Overview
The nRF51822-QFAC-R7, produced by Nordic Semiconductor ASA, is a general-purpose, ultra-low power System-on-Chip (SoC) designed for Bluetooth Low Energy and 2.4 GHz proprietary wireless applications. This SoC is part of the nRF51 Series and is ideal for single-chip solutions or as a connectivity device in various wireless applications.
Key Specifications
| Specification | Details |
|---|---|
| Processor | 32-bit ARM Cortex-M0, 16 MHz |
| Memory | 256 kB / 128 kB Flash, 32 kB / 16 kB RAM |
| Radio Frequency | 2.4 GHz ISM band (2.40000 – 2.4835 GHz) |
| Data Rates | 250 kbps, 1 Mbps, 2 Mbps |
| Modulation | GFSK |
| Output Power | Programmable: +4 dBm to -20 dBm in 4 dB steps |
| Sensitivity | -93 dBm (Bluetooth Low Energy), -96 dBm at 250 kbps, -90 dBm at 1 Mbps, -85 dBm at 2 Mbps |
| Interfaces | UART, SPI, TWI, 10-bit ADC, Quadrature demodulator |
| Oscillators | 16 MHz crystal oscillator, 16 MHz RC oscillator, 32 kHz crystal oscillator, 32 kHz RC oscillator |
| Power Consumption | 0.6 µA (no RAM retention), 1.2 µA (8k RAM retention), 2.6 µA (all peripherals in IDLE mode) |
| Security | 128-bit AES ECB/CCM/AAR co-processor |
| GPIO | 31 configurable digital I/O pins |
| Package Options | 48-pin 6x6 QFN, Wafer Level Chip Scale Package (WLCSP), Thin-CSP |
Key Features
- Multiprotocol 2.4 GHz radio supporting Bluetooth Low Energy and proprietary protocols
- Ultra-low power consumption with various power modes
- Programmable output power from +4 dBm to -20 dBm
- Flexible and configurable 31-pin GPIO
- Full set of digital interfaces including SPI, TWI, and UART
- 10-bit ADC and quadrature demodulator
- 128-bit AES ECB/CCM/AAR co-processor for enhanced security
- Support for concurrent multi-protocol with 2.4 GHz proprietary protocols
- Wide supply voltage range (1.8 V to 3.6 V)
Applications
The nRF51822-QFAC-R7 is suitable for a wide range of wireless applications, including:
- Bluetooth Low Energy devices such as wearables, fitness trackers, and smart home devices
- 2.4 GHz proprietary wireless applications like wireless keyboards and mice
- IoT devices requiring low power and reliable wireless connectivity
- Health and fitness monitoring devices
- Industrial automation and control systems
Q & A
- What is the primary application of the nRF51822-QFAC-R7? The nRF51822-QFAC-R7 is primarily used for Bluetooth Low Energy and 2.4 GHz proprietary wireless applications.
- What processor does the nRF51822-QFAC-R7 use? It uses a 32-bit ARM Cortex-M0 processor running at 16 MHz.
- How much memory does the nRF51822-QFAC-R7 have? It has 256 kB / 128 kB Flash and 32 kB / 16 kB RAM.
- What are the supported data rates for the nRF51822-QFAC-R7? The supported data rates are 250 kbps, 1 Mbps, and 2 Mbps.
- What is the output power range of the nRF51822-QFAC-R7? The output power is programmable from +4 dBm to -20 dBm in 4 dB steps.
- What security features does the nRF51822-QFAC-R7 include? It includes a 128-bit AES ECB/CCM/AAR co-processor for enhanced security.
- What are the available package options for the nRF51822-QFAC-R7? The available package options include 48-pin 6x6 QFN, Wafer Level Chip Scale Package (WLCSP), and Thin-CSP.
- What is the power consumption of the nRF51822-QFAC-R7 in different modes? The power consumption is 0.6 µA (no RAM retention), 1.2 µA (8k RAM retention), and 2.6 µA (all peripherals in IDLE mode).
- Does the nRF51822-QFAC-R7 support concurrent multi-protocol operations? Yes, it supports concurrent multi-protocol operations with 2.4 GHz proprietary protocols.
- What development kits are available for the nRF51822-QFAC-R7? The nRF51 DK and nRF51 Dongle are available for development and prototyping.
