NRF51422-QFAC-R

RF Transceiver ICS Overview

The NRF51422-QFAC-R is a Bluetooth Smart System-on-Chip from Nordic Semiconductor, designed for cost and power-sensitive applications. It integrates a 32-bit ARM Cortex-M0 processor with 256kB of Flash memory and 32kB of RAM. The device features a 2.4 GHz radio supporting BLE and ANT protocols. It operates within a voltage range of 1.8V to 3.6V and supports up to 31 I/O pins. The unit is housed in a 48-pin QFN package measuring 6mm x 6mm with a height of 0.9mm. It functions reliably between -25°C and +75°C.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M0 microcontroller with substantial non-volatile storage and data memory for complex application logic.
• Supports concurrent operation of Bluetooth Low Energy and ANT protocols via dedicated softdevice stacks.
• Includes a high-performance 2.4 GHz transceiver optimized for ultra-low power wireless communication.
• Provides extensive general-purpose input/output capabilities for peripheral integration.

RF Transceiver ICS Applications

• Motion, fitness, and health sensors requiring low power consumption
• Beacon devices utilizing ANT+ or BLE connectivity
• Wearable electronics with strict size constraints
• Smart home accessories using multi-protocol wireless links

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'QFAC' against official Nordic documentation to confirm pre-programmed protocol stack inclusion. Ensure the reel quantity matches project requirements. Confirm that the operating temperature range meets environmental specifications. Validate pinout compatibility with existing PCB layouts. Check for end-of-life status or alternative recommendations from the manufacturer.

RF Transceiver ICS Selection Notes

Choose this component when both BLE and ANT support are required on a single chip. It is suitable for applications needing more memory than base nRF51 models offer. Select this variant if a pre-loaded ANT stack reduces development time. Consider it for designs prioritizing small form factor and low active current. Evaluate thermal performance within the specified operating range.

RF Transceiver ICS Part Context

This SoC belongs to the nRF51 series, targeting the wearable and sensor market segment. It shares architectural similarities with the nRF51822 but includes specific firmware optimizations. The device enables developers to create compact wireless solutions without external radios. It serves as a foundation for ANT+ certified products and BLE beacons.

RF Transceiver ICS Replacement Considerations

The nRF51422-QFAA-T is a comparable variant with identical electrical characteristics. Verify if the tape-and-reel packaging option suits production volume needs. Both parts share the same core functionality and pinout configuration. Consult Nordic's product change notification system for any updates.