SiWx917 Wi-Fi 6 plus Bluetooth Low Energy (LE) 5.4 SoCs

Coming Soon

Our SiWx917 SoC is our lowest power Wi-Fi 6 SoC, ideal for ultra-low power IoT wireless devices using Wi-Fi®, Bluetooth, Matter, and IP networking for secure cloud connectivity. It is optimal for developing battery operated devices that need long battery life. SiWx917 SoC includes an ultra-low power Wi-Fi 6 plus Bluetooth Low Energy (LE) 5.4 wireless CPU subsystem, and an integrated micro-controller (MCU) application subsystem, security, peripherals and power management subsystem all in a single 7x7 mm QFN package. The wireless subsystem consists of a multi-threaded processor (ThreadArch®) running up to 160 MHz, baseband digital signal processing, analog front end, 2.4 GHz RF transceiver and integrated power amplifier. The application subsystem consists of an ARM® Cortex®-M4F running up to 180 MHz, embedded SRAM, FLASH, AI/ML accelerator and enhanced PSA-L2 certifiable security engine. The ARM® Cortex®-M4F is dedicated for peripheral and application-related processing, while the ThreadArch® runs the wireless and networking stacks on independent threads, thus providing a fully integrated solution that is ready for a wide range of embedded wireless IoT applications.

Target applications include Smart Homes, Consumer Health and Wearables, Medical, Industrial, Retail, Smart Building and Cities, Asset Tracking.

Wi-Fi 6 and Bluetooth LE 5.4, Matter ready, ultra-low power, secure wireless radio
Integrated MCU, AI/ML Accelerator
ARM® Cortex®-M4 processor with FPU, Matrix Vector Processor (MVP)

SiWx917 Common Specs

Ultra-Low Power Wireless System on a Chip

  • Wi-Fi 6 Single band 2.4 GHz and Bluetooth Low Energy 5.4 wireless radio
  • ARM® Cortex®-M4F Application MCU up to 180 MHz
  • Integrated baseband processor, RF transceiver, high-power amplifier, balun and T/R switch
  • Integrated AI/ML accelerator using matrix vector processor (MVP)
  • Embedded SRAM up to 672 KB
  • Embedded Flash up to 8 MB and supports opt external Flash
  • Embedded pSRAM up to 8 MB and supports Opt external pSRAM
  • Integrated Wi-Fi stack, TCP/IP stack, Bluetooth stack supporting wireless coexistence and Matter

Wi-Fi 6

  • Compliant to to 2.4 GHz, single-spatial stream IEEE 802.11 b/g/n/ax
  • Supports 802.11ax 20 MHz features such as OFDMA, MU-MIMO, and Target Wake Time (TWT)
  • Transmit power up to +21 dBm with integrated PA
  • Receive sensitivity as low as -98.5 dBm
  • Data Rates: up to 86 Mbps (802.11ax MCS0 to MCS7)
  • Operating frequency range: 2412 MHz - 2484 MHz

Bluetooth Low Energy 5.4

  • Transmit power up to +21 dBm with integrated PA
  • Receive sensitivity: LE: -95 dBm, LR 125 Kbps: -106 dBm
  • Operating frequency range: 2402 MHz - 2480 MHz
  • Bluetooth Low Energy 1 Mbps, 2 Mbps and Long-Range modes (125 kbps, 500 kbps)

Microcontroller Subsystem

  • ARM® Cortex®-M4F core with up to 180 MHz
  • Integrated FPU, MPU, and NVIC
  • In-System Programming (ISP) and Over-the-Air (OTA) wireless firmware update
  • Power-On Reset (POR), Brown/Black-out and Black-out Detection
  • Rich set of Analog and Digital Peripherals
  • Digital Peripherals - SDIO, 1x USART, 2x UART, 4x SPI, 3x I2C, 2x I2S, SIO, PWM, QEI
  • Timers: 4x 16/32-bit, 1x 24-bit, WDT, RTC
  • Up to 46 GPIOs (GPIO Multiplexer)
  • Analog Peripherals - 12-bit 16-ch, 5 Msps ADC, 10-bit DAC
  • 3x Op-amps 2x Comparators, IR detector and Temp Sensor, 8 capacitive touch sensor inputs

Best-in-Class Security

  • PSA-L2 Certifiable
  • QSPI Secure XIP from Flash (w/ AES-XTS)
  • Secure Zone, Separated TEE
  • TRNG, Root of trust (PUF)
  • Secure Boot & OTA
  • Advanced Cryptographic Accelerators

Ultra-Low System Power Consumption

  • Wi-Fi Standby Associated mode current: 51 μA @ 1-second interval
  • Deep sleep current < 1 μA, Sleep/Standby current (RAM retention) < 10 μA
  • Low MCU Sub-system active current: 19 μA/MHz in LP mode


  • Matter over Wi-Fi with Bluetooth LE commissioning

Software and Protocol Support

  • Integrated Wi-Fi stack, TCP/IP stack, Bluetooth stack supporting wireless coexistence
  • Support for Embedded Client mode, Access Point mode (up to 8 clients), Concurrent Wi-Fi and Bluetooth LE mode
  • Supports advanced Wi-Fi and Networking security features: WPA/WPA2/WPA3-Personal and Enterprise security
  • Integrated TCP/IP stack supports HTTP/HTTPS, DHCP, SSL/TLS1.3, MQTT
  • Wireless firmware upgrade and provisioning
  • Supports both hosted (Radio Co-Processor (RCP), and Network Co-processor (NCP) modes and host-less (SoC) modes

Operating Conditions

  • Wide operating supply range: 1.75 V to 3.63 V
  • Operating temperature: -40°C to +85/105°C  

Package Size

  • QMS: 7.00 mm x 7.00 mm x 0.85 mm

Development Environment

  • Simplicity Studio v5, GitHub

Harnessing the Power of Wi-Fi 6 in the New Age of IoT

This whitepaper covers the rapid evolution of Wi-Fi over the last two decades and dive into the value of Wi-Fi 6 for IoT devices.

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