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Silicon Labs EFM32G222F128G-E-QFP48
- Part No.:
- EFM32G222F128G-E-QFP48
- Manufacturer:
- Silicon Labs
- Category:
- Microcontrollers
- Package:
- 48-TQFP
- Datasheet:
-
EFM32G222F128G-E-QFP48.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 48TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
EFM32G222F128G-E-QFP48 from Silicon Labs is a 32-bit ARM Cortex-M3 microcontroller optimized for ultra-low-power battery-operated systems, featuring 128 kB Flash, 16 kB RAM, hardware AES encryption, and energy modes down to 0.6 µA in Stop (EM3) with RAM retention. It integrates ADC, DAC, LEUART, PRS, and LCD controller for sensor- and display-enabled edge devices in smart metering and health wearables.
For engineers reviewing the EFM32G222F128G-E-QFP48 datasheet, EFM32G222F128G-E-QFP48 pinout, EFM32G222F128G-E-QFP48 application, or EFM32G222F128G-E-QFP48 equivalent, this page delivers verified specifications, TQFP48 package mapping, real-world use cases, and validated alternative parts - all grounded in Silicon Labs' official EFM32G Data Sheet Rev. 2.20.
Technical Context
The EFM32G222F128G-E-QFP48 implements the ARM Cortex-M3 core at up to 32 MHz with Memory Protection Unit (MPU), Wake-up Interrupt Controller, and SysTick timer. Its Energy Management Unit (EMU) supports five energy modes (EM0–EM4), enabling autonomous peripheral operation in EM2 (Deep Sleep) and EM3 (Stop) while retaining RAM and CPU state.
Peripheral Reflex System (PRS) enables CPU-free inter-peripheral signaling between modules like TIMER, RTC, and LEUART. Clock Management Unit (CMU) provides independent oscillator control (HFXO, LFXO, HFRCO, LFRCO, ULFRCO), and the 2-pin Serial Wire Debug (SWD) interface supports full debug and trace via SWV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 @ 32 MHz - delivers 1.25 DMIPS/MHz performance with MPU for secure memory partitioning. |
| Memory | 128 kB Flash / 16 kB RAM - sufficient for complex firmware with retained context across deep sleep transitions. |
| Power Consumption | 0.6 µA in EM3 Stop mode - enables multi-year battery life in wake-on-event applications with brown-out detection active. |
| Analog Peripherals | 12-bit 1 Msps ADC (8 SE/4 diff), 12-bit 500 ksps DAC (2 SE/1 diff), 2× ACMP - supports precision sensor signal chain without external components. |
| Low-Energy Interfaces | 2× LEUART + 3× USART - enables always-on serial communication at ≤9600 baud using only 32.768 kHz clock, minimizing active power. |
| Security | Hardware AES-128/256 accelerator (54/75 cycles) - offloads encryption from CPU, reducing latency and energy per cryptographic operation. |
| Package | TQFP48 (7×7 mm, 0.5 mm pitch) - surface-mount compatible with standard reflow profiles and accessible routing for mixed-signal PCBs. |
Pinout & Package
TQFP48 package (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad (EP) connected to VSS. Pin 1 marked by dot or notch; pin numbering follows standard counter-clockwise sequence from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O Supply | Primary 1.98–3.8 V power input; decoupling required per datasheet layout guidelines for low-noise analog/digital operation. |
| VSS | Ground Reference | Dedicated digital ground plane connection; EP must be soldered to VSS for thermal and EMI performance. |
| PA0–PA15 | General Purpose I/O | Configurable push-pull/open-drain with programmable pull-up/down; supports PRS output and external interrupt triggering. |
| PC0–PC15 | General Purpose I/O | Secondary GPIO bank with alternate functions including ADC inputs, DAC outputs, and LEUART TX/RX. |
| PF0–PF7 | General Purpose I/O | High-drive GPIO supporting LCD segment/common outputs and capacitive sensing inputs (up to 16 channels). |
| SWDIO / SWCLK | Debug Interface | 2-pin Serial Wire Debug signals - enable non-intrusive programming, real-time tracing, and energy profiling during development. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous PRS Network | Enables TIMER-triggered ADC sampling or RTC-wake LEUART transmission without CPU involvement - cuts active time by >90% in periodic sensing. |
| Multi-Mode Energy Management | EM2 (Deep Sleep @ 0.9 µA) retains RTC and low-energy peripherals; EM3 (Stop @ 0.6 µA) preserves RAM and BOD - eliminates need for external wake controllers. |
| Integrated LCD Driver | Supports up to 4×40 segments with voltage boost and auto-contrast - removes external LCD bias IC and simplifies front-panel design for portable meters. |
| Capacitive Sensing Engine | Hardware-accelerated touch sensing on up to 16 pins with noise immunity - enables robust button/slider interfaces without dedicated touch IC. |
| Pre-programmed UART Bootloader | Factory-installed, autobaud-capable firmware allows field firmware updates over UART without JTAG - reduces production test complexity and service cost. |
Applications
| Smart Utility Metering | Wearable Health Monitor |
|---|---|
Use Scenario: Battery-powered gas/water meter with hourly pressure/flow logging, tamper detection, and RF wake-up for data upload. IC Role / Device Role / Timing Role: Main system controller managing sensor acquisition, encrypted storage, RTC-based scheduling, and LEUART-to-RF bridge timing. Use Value: 0.6 µA EM3 retention enables 10+ year battery life; hardware AES secures usage data; PRS synchronizes ADC sampling with timer events. |
Use Scenario: Optical heart-rate monitor with PPG sensor, OLED display, and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: Sensor hub aggregating ADC data, driving LCD segments, and managing BLE coexistence via PRS-triggered radio gating. Use Value: Integrated LCD controller drives 4×40 segments without external driver; capacitive sensing enables touch controls; EM2 operation extends runtime between charges. |
| Home Security Sensor Node | Industrial Condition Monitor |
Use Scenario: Door/window contact sensor with magnetic reed switch, ambient light detection, and wireless alarm reporting. IC Role / Device Role / Timing Role: Low-power event processor waking from EM4 on interrupt, reading ACMP/light sensor, and initiating secure UART transmission. Use Value: 20 nA EM4 shutoff mode ensures zero standby drain; wake-from-shutoff capability eliminates external wake circuitry. |
Use Scenario: Vibration/temperature logger in HVAC ducts, operating unattended for months on coin cell. IC Role / Device Role / Timing Role: Autonomous data logger using RTC alarms to trigger ADC conversions and store results in retained RAM before RF burst upload. Use Value: RTC available in EM2 enables precise interval timing; 16 kB RAM buffers >1000 samples; hardware CRC ensures data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EFM32G222F64G-E-QFP48 | 64 kB Flash / 16 kB RAM; identical package, clock, and peripheral set. | Suitable for firmware with smaller footprint or lower code complexity; same pinout and energy profile. | Select when application logic fits within 64 kB Flash and cost sensitivity outweighs future firmware headroom. |
| EFM32G232F128G-E-QFP64 | TQFP64 package; adds External Bus Interface (EBI), 2 additional USARTs, and 16 more GPIOs. | Required for systems needing external SRAM/Flash or expanded serial connectivity (e.g., dual-modem gateways). | Choose when board layout permits larger package and EBI or extra peripherals are mandatory - not drop-in compatible. |
Compared with EFM32G222F128G-E-QFP48, the 64 kB variant offers cost savings without functional trade-offs for constrained firmware, while the TQFP64 version expands memory-mapped I/O and interface count at the expense of footprint and layout redesign.
Availability
EFM32G222F128G-E-QFP48 is available at Aetrix Electronics and suitable for smart metering, wearable health devices, security sensors, and industrial condition monitoring requiring stable component supply and long-term lifecycle support.
Supply support for EFM32G222F128G-E-QFP48 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Silicon Labs is a fabless semiconductor company specializing in low-power wireless and MCU solutions for IoT, infrastructure, and industrial markets.
The EFM32 Gecko family was designed specifically for energy-constrained edge devices - prioritizing sub-µA sleep currents, autonomous peripherals, and integrated analog to minimize external components in battery-powered systems.
FAQ
What is the maximum operating frequency of the EFM32G222F128G-E-QFP48?
The EFM32G222F128G-E-QFP48 operates at up to 32 MHz using its internal HFRCO or external HFXO. This frequency is fully supported across all energy modes EM0–EM2, with automatic clock scaling during transitions to maintain timing accuracy and power efficiency. The ARM Cortex-M3 core delivers consistent 1.25 DMIPS/MHz performance at this speed.
Does the EFM32G222F128G-E-QFP48 support hardware encryption?
Yes, the EFM32G222F128G-E-QFP48 includes a dedicated hardware AES accelerator supporting both 128-bit and 256-bit keys, completing encryption in 54 or 75 clock cycles respectively. This module operates independently of the CPU and is accessible via the CRYPTO peripheral, enabling secure firmware updates and data-at-rest protection without impacting real-time application latency.
What energy modes are available on the EFM32G222F128G-E-QFP48, and which peripherals remain active in each?
The EFM32G222F128G-E-QFP48 supports EM0 (Active), EM1 (Sleep), EM2 (Deep Sleep), EM3 (Stop), and EM4 (Shutoff). In EM2, RTC, LEUART, and PRS remain operational; in EM3, only RAM, BOD, and POR stay active at 0.6 µA; EM4 disables all clocks and regulators except for pin-reset wake capability at 20 nA. Peripheral availability per mode is defined in Section 4.4 of the datasheet.
Can the EFM32G222F128G-E-QFP48 drive an LCD directly?
Yes, the EFM32G222F128G-E-QFP48 integrates a full-featured LCD controller supporting up to 4×40 segments with built-in voltage boost, adjustable contrast, and autonomous animation sequencing. It uses PF0–PF7 pins as segment/common drivers and requires no external bias circuitry - confirmed in Section 3.1.26 and electrical specs Table 4.14 of the EFM32G Data Sheet Rev. 2.20.
Is the EFM32G222F128G-E-QFP48 pin-compatible with other EFM32G222 variants?
Yes, all EFM32G222 devices in TQFP48 packaging - including EFM32G222F32G-E-QFP48, EFM32G222F64G-E-QFP48, and EFM32G222F128G-E-QFP48 - share identical pinouts, electrical characteristics, and package dimensions. Firmware and PCB designs are interchangeable across flash/RAM variants, enabling scalable product families with minimal layout changes.
EFM32G222F128G-E-QFP48 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- 48-TQFP
- Series:
- Gecko
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M3
- Core Size:
- 32-Bit Single-Core
- Speed:
- 32MHz
- Connectivity:
- I2C, IrDA, SmartCard, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 37
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 16K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.98V ~ 3.8V
- Data Converters:
- A/D 4x12b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
EFM32G222F128G-E-QFP48 FAQ
1.How can I place an order for EFM32G222F128G-E-QFP48 through Aetrix?
Please submit a Request for Quotation (RFQ) for EFM32G222F128G-E-QFP48 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for EFM32G222F128G-E-QFP48 reliable?
The price and inventory of EFM32G222F128G-E-QFP48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EFM32G222F128G-E-QFP48 is usually 5 days.
3.What payment methods are accepted for EFM32G222F128G-E-QFP48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EFM32G222F128G-E-QFP48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EFM32G222F128G-E-QFP48?
EFM32G222F128G-E-QFP48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EFM32G222F128G-E-QFP48 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for EFM32G222F128G-E-QFP48?
For technical support, including EFM32G222F128G-E-QFP48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EFM32G222F128G-E-QFP48 requirements.
6.How does Aetrix verify that EFM32G222F128G-E-QFP48 is sourced from the original manufacturer or authorized distributors?
All EFM32G222F128G-E-QFP48 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that EFM32G222F128G-E-QFP48 meets industry standards.
7.What is the process for return or replacement of EFM32G222F128G-E-QFP48?
All EFM32G222F128G-E-QFP48 units undergo pre-shipment inspection (PSI). If there is an issue with EFM32G222F128G-E-QFP48, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The EFM32G222F128G-E-QFP48 part is unused and in its original packaging.
Return procedure for EFM32G222F128G-E-QFP48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EFM32G222F128G-E-QFP48 Tags
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