Home | Products | NRC7292

Overview

As an optimized Wi-Fi solution for internet of things (IoT) devices, NRC7292 is industry’s first system on a chip (SoC) that is compliant with the IEEE 802.11ah standard. Operating in the Sub 1GHz license-exempt band, it offers a much greater range over 2.4GHz and 5GHz technologies. 1/2/4MHz channel widths with optional short guard interval (SGI) yield 150 Kbps to 15 Mbps PHY throughput which can support lowrate sensor to high-rate surveillance camera application. The protocol’s power-saving mechanisms like a longer sleep time greatly reduces power consumption and hence increase battery life.

The self-contained IEEE 802.11ah Wi-Fi networking capabilities with fully integrated radio transceiver of NRC7292 offers the ideal solution to add Wi-Fi connectivity to IoT products. It minimizes the PCB size, requires minimal external circuitries, and enables fast time-to-market.

The RF transceiver is a complete radio front-end optimized for Sub 1GHz band and it has fully integrated pre-power amplifiers as well as the capability to support various commercial external FEM device. With the dual embedded ARM Cortex-M0 and Cortex-M3 processor, NRC7292 can be used either as a standalone device or a slave to a host processor via serial peripheral interface (SPI) or universal asynchronous receiver transmitter (UART) interface. In addition, it can support both AP and STA roles.

Target Applications

  • IoT applications
  • Wearables
  • Home automation
  • Healthcare
  • Industrial automation
  • Safety and security
  • Smart grid
  • Multimedia streaming

NRC7292

Key Features

  • Complies with IEEE 802.11ah draft 8.0
  • Fully Integrated on-chip 11ah modem, RF transceiver, processor, and memory
  • Support 1/2/4 MHz bandwidth
  • Up to 15 Mbps data rate
  • Travelling pilot for Doppler spread
  • Low power mode operation
    • Legacy
    • WMM-PS
    • TWT
  • AES-CCMP security
  • Dedicated SPI and UART interface for host
  • Various peripheral interfaces for sensor device
  • Manufacturing tools for configuration and test
  • Diagnostic and DUT test tools for indoor and outdoor test

Specification

CPU

  • ARM Cortex-M3 for Application
  • ARM Cortex-M0 for WLAN
  • Mailbox for communication

Memory

  • 32KB Boot ROM for M0
  • 32KB Boot ROM for M3
  • 752KB System SRAM
  • XIP with cache (2 ways, 32KB)

Communication Peripherals

  • GPIO X 54
  • SPI X 4
  • UART X 4
  • I2C X 4
  • 9-bit ADC X

RF Transceiver

  • Single-ended RF ports
  • Frequency band: 750 to 950MHz
  • Linear TX output power: 0dBm
  • TX gain range: 30dB
  • RX noise figure: <4dB
  • Max. input level: -10dBm
  • 10bits ADC and DAC