EFM32HG309F64N-C-QFN24

Microcontrollers Overview

The EFM32HG309F64N-C-QFN24 is a 32-bit microcontroller from the Silicon Labs Happy Gecko family, built on an ARM Cortex-M0+ core running at up to 25 MHz. It features 64 kB of Flash memory and 8 kB of RAM within a QFN24 package. The device supports a supply voltage range of 1.98 V to 3.8 V and operates across an industrial temperature range of -40 °C to +105 °C.

Microcontrollers Feature Summary

• Ultra-low power operation with multiple energy modes including Stop mode current as low as 0.6 µA and Shutoff mode at 20 nA.
• Integrated Low Energy USB peripheral compliant with USB 2.0 standards, featuring crystal-free operation capability.
• Hardware security acceleration via AES module supporting 128-bit keys for efficient encryption and decryption.
• Flexible analog peripherals including a 12-bit ADC, Analog Comparator, Voltage Comparator, and Current DAC.

Microcontrollers Applications

• Energy, gas, water, and smart metering systems
• Health and fitness wearable applications
• Smart accessories and IoT devices
• Alarm and security systems
• Industrial and home automation controllers

Microcontrollers Procurement Notes

Verify the specific suffix 'N' confirms the extended temperature grade (-40 to +105 °C) rather than the commercial grade. Confirm the 'C' revision code matches the required silicon version for your design. Check official distributor listings for current availability status as older revisions may be subject to End-of-Life notices.

Microcontrollers Selection Notes

Select this part when high performance is required alongside strict power constraints in battery-operated devices. The inclusion of Low Energy USB allows for direct connectivity without external transceivers. Ensure the application utilizes the available GPIO count and peripheral set, such as USART and I2C, efficiently to leverage the DMA capabilities.

Microcontrollers Part Context

This component belongs to the EFM32HG (Happy Gecko) series, designed for energy-friendly embedded applications. It shares the same core architecture and low-power techniques as other members of the family but offers specific memory sizes and peripheral configurations tailored for cost-sensitive, high-volume consumer and industrial products.

Microcontrollers Replacement Considerations

EFM32HG309F64G-C-QFN24: Identical specifications except for the commercial temperature range (-40 to +85 °C).

Microcontrollers FAQ

Does the EFM32HG309F64N-C-QFN24 support crystal-less USB operation?

Yes, the integrated Low Energy USB peripheral includes a dedicated USB oscillator with clock recovery, enabling full-speed and low-speed USB communication without external crystals.

What is the maximum operating temperature for this specific part number?

The 'N' suffix indicates an industrial temperature grade, allowing operation from -40 °C to +105 °C.