NRF52820-CFAA-D-R

RF Transceiver ICS Overview

The NRF52820-CFAA-D-R is a System-on-Chip (SoC) from Nordic Semiconductor, integrating an Arm Cortex-M4 processor with a 64 MHz clock speed. It features 256 KB of flash memory and 32 KB of RAM. The device includes a 2.4 GHz multiprotocol radio supporting Bluetooth Low Energy v5.2, Thread, Zigbee, and Bluetooth Mesh, with up to +8 dBm output power and -95 dBm sensitivity. It offers Full Speed USB 2.0 connectivity and supports data rates up to 2 Mbps. The component operates within a voltage range of 1.7 V to 5.5 V and functions across an extended temperature range of -40°C to 105°C. It is housed in a 44-WLCSP package measuring 2.53x2.53 mm.

RF Transceiver ICS Feature Summary

• Integrates a 64 MHz Arm Cortex-M4 processor with 256 KB flash and 32 KB RAM for efficient processing.
• Supports multiple wireless protocols including Bluetooth LE v5.2, Thread, Zigbee, and Bluetooth Mesh via a 2.4 GHz radio.
• Features Full Speed USB 2.0 interface enabling low-latency communication and direct powering from 5 V VBUS.
• Includes hardware security with 128-bit AES encryption and supports Direction Finding capabilities.

RF Transceiver ICS Applications

• Human Interface Devices (HID)
• Smart home appliances
• Industrial IoT sensors
• Medical devices

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'CFAA' corresponds to the 44-WLCSP package variant when sourcing. Confirm that the '-D-R' designation aligns with the required tape-and-reel packaging format for automated assembly. Ensure compatibility with the nRF52833 DK development environment for initial prototyping and emulation before custom board deployment.

RF Transceiver ICS Selection Notes

Select this component for applications requiring compact form factors due to its small WLCSP footprint. It is suitable for designs needing versatile connectivity options combining wireless standards with wired USB interfaces. Consider its extended temperature range for industrial or outdoor deployments where environmental stability is critical.

RF Transceiver ICS Part Context

This part belongs to the nRF52 series, designed for low-power wireless applications. It serves as a cost-effective alternative to higher-end models like the nRF52840 while maintaining core connectivity features. The CFAA suffix specifically denotes the wafer-level chip scale package configuration, distinguishing it from QFN variants within the same SoC family.

RF Transceiver ICS Replacement Considerations

The nRF52820-QDAA-D-R is a public confirmed substitute offering identical functionality but in a 40-QFN package. Designers must account for pinout differences and PCB layout adjustments when transitioning between the WLCSP and QFN packages.

RF Transceiver ICS FAQ

Can the NRF52820-CFAA-D-R be powered directly via USB?

Yes, when connected to a USB host, the device can be powered directly by the 5 V VBUS signal present on the USB connection.

What wireless protocols are supported by this SoC?

It supports Bluetooth Low Energy v5.2, Bluetooth Mesh, Thread, and Zigbee mesh protocols over its 2.4 GHz radio.