2020.05.06

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PRODUCT SPECIFICATIONS

Product name

nRF52805

Product description

Bluetooth 5.2 SoC in a WLCSP optimized for small

two-layer PCB designs

Wireless protocol support

Bluetooth Low Energy/2.4 GHz proprietary

Radio frequency

2.4 GHz

Processor

64 MHz Arm Cortex-M4

Memory

192 KB Flash and 24 KB RAM

Analog interfaces

2-channel 12-bit ADC

Digital interfaces

UART/TWI/SPI

Security

128-bit AES

Operating temperature

-40°C to 85°C

Operating supply voltage

1.7-3.6 V

Antenna interface

Single-ended

Packaging options

2.48x2.46 mm WLCSP28 with 10 GPIOs

RoHS

TBD

OVERVIEW

The nRF52805 System-on-Chip (SoC) is the 7th addition to the industry-leading nRF52®

Series. It augments the already extensive collection of wireless SoCs 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, simple CE remotes, styluses and presenters. It can also be applied as a

network processor, allowing another MCU to leverage its connectivity.

The nRF52805 features an Arm® Cortex®-M4 processor, clocked at 64 MHz (144

CoreMark), with excellent efficiency (65 CoreMark/mA). 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 SoC's current draw is as little as 0.3

µA in System OFF

and 1.1

µA in System ON with 24 KB RAM retained and RTC running.

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, such as Enhanced ShockBurst (ESB). The radio has up to 4 dBm TX power

and -97 dBm sensitivity (1 Mbps Bluetooth LE). The radio draws only 4.6 mA in both TX

(0 dBm) and RX.

The nRF52805 is available in our smallest package, a 2.48x2.46 mm WLCSP package,

with 10 GPIOs. The package is optimized for two-layer PCBs, cutting cost significantly,

compared to four-layer PCBs. Nordic provides a 9.5x8.8 mm reference layout with all ten