IC RF TxRx + MCU General ISM < 1GHz Z-Wave® 863MHz ~ 870MHz, 902MHz ~ 928MHz 48-VFQFN Exposed Pad The Silicon Labs EFR32ZG23B020F512IM48-B is a 2.4 GHz–independent (sub-GHz) RF Tx/Rx + MCU SoC optimized for Z-Wave smart home and IoT mesh networks. It integrates computing, RF communication, and security features in a compact 48-pin QFN package. It is part of the EFR32ZG23 Series 2 platform, which focuses on low-power, secure, long-range wireless connectivity for smart home, building automation, and industrial IoT devices. Key Features MCU Core & Memory ARM Cortex-M33 core (up to ~80 MHz) 512 kB Flash memory 64 kB RAM RF / Wireless Z-Wave protocol support (mesh + long-range) Frequency bands: 863–870 MHz (EU) 902–928 MHz (US) Max data rate: up to 100 kbps Output power: up to +20 dBm High sensitivity: around –110 dBm Security Secure Vault™ high-level security subsystem Hardware cryptography support Secure boot and key protection (IoT-grade security) Low Power Performance Ultra-low receive and transmit currents (single-digit mA RX, tens of mA TX) Designed for battery-powered IoT nodes Peripherals & Interfaces GPIO (up to ~31 pins depending on variant) ADC, I2C, SPI, UART, I2S, IrDA Flexible digital/analog peripheral integration Package & Electrical 48-pin QFN (6 × 6 mm) Supply voltage: 1.71 V – 3.8 V Industrial temperature range: –40°C to +125°C #CommonPartsLibrary #IntegratedCircuit #RF-transceiver #EFR32ZG23B020

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