nRF52805System on chip

Bluetooth 5.2 SoC in a WLCSP optimized for small two-layer PCB designs

The nRF52805 System-on-Chip (SoC) augments the industry-leading nRF52 Series with an SoC in a WLCSP optimized for small two-layer PCB designs, ideal for cost-constrained applications. It is the perfect choice for applications such as beacons, disposable medical devices, sensors, styluses and presenters.

The nRF52805 features an Arm® Cortex®-M4 processor, clocked at 64 MHz. It has 192 KB Flash and 24 KB RAM and integrates a range of analog and digital interfaces such as a 2-channel 12-bit ADC, SPI, UART, and TWI.

The nRF52805 is a Bluetooth 5.2 SoC supporting Bluetooth Low Energy and 2.4 GHz proprietary protocols. It is capable of Bluetooth high-throughput 2 Mbps, transferring data faster and more efficient, and Bluetooth channel selection algorithm #2 (CSA #2), improving coexistence and reducing interference. It also supports 2.4 GHz proprietary protocols. The radio has up to 4 dBm TX power and -97 dBm sensitivity (1 Mbps Bluetooth LE).

The nRF52805 is available in our smallest package, a 2.48x2.46 mm WLCSP, optimized for two-layer PCB designs. This enables designs that are small and low cost, attributes that are typically a design trade-off, since small designs typically require four-layer PCBs, which have significantly higher cost. We provide a 9.5x8.8 mm reference layout with all ten GPIOs available, requiring only 10 external passive components (inc. two crystal load capacitors).

The nRF52805 is supported by SoftDevice S112, and will be supported by SoftDevice S113. S112 and S113 are memory-optimized Peripheral-only Bluetooth Low Energy protocol stacks supporting up to 4 connections as a Peripheral concurrently with a Broadcaster. A guide on how to use nRF52805 with nRF5 SDK is available here. The nRF52 DK is the recommended development kit, it emulates the nRF52805, and can be used as a starting point for development before moving over to a custom board.

Download PDFDownload nRF52805 SoC product brief [PDF]

Key features
  • 64 MHz Cortex-M4
  • 192 KB Flash, 24 KB RAM
  • 2.4 GHz transceiver
  • 2 Mbps, 1 Mbps
  • Bluetooth Low Energy
  • +4 dBm TX power
  • -97 dBm RX sensitivity
  • 128-bit AES
  • UART, SPI, TWI
  • 12-bit ADC

Get an overview

Short-range wireless

Get an overview of the complete short-range wireless offering from Nordic Semiconductor

Development kit

Evaluate, prototype and develop with the nRF52805

nRF52 DK

The nRF52 DK is a Bluetooth LE and Bluetooth mesh development kit for the nRF52805, nRF52810 and nRF52832 SoCs.

Software development kit

nRF5 SDK

The Bluetooth LE and ANT software development kit

The nRF5 SDK is a high quality, thoroughly tested software development kit to accelerate your software development efforts for the nRF52 and nRF51 Series SoCs. It contains hundreds of useful firmware modules and examples to assist in building your application.
 

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