up to 18 GPIOs and analog comparators and various analog and digital interfaces such as SPI, UART, TWI and QDEC. Since the supply voltage can cover the 1.7V to 5.5V input range, the nRF52820 can be powered through a coin cell or a rechargeable battery. When connected to a USB host, the nRF52820 can be powered directly via a 5V VBUS signal that is always maintained. Nordic provides a reference layout for this configuration.
The nRF52820 is supported through S112 and S140 soft devices (Bluetooth 5.1 authentication protocol stack) and S122 (alpha version) soft devices. The S112 is a memory-optimized peripheral stack, and the S122 is a central stack. The S140 is a protocol stack that supports all Bluetooth 5 functions for central and peripheral devices, and supports long reach and fast data transfer rates of 2Mbps. firstname.lastname@example.org