Nordic Semiconductor, the wireless comms specialist, has expanded its nRF52 series with the nRF52805 Bluetooth 5.2 SoC.

Supplied in a wafer level chip scale package (WLCSP), it measures 2.48 x 2.46mm and is optimised for two-layer PCBs enabling designs that are small and low cost, says Nordic.

The nRF52805 includes a 64-MHz 32-bit Arm Cortex-M4 processor with 192KB Flash and 24KB RAM. The multiprotocol (Bluetooth LE/2.4GHz) radio offers up to +4dBm power output and -97dBm sensitivity (1 Mbps Bluetooth LE) for a link budget of 101dBm, says the company.

According to its spec, the radio’s peak power draw is 4.6mA (TX 0dBM, RX 1Mbps) and the SoC’s current draw is as low as 0.3µA in System OFF and 1.1µA in System ON with 24KB RAM retained and RTC running. The SoC can be powered from a 1.7 to 3.6V supply and integrates LDO and DC/DC voltage regulators.

It is capable of Bluetooth LE high-throughput 2 Mbps and enhanced Channel Selection Algorithm #2 (CSA #2) for improved coexistence.

There are a range of analogue and digital interfaces (SPI, UART, and TWI), a two-channel 12-bit ADC, and ten GPIOs.

“The nRF52805 extends the proven nRF52 Series family with a Bluetooth 5.2 solution in a WLCSP optimized for budget-constrained two-layer PCB designs,” says Kjetil Holstad, Director of Product Management with Nordic Semiconductor.

“The SoC brings a rare combination of size and cost enabling manufacturers to extend the nRF52 Series’ maturity and reliability to a whole new range of tiny and inexpensive wireless peripheral designs.”

The nRF52805 is now in volume production. The SoC is available in a 2.48 x 2.46mm WLCSP with 10 GPIOs.

You can read more about the nRF52805 on the Nordic Semi website.