Nordic Semiconductor nRF52820
nRF52820 - Bluetooth 5.2 SoC with built-in USB supporting Bluetooth Low Energy, Bluetooth mesh, Thread and Zigbee

The nRF52820 is a System-on-Chip (SoC) offering USB and advanced wireless connectivity in a small package, for HID, smart home, commercial, and industrial applications.
The nRF52820 features an Arm Cortex-M4 processor, clocked at 64 MHz. It has 256 KB Flash and 32 KB RAM, and a range of analog and digital interfaces such as an analog comparator, UART, SPI, TWI, QDEC, and last but not least, USB. It can be supplied with a voltage from 1.7 to 5.5 V which enables powering the device from sources such as rechargeable batteries or via USB. The 2.4 GHz multiprotocol radio is fully featured and provides up to +8 dBm output power.
nRF52820 supports all Bluetooth Low Energy features, including Direction Finding, high-throughput 2 Mbps, Long Range, and all Bluetooth 5.2 features. It also supports Bluetooth mesh, Thread and Zigbee mesh protocols.
The nRF52820's USB peripheral implements a Full Speed USB 2.0 device that offers a widely-used interface that enables low-latency and high-bandwidth communication with a range of hosts, such as PCs, tablets, smartphones, and gateways. It also adds the option of performing device firmware updates (DFU) over USB. When connected to a USB host, the nRF52820 can be directly powered by the always-present 5 V VBUS signal.
The nRF52820 is supported by three Bluetooth LE protocol stacks, SoftDevice S112, S122 and S140. SoftDevice S122 is a new memory-optimized central stack, released as an alpha for the nRF52820. The nRF52833 DK is the recommended development kit, it emulates the nRF52820, and can be used as a starting point for development before moving over to a custom board.
Key features
- 64 MHz Arm Cortex-M4
- 256 KB Flash, 32 KB RAM
- 2 Mbps, 1 Mbps, Long Range
- Bluetooth Low Energy
- Bluetooth Direction Finding
- Bluetooth mesh
- Thread, Zigbee
- +8 dBm TX power
- 128-bit AES
- UART, SPI, TWI, QDEC
- Full Speed USB 2.0
- -40 to 105 °C extended temperature range
- 1.7 to 5.5 V supply voltage
Applications
- Advanced beacons
- HID
- Bluetooth LE USB dongle
- Bluetooth LE mouse
- Bluetooth LE keyboard
- Smart home
- Mesh networks
- Professional lighting
- Asset tracking
- Real-time locating systems
- Network processor
- Gateways
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