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Introduction, features, and applications of Silicon Labs SiWx917 Wi-Fi 6 Plus BLE 5.4 wireless SoC

2/6/2024 9:40:00 AM

Summary: Wi-Fi 6 Plus BLE 5.4 wireless SoC offers the lowest power consumption in Silabs Wi-Fi 6 device family.

SiWx917 Silicon Labs

Silicon Labs SiWx917 Wi-Fi 6 Plus BLE 5.4 wireless SoC offers the lowest power consumption in Silabs Wi-Fi 6 device family. SiWx917 is ideal for ultra-low power IoT wireless devices, enabling secure cloud connectivity using Wi-Fi, BLUETOOTH, Matter and IP networks. SoCs are the best choice for developing battery-powered devices that require extended battery life.

Silicon Labs SiWx917 SoC includes ultra-low-power Wi-Fi 6 + Bluetooth Low Energy (LE) 5.4 wireless CPU subsystem and integrated microcontroller (MCU) application subsystem, security, peripherals and power management subsystem, all All in a 7mm x 7mm QFN package. The wireless subsystem includes a multi-threaded processor (ThreadArch) running at frequencies up to 160MHz, baseband digital signal processing, analog front end, 2.4GHz RF transceiver and integrated power amplifier. The application subsystem integrates an Arm Cortex-M4F running at up to 180MHz, embedded SRAM, FLASH, AI/ML accelerator and enhanced PSA-L2 certifiable security engine. The Arm Cortex-M4F is dedicated to peripherals and application-related processing. Meanwhile, ThreadArch runs wireless and network stacks on independent threads, providing a fully integrated solution for a wide range of embedded wireless IoT applications.


characteristic

  • Ultra-low power wireless systems on a chip

    • Wi-Fi 6 single-band 2.4GHz and Bluetooth Low Energy 5.4 wireless radio

    • Arm Cortex-M4F application MCU up to 180MHz

    • Integrated baseband processor, RF transceiver, high power amplifier, balancer and transceiver switch

    • Integrated AI/ML accelerator using matrix vector processor (MVP)

    • Embedded SRAM up to 672KB

    • Built-in Flash up to 8MB and supports optional external Flash

    • Embedded pSRAM up to 8MB and supports optional external pSRAM

    • Integrate Wi-Fi stack, TCP/IP stack, Bluetooth stack, support wireless coexistence and Matter

  • wi-fi 6

    • Support 2.4GHz single spatial stream IEEE 802.11 b/g/n/ax

    • Supports 802.11ax 20MHz features such as OFDMA, MU-MIMO and Target Wake Time (TWT).

    • Integrated PA transmission power up to +21dBm

    • Receiving sensitivity as low as -98.5dBm

    • Data rates up to 86Mbps (802.11ax MCS0 to MCS7)

    • Working frequency range: 2412MHz ~ 2484MHz

  • Matter over Wi-Fi with Bluetooth LE debugging

  • Microcontroller subsystem

    • Arm Cortex-M4F core, up to 180MHz

    • Integrated FPU, MPU, NVIC

    • In-system programming (ISP) and over-the-air (OTA) firmware updates

    • Power-on reset (POR), brown/blackout and blackout detection

    • Rich set of analog and digital peripherals

    • Digital peripherals: SDIO, 1 USART, 2 UART, 4 SPI, 3 I(2)C, 2 I(2)S, SIO, PWM, QEI

    • Timer in 4 × 16/32 bit, 1 × 24 bit, WDT, RTC

    • Up to 46 GPIOs (GPIO multiplexer)

    • Analog peripherals: 12-bit 16-ch, 5Msps ADC, 10-bit DAC

    • 3 operational amplifiers, 2 comparators, IR detector and temperature sensor, and 8 capacitive touch sensor inputs

  • simple Studio v5, GitHub development environment

  • Bluetooth Low Energy 5.4

    • Integrated PA transmission power up to +21dBm

    • At -106dBm, the receiving sensitivity is -95dBm, LR is 125Kbps

    • 2402MHz to 2480MHz operating frequency range

    • Bluetooth low energy 1Mbps, 2Mbps and remote mode (125kbps, 500kbps)

  • First class security

    • PSA-L2 Guaranteed

    • QSPI secure XIP from Flash (supports AES-XTS)

    • Separate TEE in safe area

    • TRNG, root of trust (PUF)

    • Secure boot and OTA

    • Advanced cryptographic accelerator

  • Ultra-low system power consumption

    • Wi-Fi standby related mode current is 51μA, interval 1s

    • Deep sleep current is less than 1μA, sleep/standby current (RAM reserved) is less than 10μA

    • Low MCU subsystem effective current in LP mode is 19μA/MHz

  • Software and protocol support

    • Integrate Wi-Fi stack, TCP/IP stack and Bluetooth stack to support wireless coexistence

    • Supports embedded client mode, access point mode (up to 8 clients), concurrent Wi-Fi and Bluetooth LE modes

    • Advanced Wi-Fi and network security features with WPA/WPA2/wpa3 support, including personal and enterprise security

    • Integrated TCP/IP stack, supports HTTP/HTTPS, DHCP, SSL/TLS1.3 and MQTT

    • Wireless firmware upgrade and configuration

    • Supports managed radio coprocessor (RCP) and network coprocessor (NCP) modes and hostless (SoC) mode

  • operating conditions

    • Wide operating supply range of 1.75V to 3.63V

    • Working temperature -40℃~ +85℃/+105℃

  • QMS is 7.00mm x 7.00mm x 0.85mm package size


app

  • smart home

  • Consumer Health and Wearables

  • medical

  • industry

  • retail

  • Smart buildings and cities

  • Asset tracking


block diagram


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