EFM32TG222F8-QFP48 - 32MHz Cortex-M3 MCU | Silicon Labs
MPN: EFM32TG222F8-QFP48 ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0.9292 | $0.93 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
EFM32TG222F8-QFP48 Overview
A microcontroller is a programmable system-on-chip that integrates a CPU core, memory, and peripherals into one semiconductor package. The EFM32TG222F8-QFP48 belongs to the Tiny Gecko family and combines general-purpose embedded processing with energy-saving modes and fast wake-up behavior. Its position in the hierarchy is MCU -> embedded microcontroller -> ARM Cortex-M3 processor -> Silicon Labs Tiny Gecko platform.
The device provides 8 kB Flash organized as 8K x 8 and 2 kB RAM. Its listed peripheral resources include 37 digital I/O pins and two 16-bit timers. These features suit compact embedded products that need deterministic control, low-power operation, and a compact 48-TQFP footprint rather than a large high-pin-count MCU package.
The ARM Cortex-M3 core provides a 32-bit processing architecture at speeds up to 32 MHz. The manufacturer describes the EFM32TG222F8-QFP48 as energy-sensitive and highlights its low-power platform, innovative low-energy techniques, fast wake-up times, and energy-saving modes. The 48-TQFP package measures 7 x 7 mm and is intended for surface-mount PCB assembly.
Typical applications include low-power sensor nodes, compact industrial controllers, battery-operated instruments, wearable accessories, and embedded control modules. The 37 digital I/O pins provide interfaces for sensors, indicators, actuators, and communication peripherals, while the two 16-bit timers support timing, pulse measurement, and periodic control tasks.
Designers should verify the complete pin multiplexing, peripheral availability, operating voltage, and timing limits against the manufacturer datasheet before finalizing a PCB. In particular, do not infer analog, communication, or debug capabilities from the digital-I/O count alone; each function must be assigned to a valid pin in the device pin configuration.
This page consolidates verified manufacturer and distributor information, distinguishes unavailable technical fields, and avoids presenting unverified substitutes as drop-in replacements. For an energy-sensitive 32 MHz Cortex-M3 design, the EFM32TG222F8-QFP48 provides a defined 8 kB Flash, 2 kB RAM, and 48-TQFP integration baseline.
Drop-in alternatives for EFM32TG222F8-QFP48 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
EFM32TG222F8-D-QFP48
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32TG222F32-QFP48
✅ Drop-In📋 Reference alternative (not in catalog)
EFM32TG222F8-QFP48 Maximum Ratings & Electrical Characteristics
| Product Type | 32-bit ARM Cortex-M3 microcontroller |
| Series | Tiny Gecko |
| Maximum CPU Speed | 32 MHz |
| Flash Memory | 8 kB (8K x 8) |
| RAM | 2 kB |
| Digital I/O Pins | 37 |
| Timer Configuration | 2 x 16-bit timers |
| CPU Architecture | ARM Cortex-M3 |
| Architecture | 32-bit single-core |
| Supply Voltage | 1.98 V to 3.8 V |
| Package | 48-TQFP (7 x 7 mm) |
| Mounting Type | Surface Mount |
EFM32TG222F8-QFP48 48-tqfp (7 x 7 mm) Pin Configuration Guide
Pin configuration for EFM32TG222F8-QFP48 (48-tqfp (7 x 7 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for EFM32TG222F8-QFP48.
Refer to the datasheet for full pin configuration.
Typical Applications
EFM32TG222F8-QFP48 is suitable for 6 applications: Battery-Powered Sensor Nodes, Compact Industrial Control Modules, Low-Power Wearable Accessories, Battery Management Instrumentation, Smart Home Sensor Interface, Embedded Timing and PWM Controller.
Battery-Powered Sensor Nodes
The EFM32TG222F8-QFP48 fits battery-powered sensor nodes because its Tiny Gecko platform emphasizes energy-saving modes, fast wake-up times, and operation up to 32 MHz while retaining only 8 kB Flash and 2 kB RAM. The 37 digital I/O pins can connect discrete sensors, indicator LEDs, and low-power switching stages without requiring a large package. Firmware must fit within the verified memory limits, and average current should be evaluated from the selected sleep mode, wake-up frequency, sensor load, and regulator efficiency.
Recommended
Compact Industrial Control Modules
For compact industrial control modules, the EFM32TG222F8-QFP48 provides a 32 MHz ARM Cortex-M3 core, two 16-bit timers, and 37 digital I/O pins in a 7 x 7 mm 48-TQFP package. Timers can support periodic control, input capture, or basic motor and actuator timing, while GPIO can connect sensors and status devices. The design should include industrial input conditioning, ESD protection, proper ground returns, and validation of operating-temperature requirements because the supplied data does not state the temperature range.
Recommended
Low-Power Wearable Accessories
The EFM32TG222F8-QFP48 can serve as the control MCU in a compact wearable accessory when the application is designed around its 8 kB Flash and 2 kB RAM limits. The manufacturer highlights energy-saving modes and fast wake-up times, while the 37 digital I/O pins can support haptic control, simple indicators, and external sensor interfaces. Designers should budget firmware and RAM carefully, minimize dynamic power, and verify whether the package size and available temperature range satisfy the enclosure and charging architecture.
Recommended
Battery Management Instrumentation
The EFM32TG222F8-QFP48 is suitable for a small battery-management instrument when the device needs local control, periodic measurement, and low standby activity without a high-capacity memory system. Its two 16-bit timers can organize sampling intervals or control charger timing, while GPIO can monitor status signals and drive indicator paths. The 1.98 V to 3.8 V listed supply range must be coordinated with the battery chemistry and regulator. Current sensing, protection, calibration, and safety behavior require application-level circuitry beyond the MCU.
Recommended
Smart Home Sensor Interface
A smart-home sensor interface can use the EFM32TG222F8-QFP48 for local sensing and control when the node does not require large application storage or high-speed external processing. The 37 digital I/O pins support simple digital sensors, alarm outputs, and status LEDs, while the 32 MHz Cortex-M3 core handles protocol tasks and control logic. The manufacturer-reported energy-saving features are valuable for always-connected nodes, but radio selection, RF layout, antenna design, and low-power regulator behavior must be integrated and tested separately.
Recommended
Embedded Timing and PWM Controller
The two 16-bit timers listed for the EFM32TG222F8-QFP48 make it relevant to small embedded timing and PWM-control products where periodic generation and input timing are required. The MCU can coordinate timer events, read digital inputs, and update actuator or indicator outputs from a compact 48-TQFP package. At 32 MHz, the core provides more processing margin than many simple state machines, but the final timer clock, prescaler, output routing, and PWM resolution must be confirmed from the manufacturer pin configuration and timing documentation.
Recommended
Recommended Products Summary
Engineering reference data for EFM32TG222F8-QFP48 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | EFM32TG222F8-D-QFP48 | EFM32TG222F32-QFP48 |
|---|---|---|---|
| Package | 48-TQFP (7 x 7 mm) | 48-TQFP (7 x 7 mm) | 48-TQFP (7 x 7 mm) |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| CPU Core | ARM Cortex-M3 | ARM Cortex-M3 | ARM Cortex-M3 |
| Maximum Speed | 32 MHz | 32 MHz | 32 MHz |
Key Differentiators
- Compact 32 MHz Cortex-M3 integration (vs EFM32TG222F32-QFP48)
- Low-power-oriented Tiny Gecko platform (vs EFM32TG222F8-D-QFP48)
- Small 48-TQFP footprint (vs EFM32TG222F32-QFP48)
- Defined GPIO and timer baseline (vs EFM32TG222F8-D-QFP48)
Design Notes
Design the supply rail for the verified 1.98 V to 3.8 V range and validate startup, sleep, and active current in the final system. The manufacturer highlights energy-saving modes and fast wake-up times, but the supplied data does not quantify current consumption. Keep the MCU rail free from noisy analog or switching loads where possible, and verify regulator ripple against the device's timing and analog requirements using the manufacturer datasheet.
Use a compact 48-TQFP land pattern and route all required power, ground, reset, clock, programming, and signal pins according to the official package drawing. The verified material confirms 7 x 7 mm TQFP dimensions and 37 digital I/O pins, but does not provide a complete pin map. Do not assign functions solely from the GPIO count; confirm pin multiplexing and exposed programming or debug requirements before fabrication.
Plan firmware around the verified limits of 8 kB Flash and 2 kB RAM. The EFM32TG222F8-QFP48 is not a large-storage MCU, so bootloader, application code, buffers, stack, and diagnostic code must be budgeted together. If firmware exceeds these limits, EFM32TG222F32-QFP48 may offer more memory, but changing to that part requires a new memory map and regression test rather than a blind drop-in substitution.
Keep sensitive sensor, timing, and communication routes away from switching nodes and high-current return paths. Place decoupling and support components according to the manufacturer reference design and the actual power-tree topology. For low-energy products, measure wake-up behavior and leakage on the assembled PCB rather than relying only on nominal MCU specifications, since sensor loads and regulator efficiency can dominate average power.
Compliance Information
Compliance claims were not present in the supplied verified manufacturer or distributor snippets. Confirm current RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification documentation before production release.
