EFM32G840F
32-bit ARM Cortex M3 microcontrollers with flash memory and QFN packaging
Manufacturer： ['energy-micro', 'silicon-laboratories']
series introduction
The **EFM32G840F Series** is a family of energy-efficient 32-bit microcontrollers (MCUs) designed by Silicon Labs, tailored for ultra-low-power embedded applications. Built on the ARM Cortex-M3 core, this series combines high performance with exceptional energy efficiency, making it ideal for battery-operated and energy-sensitive devices. The EFM32G840F MCUs are engineered to deliver optimal power consumption, with multiple low-power modes that allow developers to minimize energy usage without compromising functionality.
One of the standout features of the EFM32G840F Series is its advanced energy management system, which includes an ultra-low-power real-time clock (RTC) and a flexible energy management unit (EMU). These features enable the MCU to operate efficiently in sleep modes, consuming as little as 0.9 µA in deep sleep mode, while still maintaining critical functionality. Additionally, the series incorporates a high-performance peripheral set, including a 12-bit analog-to-digital converter (ADC), a digital-to-analog converter (DAC), and multiple communication interfaces such as UART, SPI, and I2C. These peripherals are designed to operate autonomously, further reducing the CPU's workload and power consumption.
The EFM32G840F Series is housed in compact packages, making it suitable for space-constrained designs. Its robust design ensures reliable operation across a wide temperature range, from -40°C to +85°C, making it suitable for harsh environments. The MCUs also feature hardware-based security mechanisms, such as memory protection units (MPUs) and tamper detection, ensuring data integrity and system security.
Typical applications for the EFM32G840F Series include IoT devices, smart sensors, wearable technology, and portable medical devices. Its ultra-low-power capabilities make it particularly well-suited for applications requiring long battery life, such as remote monitoring systems and wireless sensor networks. In industrial settings, the series is used for automation and control systems, where energy efficiency and reliability are critical. With its combination of performance, energy efficiency, and versatility, the EFM32G840F Series is a powerful solution for modern embedded systems.
Images for reference
64-VFQFN Exposed Pad
64-VFQFN Exp Pad
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