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Silicon Labs EFM32TG225F32-D-BGA48R
- Part No.:
- EFM32TG225F32-D-BGA48R
- Manufacturer:
- Silicon Labs
- Category:
- Microcontrollers
- Package:
- 48-VFBGA
- Datasheet:
-
EFM32TG225F32-D-BGA48R.pdf
- Description:
- IC MCU 32BIT 32KB FLASH 48BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,811
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Product details
Overview
EFM32TG225F32-D-BGA48R from Silicon Laboratories is a 32-bit ARM Cortex-M3 microcontroller optimized for ultra-low-power battery-operated systems. It delivers 32 MHz operation, 32 kB Flash/4 kB RAM, 0.6 μA Stop mode current with RAM retention, hardware AES-128/256 acceleration, and autonomous peripherals including LEUART, LETIMER, and PRS - enabling energy-aware sensor node and metering applications.
For engineers reviewing the EFM32TG225F32-D-BGA48R datasheet, EFM32TG225F32-D-BGA48R pinout, EFM32TG225F32-D-BGA48R application, or EFM32TG225F32-D-BGA48R equivalent, this page provides verified technical context, validated BGA48 pin mapping, confirmed low-energy mode behavior (EM2–EM4), real-world application mappings for smart metering and industrial sensing, and two field-tested alternative parts with documented functional trade-offs.
Technical Context
The EFM32TG225F32-D-BGA48R implements an ARM Cortex-M3 core with 1.25 DMIPS/MHz performance and supports five energy modes (EM0–EM4), where EM2 (Deep Sleep) retains RTC and peripheral operation at 1.0 μA, and EM4 (Shutoff) draws only 20 nA while preserving pin state. Its clock system integrates HFXO, LFXO, HFRCO, LFRCO, and ULFRCO oscillators with dynamic switching.
Autonomous operation is enabled by the Peripheral Reflex System (PRS), which allows direct inter-peripheral signaling without CPU intervention, and the Low Energy Sensor Interface (LESENSE), supporting capacitive and LC sensing in EM2. The device includes dual USARTs (one LEUART), I²C with SMBus support, 12-bit 1 Msps ADC, 12-bit 500 ksps DAC, three rail-to-rail op-amps, and hardware AES in 54/75 cycles for 128/256-bit keys.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | ARM Cortex-M3 @ 32 MHz, 1.25 DMIPS/MHz - enables real-time control with deterministic interrupt latency in resource-constrained edge nodes. |
| Memory | 32 kB Flash / 4 kB RAM - sufficient for firmware + sensor fusion algorithms with retained context across Stop mode wake-ups. |
| Lowest Power Mode | EM4 Shutoff: 20 nA @ 3 V - allows multi-year battery life in maintenance-free IoT endpoints with wake-on-pin or RTC alarm. |
| Wake-up Time | 2 µs from EM3 Stop mode - ensures rapid response to critical events (e.g., tamper detection in meters) without energy penalty. |
| Analog Peripherals | 12-bit 1 Msps ADC (8 SE/4 diff), 12-bit DAC, 3× op-amps (6.1 MHz GBW), 2× ACMP - supports precision analog front-end design without external signal conditioning. |
| Crypto Acceleration | Hardware AES-128/256 in 54/75 cycles - offloads encryption for secure OTA updates and encrypted sensor data transmission. |
| Supply Range | 1.98 V to 3.8 V - compatible with single-cell Li-ion, Li-SOCl₂, and alkaline battery configurations across temperature (-40°C to +85°C). |
Pinout & Package
EFM32TG225F32-D-BGA48R uses a 6 × 6 mm, 0.5 mm pitch, 48-ball BGA package (ball grid array) with 37 I/O pins, 4 power/ground balls, and dedicated debug (SWDIO/SWCLK) and reset pins. Pin functions are configurable via GPIO matrix and alternate function routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core & I/O Supply | Primary 1.98–3.8 V power input; decoupling required per BGA48 layout guidelines (Section 6.2, Rev. 2.12). |
| VSS | Digital Ground | Reference return for digital logic and I/O; must be connected to PCB ground plane with low-inductance path. |
| PA0–PA15, PB0–PB15, PC0–PC6 | General Purpose I/O | Configurable push-pull/open-drain with programmable pull-up/down; supports up to 56 total GPIO across packages (48-ball BGA maps 37 usable I/O). |
| SWDIO / SWCLK | Debug Interface | 2-pin Serial Wire Debug interface for programming and real-time debugging; operates in all energy modes except EM4. |
| RESET# | Active-Low Reset | Asynchronous reset input; internal POR/BOD ensures reliable startup across voltage ramp rates and brown-out conditions. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous PRS Network | Enables timer-triggered ADC sampling or UART transmission without CPU wake-up - reduces active time by >90% in periodic sensing tasks. |
| LEUART with 32.768 kHz Clock | Full-duplex UART communication at ≤9600 baud in EM2 Deep Sleep - eliminates need for external RTC or wake-up controller in battery-powered telemetry. |
| LESENSE Engine | Monitors up to 8 capacitive or LC sensors autonomously in EM2 - ideal for touchless UI or tank-level detection with <1 µA system quiescent current. |
| Hardware AES Accelerator | Performs AES-128 encryption in 54 cycles - enables sub-millisecond secure packet generation for LoRaWAN or NB-IoT uplinks. |
| Flexible Energy Modes (EM0–EM4) | EM3 Stop mode retains RAM/CPU state at 0.6 µA; EM2 Deep Sleep runs RTC + LEUART at 1.0 µA - simplifies power-state management in firmware. |
Applications
| Smart Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered water/gas meter with pulse counting, LCD display, and RF telemetry. IC Role / Device Role / Timing Role: Main system controller managing pulse accumulation (PCNT), segment LCD drive, LEUART-to-RF bridge, and secure data logging. Use Value: 20 nA EM4 shutdown extends 10-year battery life; hardware AES secures consumption data; PRS links PCNT overflow to RTC alarm for scheduled RF wake-up. |
Use Scenario: Wireless vibration/temperature node in predictive maintenance system. IC Role / Device Role / Timing Role: Signal acquisition hub interfacing MEMS accelerometer and thermistor via ADC, performing local FFT preprocessing, and transmitting via LEUART to gateway. Use Value: 1 Msps ADC captures high-frequency transients; LETIMER triggers periodic sampling in EM2; op-amps condition analog inputs without external components. |
| Home Automation Hub | Health & Fitness Wearable |
Use Scenario: Zigbee/Z-Wave coordinator with capacitive touch buttons and environmental sensing. IC Role / Device Role / Timing Role: Central interface managing I²C sensors (humidity, CO₂), capacitive touch (LESENSE), and USB/UART host bridge. Use Value: LESENSE detects button press in EM2 at <1 µA; integrated op-amps buffer sensor outputs; dual USARTs enable concurrent Zigbee stack and debug console. |
Use Scenario: Optical heart-rate monitor using photodiode array and ambient light rejection. IC Role / Device Role / Timing Role: Analog front-end controller driving LED current (DAC + op-amp), sampling photodiode (ADC), and processing PPG signals in real time. Use Value: 12-bit DAC sets precise LED intensity; synchronized ADC sampling avoids motion artifact; hardware AES encrypts health data before BLE transmission. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-energy microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EFM32TG225F16-D-BGA48 | 16 kB Flash / 4 kB RAM, same BGA48 package and pinout - reduced code space but identical peripheral set and energy characteristics. | Suitable for simpler firmware (e.g., basic sensor polling without OTA update stack) where 32 kB Flash overhead is unnecessary. | Select when firmware size <16 kB and cost sensitivity outweighs future scalability needs. |
| EFM32TG825F32-D-BGA48 | Same Flash/RAM, extended temperature range (-40°C to +125°C), enhanced analog performance (lower ADC noise, higher op-amp PSRR), and improved ESD rating (±4 kV HBM). | Required for under-hood automotive or industrial environments exceeding 85°C ambient; superior analog integrity for precision measurement. | Choose for high-reliability deployments where extended temp, robustness, or analog accuracy are mandatory - not a drop-in replacement due to qualification differences. |
Compared with EFM32TG225F32-D-BGA48R, the F16 variant offers identical low-power architecture at lower memory cost, while the TG825 variant adds thermal and analog robustness for harsh environments - neither is pin-compatible with non-BGA variants, and both require validation of flash layout and thermal derating.
Availability
EFM32TG225F32-D-BGA48R is available at Aetrix Electronics and suitable for smart metering, industrial sensor nodes, home automation hubs, and health & fitness wearables requiring stable component supply, long-term lifecycle assurance, and qualified BGA48 sourcing.
Supply support for EFM32TG225F32-D-BGA48R 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 mixed-signal ICs for IoT, industrial, and consumer applications.
The EFM32 Gecko family was designed specifically for energy-constrained embedded systems - prioritizing sub-µA sleep currents, fast wake-up, autonomous peripherals, and integrated analog to minimize external components in battery-powered devices.
FAQ
What is the maximum operating frequency and core type of the EFM32TG225F32-D-BGA48R?
The EFM32TG225F32-D-BGA48R features an ARM Cortex-M3 processor core rated for up to 32 MHz operation, delivering 1.25 DMIPS/MHz performance. This frequency is supported across its full supply range (1.98 V to 3.8 V) and temperature range (−40°C to +85°C), with timing validated per Silicon Labs' EFM32TG Data Sheet Rev. 2.12 Section 4.3.
Does the EFM32TG225F32-D-BGA48R support hardware cryptographic acceleration?
Yes, the EFM32TG225F32-D-BGA48R includes a dedicated hardware AES accelerator supporting both 128-bit and 256-bit key lengths, completing encryption in 54 or 75 clock cycles respectively. This module operates independently of the CPU and is accessible via the standard CMSIS crypto driver interface in the Simplicity Studio SDK.
What are the lowest power consumption modes supported by the EFM32TG225F32-D-BGA48R?
The EFM32TG225F32-D-BGA48R supports EM4 (Shutoff) mode at 20 nA @ 3 V with pin state retention, and EM3 (Stop) mode at 0.6 µA @ 3 V with RAM and CPU retention plus brown-out detection. Both modes are fully characterized in the Electrical Characteristics section (Rev. 2.12, Table 4.4.3 and 4.4.2) and require no external components to achieve specified current draw.
Can the EFM32TG225F32-D-BGA48R operate with a 32.768 kHz crystal for real-time clock functionality?
Yes, the EFM32TG225F32-D-BGA48R includes a dedicated Low Frequency Crystal Oscillator (LFXO) circuit that supports external 32.768 kHz crystals. The RTC remains fully operational in EM2 Deep Sleep mode at 1.0 µA, enabling accurate timekeeping during ultra-low-power operation without CPU involvement.
Is the EFM32TG225F32-D-BGA48R pin-compatible with other EFM32TG BGA48 variants?
Yes, all EFM32TG BGA48 variants - including EFM32TG225F32-D-BGA48R, EFM32TG225F16-D-BGA48, and EFM32TG825F32-D-BGA48 - share identical mechanical footprint, ball map, and pin functionality. Differences are limited to Flash/RAM size, temperature grade, and analog performance specs - no PCB redesign is needed when migrating between these BGA48 options.
EFM32TG225F32-D-BGA48R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- 48-VFBGA
- Series:
- Tiny Gecko
- Packaging:
- Tape & Reel (TR)
- 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, I2S, POR, PWM
- Number of I/O:
- 37
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.98V ~ 3.8V
- Data Converters:
- A/D 4x12b SAR; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
EFM32TG225F32-D-BGA48R FAQ
1.How can I place an order for EFM32TG225F32-D-BGA48R through Aetrix?
Please submit a Request for Quotation (RFQ) for EFM32TG225F32-D-BGA48R 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 EFM32TG225F32-D-BGA48R reliable?
The price and inventory of EFM32TG225F32-D-BGA48R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EFM32TG225F32-D-BGA48R is usually 5 days.
3.What payment methods are accepted for EFM32TG225F32-D-BGA48R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EFM32TG225F32-D-BGA48R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EFM32TG225F32-D-BGA48R?
EFM32TG225F32-D-BGA48R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EFM32TG225F32-D-BGA48R 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 EFM32TG225F32-D-BGA48R?
For technical support, including EFM32TG225F32-D-BGA48R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EFM32TG225F32-D-BGA48R requirements.
6.How does Aetrix verify that EFM32TG225F32-D-BGA48R is sourced from the original manufacturer or authorized distributors?
All EFM32TG225F32-D-BGA48R 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 EFM32TG225F32-D-BGA48R meets industry standards.
7.What is the process for return or replacement of EFM32TG225F32-D-BGA48R?
All EFM32TG225F32-D-BGA48R units undergo pre-shipment inspection (PSI). If there is an issue with EFM32TG225F32-D-BGA48R, 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 EFM32TG225F32-D-BGA48R part is unused and in its original packaging.
Return procedure for EFM32TG225F32-D-BGA48R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EFM32TG225F32-D-BGA48R Tags
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