Product Overview
The EFM32G210F128G-E-QFN32R from Silicon Labs is a 32-bit ARM Cortex-M3 Gecko microcontroller with 128KB Flash and 16KB SRAM in a 32-QFN (6x6mm) package. Operating at up to 32MHz with 1.98V to 3.8V supply, it features ultra-low power consumption with multiple energy modes, making it ideal for battery-operated and energy-sensitive applications.
Key Specifications
| Core | ARM Cortex-M3 |
| Flash Memory | 128KB |
| SRAM | 16KB |
| Clock Speed | Up to 32MHz |
| I/O Pins | 24 |
| ADC | 4-channel 12-bit |
| DAC | 1-channel 12-bit |
| Communication | I2C, SPI, USART, IrDA, SmartCard |
| Supply Voltage | 1.98V to 3.8V |
| Package | 32-QFN (6 x 6mm w/ EP) |
| Operating Temperature | -40°C to +85°C |
Features
- Ultra-low power with 4 energy modes (EM0-EM3)
- Peripheral Reflex System (PRS) for inter-peripheral communication
- Low Energy UART and Timer
- Hardware AES encryption
- DMA controller for autonomous data transfers
- LCD controller for segment displays
- Brown-out detector and watchdog timer
On-chip debug with Serial Wire interface Applications
- Battery-operated sensor nodes
- Smart meters and utility monitoring
- Home and building automation
- Portable medical devices
- IoT edge devices
The EFM32G210F128G-E-QFN32R from Silicon Labs is part of the Gecko family of 32-bit microcontrollers based on the ARM Cortex-M3 processor. It combines 128KB Flash and 16KB SRAM with ultra-low power consumption through sophisticated energy management with four energy modes. The Peripheral Reflex System (PRS) allows peripherals to communicate without CPU intervention, further reducing power consumption. Features include hardware AES encryption, LCD controller, 12-bit ADC and DAC, and multiple serial interfaces.
The EFM32G210 operates around four energy modes: EM0 (Active) for full CPU and peripheral operation, EM1 (Sleep) where the CPU sleeps but peripherals run, EM2 (Deep Sleep) with only low-frequency oscillators and low-energy peripherals active, and EM3 (Stop) with only the watchdog and RTC running. The Energy Management Unit (EMU) controls transitions between modes. The Peripheral Reflex System (PRS) enables autonomous inter-peripheral communication without CPU wake-up, reducing overall energy consumption. The DMA controller performs memory operations independently of the CPU.
Pin Name Type Function 1 VDD Power Digital supply voltage 2 PA0 I/O GPIO / USART0_TX 3 PA1 I/O GPIO / USART0_RX 4-6 PA2-PA4 I/O GPIO / SPI / I2C 7-14 PB0-PB7 I/O GPIO / Timer / ADC 15 RESET Input System reset (active low) 16-23 PC0-PC7 I/O GPIO / USART / DAC 24-27 PD0-PD3 I/O GPIO / LEUART / LCD 28 AVDD Power Analog supply voltage 29 VSS Power Ground 30-32 PD4-PD6 I/O GPIO / Debug (SWD) - Battery-powered wireless sensor nodes with ultra-low standby
- Smart metering with LCD display support
- Building automation thermostats and controllers
- Portable health monitoring devices
- Energy harvesting IoT endpoints
Manufacturer Part Number Package Notes Silicon Labs EFM32G230F128G-QFN32 QFN-32 Similar Gecko, more peripherals Silicon Labs EFM32TG210F32G-QFN32 QFN-32 Tiny Gecko, 32KB Flash ST STM32L151C8T6 LQFP-48 Ultra-low-power ARM Cortex-M3 NXP LPC11U34FHI33 QFN-32 Cortex-M0+, low power TI MSP430F5528IRGC QFN-32 16-bit ultra-low power MCU Recommend Parts
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Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.Service & Packaging
All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.
Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.Company
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