Silicon Labs EFR32SG28 Dual-Band System-on-Chips (SoCs)

Silicon Labs EFR32SG28 Dual-Band System-on-Chips (SoCs) are designed specifically for Amazon’s Sidewalk ecosystem. The high-performance, dual-band devices support multiple Sidewalk PHYs, including 2.4GHz BLUETOOTH® Low Energy for in-home connectivity and sub-GHz FSK for “beyond the fence” and Neighborhood Area Networks. The Silicon Labs EFR32SG28 single-die, multi-core solution provides industry-leading security, low power consumption with fast wakeup times, and integrated power amplifiers to enable the next level of secure connectivity for Amazon Sidewalk devices. Key features, including a large memory footprint, an AI/ML hardware accelerator, Secure Vault®, and up to 49 GPIO, enable Silicon Labs’ most feature-rich product for Amazon Sidewalk applications.

Features

  • Supports Amazon Sidewalk
  • Low-power dual-band sub-GHz FSK + 2.4GHz Bluetooth LE SoC
  • 32-bit Arm® Cortex®-M33 core with 78MHz maximum operating frequency
  • 1024kB of flash and up to 256kB of RAM
  • Energy-efficient radio core with low active and sleep currents
  • Integrated PAs with up to 20dBm for sub-GHz FSK and 10dBm for Bluetooth LE
  • Secure Vault™ Mid and Secure Vault™ High
  • AI/ML hardware accelerator
  • Robust peripheral set and up to 49 GPIO
  • 6mm x 6mm QFN48 and 8mm x 8mm QFN68 package options

Applications

  • Metering
  • Access control
  • Street lighting
  • Energy management

Block Diagram

Block Diagram - Silicon Labs EFR32SG28 Dual-Band System-on-Chips (SoCs)

Silicon Labs EFR32SG28 Dual-Band System-on-Chips (SoCs)