EFM32G222F32-QFP48
EFM32G222F32-QFP48 - 32MHz ARM Cortex-M3 MCU | Silicon Labs
The Silicon Labs EFM32G222F32-QFP48 is a 32-bit ARM Cortex-M3 microcontroller operating up to 32 MHz, with 32 kB of Flash memory, 8 kB of RAM, and 37 digital I/O pins in a 48-pin TQFP package. It combines a low-power embedded platform with fast wake-up behavior, energy-saving modes, 3 × 16-bit timers, and flexible serial connectivity for embedded control designs.
An MCU is a compact embedded computing component that integrates a processor core, memory, peripherals, and I/O into one device. The EFM32G222F32-QFP48 belongs to the EFM32 Gecko family and is intended for energy-sensitive applications where compact size, deterministic control, and low-power operation are important. Its Cortex-M3 architecture supports 32-bit processing while retaining a straightforward embedded software model.
Key features include a maximum 32 MHz operating speed, 32 kB Flash organized as 32K × 8, 8 kB RAM, and 37 digital I/O pins. The device also provides three 16-bit timers and low-energy capabilities described by Silicon Labs as fast wake-up times and energy-saving modes. These characteristics support designs that spend substantial time sleeping and must resume quickly for sensor acquisition, control updates, or communications.
The EFM32G222F32-QFP48 is available in a 7x7 mm 48-pin TQFP package, making it suitable for compact PCB layouts. Its 32-bit ARM Cortex-M3 core and peripheral mix can handle motor-control tasks, industrial monitoring, consumer accessories, and connected sensor nodes. Designers should select the appropriate operating voltage, pin multiplexing, clock configuration, and low-power strategy for the target system.
Typical applications include low-power sensor nodes, industrial condition-monitoring equipment, small motor controllers, building-control endpoints, and portable measurement products. In each case, the MCU controls acquisition, timing, logic, and external interfaces while using its low-power modes between activity periods. The exact input voltage limits, current consumption, pin names, package dimensions, and electrical limits must be taken from the manufacturer datasheet rather than inferred from distributor summaries.
A key design consideration is the relationship between sleep-mode selection and wake-up latency. For battery-powered systems, choose the lowest acceptable active and sleep currents while ensuring that the required peripherals respond within the control-loop timing budget. Also budget Flash, RAM, stack depth, and firmware overhead before adding protocol libraries or advanced control algorithms.
This page combines manufacturer specifications, distributor product information, datasheet access, package details, and engineering guidance to support component selection and PCB planning. It is intended to make the EFM32G222F32-QFP48 searchable by MPN, ARM Cortex-M3, 32 MHz, 32 kB Flash, 8 kB RAM, and 48-pin TQFP-related design requirements.
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