SILICON LABS EFR32SG28B322F1024IM68-A Wireless SOC, CORTEX-M33F, 78MHZ, 49 I/O, -40 to 125°C, QFN-EP-68, DualBand

EFR32SG28B322F1024IM68-A is a EFR32SG28 Amazon Sidewalk SoC. It is an ideal solution for �Internet of Things� applications in smart homes, security, lighting, building automation, and metering. The 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 IoT devices. A large memory footprint enables flexible solutions for dynamic protocol support and the integration of a matrix-vector processor empowers AI/ML implementation for smart end nodes. Typical applications are metering, access control, street lighting, and energy management.

• 32-bit ARM® Cortex®-M33 core with 78MHz maximum operating frequency
• Energy-efficient radio core with low active and sleep currents, -40 to 125°C temperature range
• High receiver performance, -108.6 sensitivity at 50kbps, 915MHz 2GFSK
• 2 Ã� analogue comparator (ACMP), 2-channel digital to analogue converter (VDAC)
• Up to 49 general purpose I/O pins with output state retention and asynchronous interrupts
• 8 channel DMA controller, 12 channel peripheral reflex system (PRS)
• 32-bit real-time counter, 24-bit low energy timer for waveform generation
• Die temperature sensor with ±2°C typical accuracy across temperature range
• True random number generator (TRNG), ARM® TrustZone®, anti-tamper
• 1.71V to 3.8V single power supply, 1024KB flash, 256KB RAM, QFN68 dual band package