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DescriptionSpecification
Our SiWx915 SoC is the second in our family of Wi-Fi 6 devices, and is ideal for energy efficient or line powered IoT wireless devices using Wi-Fi®, Bluetooth Low Energy (LE), Matter, and IP networking for cloud connectivity. SiWx915 SoC includes a Wi-Fi 6 plus Bluetooth LE wireless CPU subsystem, and an integrated micro-controller (MCU) application subsystem, Security, memory, peripherals subsystem all in a single 7x7 mm QFN package. The wireless subsystem consists of a multi-threaded processor 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, and FLASH. The ARM® Cortex®-M4F is dedicated for peripheral and application related processing, while the multi-threaded processor runs the wireless and networking stacks on independent threads, thus providing a high performance, fully integrated solution that is ready for a wide range of embedded wireless IoT applications.
Target Applications:
Wi-Fi 6
Bluetooth Low Energy 5.4
Matter Support
Microcontroller Subsystem
High Level of Security
Low System Power Consumption
Software and Protocol Support
Operating Conditions
Package Size
*Silicon Labs Authorized Distributor
Target Applications:
- Smart Homes
- Consumer Health and Wearables
- Clinical Medical
- Industrial
- Retail
- Smart Building and Cities
- Asset Tracking
- 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
- Embedded SRAM up to 672 KB
- Embedded Flash up to 8 MB and optional external PSRAM support
- Integrated Wi-Fi stack, TCP/IP stack, Bluetooth stack supporting wireless coexistence and Matter
Wi-Fi 6
- Compliant to 2.4 GHz, single-spatial stream IEEE 802.11 b/g/n/ax
- Support for 802.11ax 20 MHz features such as OFDMA, BSS Coloring, MU-MIMO, and Target Wake Time (TWT)
- Transmit power up to +20 dBm with integrated PA
- Receive sensitivity as low as -97.5 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 +19.5 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)
Matter Support
- Matter over Wi-Fi with Bluetooth LE commissioning
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, USART, UART, SPI, I2C, I2S, SIO, PWM, QEI
- Timers: 16/32-bit, 1x 24-bit, WDT, RTC
- Up to 22 GPIOs (GPIO Multiplexer)
- Analog Peripherals - 12-bit 16-ch, 5 Msps ADC, 10-bit DAC
- Op-amps Comparators, IR detector and Temp Sensor, capacitive touch sensor inputs
High Level of Security
- QSPI Encrypted XIP from Flash (w/ AES-XTS)
- Secure Zone
- TRNG, Root of trust (PUF)
- Secure Boot & OTA, Anti-roll back
- Advanced Cryptographic Accelerators
Low System Power Consumption
- Wi-Fi Standby Associated mode current: 120 μA @ 1-second interval
- Low MCU Sub-system active current: 50 μA/MHz in LP mode
Software and Protocol Support
- Integrated Wi-Fi stack, TCP/IP stack, Bluetooth stack supporting wireless coexistence
- Support for Embedded Client mode, Access Point mode, Concurrent Wi-Fi and Bluetooth LE mode in client mode
- Supports advanced Wi-Fi and Networking security features: WPA, WPA2 (Personal/Enterprise), WPA3 (Personal)
- Integrated TCP/IP stack supports HTTP/HTTPS, DHCP, SSL/TLS1.3, MQTT
- Wireless firmware upgrade and provisioning
- Supports both hosted modes, Radio Co-processor (RCP), Network Co-processor (NCP) and host-less (SoC) modes
Operating Conditions
- Wide operating supply range: 1.75 V to 3.63 V
- Operating temperature: -40°C to +85°C
Package Size
- QMS: 7.00 mm x 7.00 mm x 0.85 mm
*Silicon Labs Authorized Distributor
