EFM32ZG108F32-B-QFN24

Microcontrollers Overview

The EFM32ZG108F32-B-QFN24 is a 32-bit microcontroller from Silicon Labs' Zero Gecko family, built on the ARM Cortex-M0+ core. It features 32 kB of Flash memory and 4 kB of RAM, operating at a maximum clock frequency of 24 MHz within a 24-pin QFN package. The device supports a supply voltage range of 1.98 V to 3.8 V and operates between -40°C and +85°C. Key peripherals include a 12-bit ADC, hardware AES encryption, DMA controller, and multiple serial interfaces such as USART, I2C, and LEUART.

Microcontrollers Feature Summary

• Ultra-low power operation with energy modes supporting deep sleep and shutoff states for extended battery life
• Integrated hardware cryptography accelerator for secure data processing
• Peripheral Reflex System enabling autonomous inter-peripheral signaling without CPU intervention
• Flexible GPIO configuration with configurable drive strength and input filtering

Microcontrollers Applications

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

Microcontrollers Procurement Notes

Verify the specific ordering code suffix against the manufacturer's official documentation to confirm packaging type and pin count compatibility. Ensure the selected variant matches the required memory size and peripheral set for the target application design. Cross-reference the datasheet revision to confirm electrical characteristics and package dimensions align with PCB layout specifications.

Microcontrollers Selection Notes

Select this component for applications requiring high performance combined with minimal active current consumption. The inclusion of a pre-programmed UART bootloader simplifies field updates and initial programming. Consider the available GPIO count and peripheral availability when mapping system requirements to the specific pinout configuration of the QFN24 package.

Microcontrollers Part Context

This microcontroller belongs to the EFM32 Zero Gecko family, designed for energy-sensitive consumer and industrial applications. The family utilizes the ARM Cortex-M0+ processor to deliver efficient code execution while maintaining low power states. It is part of Silicon Labs' broader portfolio of wireless and wired connectivity solutions for IoT ecosystems.

Microcontrollers Replacement Considerations

Compatible variants within the same package include EFM32ZG108F16-B-QFN24, EFM32ZG108F8-B-QFN24, and EFM32ZG108F4-B-QFN24. These parts share identical pinouts and core functionality but offer reduced Flash or RAM capacities. Verify that the reduced memory resources meet the firmware requirements before substitution.

Microcontrollers FAQ

Does the EFM32ZG108F32-B-QFN24 support hardware encryption?

Yes, it includes a hardware Advanced Encryption Standard (AES) accelerator capable of 128-bit key operations.

What is the lowest power mode available in this device?

The device supports EM4 Shutoff mode, which consumes as little as 20 nA at 3 V.

Can the LEUART operate in deep sleep mode?

Yes, the Low Energy UART allows two-way communication in Deep Sleep Mode (EM2) using only a 32.768 kHz clock.