NRF51824-QFAA-R

RF Transceiver ICS Overview

The nRF51824-QFAA-R is an automotive-grade System on Chip (SoC) from Nordic Semiconductor, designed for Bluetooth Low Energy and 2.4 GHz proprietary wireless applications. It features a 32-bit ARM Cortex-M0 processor operating at 16 MHz, integrated with a flexible 2.4 GHz radio transceiver. The device includes 256 KB of flash memory and 16 KB of RAM. It supports Bluetooth Low Energy protocols up to version 4.2 and offers +4 dBm transmit power. The component is qualified to AEC Q100 Grade 2 standards and operates within an extended temperature range of -40°C to +105°C.

RF Transceiver ICS Feature Summary

• Automotive qualification compliant with AEC Q100 Grade 2 standards for reliable operation in vehicle environments.
• Integrated 2.4 GHz radio supporting Bluetooth Low Energy and proprietary protocols like Gazell.
• Built-in 128-bit AES CCM encryption engine for secure data communication.
• Programmable Peripheral Interconnect (PPI) system allows peripherals to interact directly without CPU intervention.

RF Transceiver ICS Applications

• Automotive Bluetooth Low Energy connectivity solutions
• In-vehicle 2.4 GHz proprietary wireless links
• Automotive sensor nodes requiring extended temperature tolerance

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'QFAA' corresponds to the QFN48 package variant and 'R' indicates reel packaging when sourcing. Confirm that the part meets AEC Q100 Grade 2 requirements for your specific automotive application tier. Check for any regional regulatory restrictions or supply chain notifications related to this discontinued series before finalizing procurement plans.

RF Transceiver ICS Selection Notes

Select this component only if automotive certification (AEC Q100) is mandatory for the project. Note that the nRF51 series is generally considered legacy; evaluate newer nRF52 or nRF54 series alternatives for enhanced performance, higher clock speeds, or additional protocol support unless specific legacy compatibility or cost constraints dictate otherwise.

RF Transceiver ICS Part Context

The nRF51824 is part of the nRF51 Series, which established Nordic's presence in the ultra-low power wireless market. This specific SoC is an automotive-grade variant of the general-purpose nRF51822, tailored for harsh environments. It serves as a foundational solution for early-generation automotive IoT and connectivity devices, preceding the more feature-rich nRF52 and nRF54 families.

RF Transceiver ICS Replacement Considerations

Public documentation suggests considering the nRF52840 Dongle or nRF51 DK for development purposes, but these are kits, not direct silicon replacements. For direct silicon substitution, newer Nordic Automotive SoCs such as those in the nRF53 or nRF54 series should be evaluated, though pin-to-pin compatibility is not guaranteed across different series generations.