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
• Embedded SRAM up to 672 KB
• In-package Flash up to 8 MB and supports optional external Flash up to 16 MB
• In-package PSRAM up to 8 MB and supports optional external PSRAM up to 16 MB
• Wi-Fi stack, TCP/IP stack, Bluetooth stack run on NWP, offloading application MCU

Wi-Fi 6

• Wi-Fi 6 802.11ax 2.4 GHz 1 x 1 20 MHz
• IEEE 802.11 b/g/n/ax
  
• Supports 802.11ax features such as OFDMA, MU-MIMO, and Target Wake Time (TWT)
• Up to +17.5 dBm Transmit (Tx) power with integrated PA
• Receive (Rx) sensitivity -95 dBm
  
• Data Rate 86 Mbps MCS7

Ultra-Low System Power Consumption

• Wi-Fi Standby Associated mode current: 78 μA @ 1-second interval
• Deep sleep current ~ 2.5 μA, Sleep/Standby current (352kB SRAM retention) ~ 10 μA
• Low MCU Sub-system active current: 32 μA/MHz @ 20MHz in low power mode

Bluetooth Low Energy 5.4

• Bluetooth Low Energy  1Mbps, 2Mbps, and Long-Range modes 125 kbps & 500 kbps
• Transmit (TX) power up to +17 dBm with integrated PA

Wireless Certifications

• Wi-Fi Alliance, Bluetooth SIG
• USA (FCC), Canada (IC/ISED), MIC (Japan), etc. Compliance with the relevant EN standards including EN 300 328 v2.2.2 for conformity with the directives and regulations in the EU (CE) and UK (UKCA) (Contact Silicon Labs sales for more details).
  

Microcontroller Subsystem

• ARM® Cortex®-M4 with FPU up to 180 MHz
  
• Integrated 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
  
• Digital Peripherals - SDIO, 1 x USART, 2 x UART, 4 x SPI, 3 x I2C, 2 x I2S, PWM, QEI
  
• Timers: 4 x 16/32-bit, 1 x 24-bit, WDT, RTC
• Analog Peripherals 12-bit 16-channel, 2.5 Msps ADC, 10-bit DAC, 3 x Op-amps, 2 x Comparators, Temperature Sensor
• 43 GPIOs

High Level of Security

• WPA2 (Personal/Enterprise), WPA3 (Personal), TLS1.3
• Sevure Boot/OTA, PUF, TRNG, Secure Zone, Key Storage, Debug Lock, Anti Rollback, Encrypted XiP, Secure Attestation
• HW Accelerators: AES-128/256, SHA-256/384/512, HMAC, RSA, ECC, ECDH, RNG, CRC, SHA-3, AES-GCM / CMAC, ChaCha-poly, TRNG

Operating Range

• Voltage: 3.0 V to 3.63 V
• GPIOs: 1.71 V to 3.63 V
  
• Operating temperature: -40°C to +85°C  

Dimensions

• 16 mm x 21.1 mm x 2.3 mm

Development Environment

• Simplicity Studio
• VS Code GitHub