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Silicon Labs EFM32TG11B120F128IQ64-B
- Part No.:
- EFM32TG11B120F128IQ64-B
- Manufacturer:
- Silicon Labs
- Category:
- Microcontrollers
- Package:
- 64-TQFP
- Datasheet:
-
EFM32TG11B120F128IQ64-B.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 64TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,767
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Product details
Overview
EFM32TG11B120F128IQ64-B from Silicon Labs is a 32-bit ARM Cortex-M0+ microcontroller operating at up to 48 MHz, featuring 128 kB flash, 32 kB RAM, CAN 2.0B controller (1 Mbps), hardware cryptographic engine (AES-256, ECC, SHA-256, TRNG), and ultra-low-power operation (1.30 µA in EM2 Deep Sleep with RTCC running). It targets battery-powered smart energy meters and industrial IoT edge nodes requiring secure, low-energy sensing and communication.
For engineers reviewing the EFM32TG11B120F128IQ64-B datasheet, EFM32TG11B120F128IQ64-B pinout, EFM32TG11B120F128IQ64-B application, or EFM32TG11B120F128IQ64-B equivalent, key selection criteria include its -40 °C to +125 °C extended temperature grade, TQFP64 package with 50 GPIOs, absence of integrated DC-DC converter and LCD controller, and CAN/LESENSE/CRYOTIMER support for autonomous wake-up in harsh environments.
Technical Context
The EFM32TG11B120F128IQ64-B implements a dual-domain energy management architecture with EM2–EM4H sleep modes enabling peripheral operation during deep sleep - including CRYOTIMER wakeup, LESENSE autonomous sensor monitoring, and CAN bus activity detection. Its clock system integrates HFXO/LFXO crystals plus HFRCO/AUXHFRCO/LFRCO/ULFRCO RC oscillators, with DPLL-assisted frequency stabilization for timing-critical CAN and ADC sampling.
Security is enforced via a dedicated CRYPTO accelerator supporting AES-128/256, ECC (P192/P256/B163), SHA-1/SHA-224/SHA-256, and TRNG, coordinated by the Security Management Unit (SMU) for fine-grained peripheral access control. Analog subsystem includes 12-bit 1 Msps ADC, dual 12-bit 500 ksamples/s VDACs, four OPAMPs, two ACMPs, and robust capacitive sensing (CSEN) with up to 38 inputs and wake-on-touch capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0+ @ 48 MHz - deterministic real-time execution with MPU for memory protection in safety-critical firmware. |
| Memory | 128 kB flash / 32 kB RAM - sufficient for secure bootloader, OTA update staging, and multi-sensor fusion algorithms without external memory. |
| Power Consumption | 1.30 µA in EM2 Deep Sleep (8 kB RAM retention + RTCC) - enables >10-year battery life in metering applications using coin-cell or primary Li-SOCl₂ cells. |
| CAN Interface | CAN 2.0A/B controller up to 1 Mbps - supports industrial fieldbus integration and automotive-grade diagnostics without external transceiver logic. |
| Cryptography | AES-256, ECC P256, SHA-256, TRNG - enables FIPS-compliant key generation, firmware signature verification, and secure device attestation. |
| Temperature Range | -40 °C to +125 °C junction - qualified for under-hood automotive sensors, industrial motor drives, and outdoor utility meter deployments. |
| I/O Capability | 50 GPIO pins, 5 V tolerant on select pins - simplifies level-shifting in mixed-voltage systems interfacing with legacy 5 V sensors or actuators. |
Pinout & Package
TQFP64 (10 × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, lead-free finish; rated for extended temperature operation (-40 °C to +125 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply input | 1.8–3.8 V main power rail; powers core, digital peripherals, and I/O banks - requires local 100 nF decoupling per VDD pin. |
| AVDD | Analog supply input | Independent 1.8–3.8 V rail for ADC, DAC, OPAMP, and ACMP - must be filtered separately from VDD to maintain SNR >70 dB. |
| PA0–PA15 | Port A general-purpose I/O | Configurable as GPIO, USART0/1 TX/RX, I²C0 SDA/SCL, CAN0 TX/RX, or analog inputs via APORT - supports glitch filtering and pull-up/down. |
| PC0–PC15 | Port C general-purpose I/O | Includes CRYOTIMER output, LETIMER0 channels, PCNT0 inputs, and LESENSE channel assignments - enables autonomous low-energy sensor polling. |
| PD0–PD15 | Port D general-purpose I/O | Supports USB interface (if enabled), RTCC crystal connections (LFXTAL_P/N), and backup domain signals (BU_VIN/BU_VOUT) - critical for fail-safe timekeeping during main power loss. |
| RESETn | Active-low reset input | Asynchronous reset assertion resets all logic except backup domain; internal pull-up ensures reliable startup without external resistor. |
| SWDIO/SWCLK | Serial Wire Debug interface | 2-pin debug port supporting programming, real-time trace (MTB), and energy profiling - occupies minimal PCB area versus JTAG. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous LESENSE | Monitors up to 16 capacitive or LC sensors in EM2 without CPU intervention - reduces average current in occupancy detection or flow metering by >95%. |
| CRYOTIMER | 32-bit ultra-low-energy timer with sub-second resolution - wakes device from EM4S every 100 ms to sample temperature or check CAN bus activity, extending battery life. |
| Hardware CRC Engine | Single-cycle 8/16/32-bit CRC computation with programmable polynomial - validates firmware images and sensor data packets in <1 µs, freeing CPU cycles. |
| Flexible APORT Routing | Maps ADC, ACMP, OPAMP, and VDAC channels to any analog-capable GPIO - eliminates fixed-function pin constraints in compact PCB layouts. |
| Secure Bootloader | Pre-programmed UART bootloader with configurable security lockbits - enables field firmware updates while preventing unauthorized code execution or flash readout. |
Applications
| Smart Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Residential electricity meter with tamper detection, load profiling, and HAN communication via CAN bus. IC Role / Device Role / Timing Role: Main MCU executing metrology algorithms, managing CAN-based DLMS/COSEM protocol stack, and driving real-time clock/calendar with RTCC. Use Value: 1.30 µA EM2 current enables >15-year battery backup for timekeeping during mains outage; CSEN detects enclosure opening with <5 µA active current. | Use Scenario: Wireless vibration sensor on rotating machinery, logging acceleration data and transmitting alerts via CAN to PLC. IC Role / Device Role / Timing Role: Edge AI inference node performing FFT-based anomaly detection, with CRYOTIMER-triggered wake-up and LESENSE-monitored piezo sensor biasing. Use Value: Autonomous LESENSE + CRYOTIMER reduces average power to 8 µA, enabling 3-year operation on single AA cell; CAN 1 Mbps supports real-time fault reporting. |
| Automotive Body Control | Medical Wearable Monitor |
Use Scenario: Under-hood ambient temperature and humidity monitor with CAN FD gateway functionality for EV thermal management. IC Role / Device Role / Timing Role: CAN controller interfacing with HVAC and battery management systems; OPAMPs condition thermistor and humidity sensor outputs. Use Value: -40 °C to +125 °C rating ensures reliability in engine bay; hardware TRNG seeds secure session keys for encrypted CAN message authentication. | Use Scenario: Patch-style ECG monitor with dry-electrode contact detection and Bluetooth LE coexistence. IC Role / Device Role / Timing Role: Signal acquisition MCU digitizing analog ECG path via 12-bit ADC, applying digital filtering, and managing BLE HCI over UART. Use Value: 12-bit 1 Msps ADC captures R-wave morphology at 500 ksps; 5 V-tolerant GPIOs simplify connection to external BLE module's 5 V UART interface. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EFM32PG12B500F1024GL125-B | ARM Cortex-M4, 1024 kB flash, 256 kB RAM, integrated DC-DC, no CAN, higher performance but 3× EM2 current (3.8 µA) | Better suited for complex motor control or audio processing; lacks CAN for fieldbus integration | Select when computational throughput outweighs battery life and CAN is unnecessary. |
| STM32G071RBT6 | ARM Cortex-M0+, 128 kB flash, 36 kB RAM, CAN 2.0B, 1.8 µA Stop mode, no hardware crypto accelerator or CSEN | Lower security assurance; requires software AES implementation; no autonomous capacitive sensing | Select for cost-sensitive CAN nodes where cryptographic offload and touch sensing are not required. |
Compared with EFM32PG12B500F1024GL125-B and STM32G071RBT6, the EFM32TG11B120F128IQ64-B uniquely balances ultra-low EM2 current (1.30 µA), integrated CAN, hardware crypto, and CSEN - making it optimal for long-life, secure, sensor-rich industrial endpoints where layout space and BOM count are constrained.
Availability
EFM32TG11B120F128IQ64-B is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor nodes, automotive body electronics, and medical wearable monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for EFM32TG11B120F128IQ64-B 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 SoCs, timing solutions, and secure MCU platforms for IoT and industrial applications.
The EFM32 Tiny Gecko Series 1 product line was designed for battery-operated edge devices demanding high performance with ultra-low energy consumption - particularly in smart metering, industrial automation, and portable medical equipment.
FAQ
What is the maximum operating frequency of the EFM32TG11B120F128IQ64-B?
The EFM32TG11B120F128IQ64-B operates at up to 48 MHz using its ARM Cortex-M0+ core. This frequency is achievable with the internal HFRCO oscillator (calibrated and DPLL-stabilized) or external HFXO crystal. The device maintains full peripheral functionality-including CAN, ADC, and crypto-at this speed, with timing margins verified across the -40 °C to +125 °C temperature range specified for the EFM32TG11B120F128IQ64-B.
Does the EFM32TG11B120F128IQ64-B include an integrated DC-DC converter?
No, the EFM32TG11B120F128IQ64-B does not include an integrated DC-DC converter. Per the ordering code suffix 'B120', this variant is part of the 'Basic' feature set without DC-DC. Devices with 'B520' or 'B320' suffixes include the DC-DC buck converter. The EFM32TG11B120F128IQ64-B relies on linear regulation only, making it suitable for applications where input voltage is stable and efficiency requirements are met by LDO-based power design.
What peripherals remain active in EM2 Deep Sleep mode for the EFM32TG11B120F128IQ64-B?
In EM2 Deep Sleep mode, the EFM32TG11B120F128IQ64-B retains operation of the RTCC, CRYOTIMER, LESENSE, PCNT, and CAN bus controller - all powered from the low-frequency domain. Up to 8 kB of RAM remains retained. This enables autonomous wake-up events such as periodic timer interrupts, capacitive touch detection, pulse counting from flow meters, or CAN message reception without CPU involvement, sustaining the 1.30 µA current spec for the EFM32TG11B120F128IQ64-B.
Is the EFM32TG11B120F128IQ64-B pin-compatible with other EFM32TG11 variants in TQFP64?
Yes, the EFM32TG11B120F128IQ64-B shares identical pinout and footprint with all other EFM32TG11x variants in the TQFP64 package (e.g., EFM32TG11B520F128IQ64-B, EFM32TG11B320F128IQ64-B), as confirmed in Section 5.5 "EFM32TG11B1xx in QFP64 Device Pinout" of the official datasheet. Functionality differences (e.g., DC-DC presence, LCD support) are implemented internally and do not affect pin assignment or electrical characteristics.
What security features are hardware-accelerated in the EFM32TG11B120F128IQ64-B?
The EFM32TG11B120F128IQ64-B includes a dedicated CRYPTO peripheral that hardware-accelerates AES-128/256 encryption/decryption, ECC scalar multiplication (B163, P192, P256), SHA-1 and SHA-224/SHA-256 hashing, and True Random Number Generation (TRNG). These functions execute independently of the CPU, reducing latency and power versus software-only implementations - a critical advantage for secure boot, firmware signing, and TLS handshake acceleration in the EFM32TG11B120F128IQ64-B.
EFM32TG11B120F128IQ64-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- 64-TQFP
- Series:
- Tiny Gecko 1
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- ARM® Cortex®-M0+
- Core Size:
- 32-Bit Single-Core
- Speed:
- 48MHz
- Connectivity:
- CANbus, I2C, IrDA, LINbus, SmartCard, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT
- Number of I/O:
- 53
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 32K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.8V
- Data Converters:
- A/D 12bit SAR; D/A 12bit
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
EFM32TG11B120F128IQ64-B FAQ
1.How can I place an order for EFM32TG11B120F128IQ64-B through Aetrix?
Please submit a Request for Quotation (RFQ) for EFM32TG11B120F128IQ64-B 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 EFM32TG11B120F128IQ64-B reliable?
The price and inventory of EFM32TG11B120F128IQ64-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EFM32TG11B120F128IQ64-B is usually 5 days.
3.What payment methods are accepted for EFM32TG11B120F128IQ64-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EFM32TG11B120F128IQ64-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EFM32TG11B120F128IQ64-B?
EFM32TG11B120F128IQ64-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EFM32TG11B120F128IQ64-B 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 EFM32TG11B120F128IQ64-B?
For technical support, including EFM32TG11B120F128IQ64-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EFM32TG11B120F128IQ64-B requirements.
6.How does Aetrix verify that EFM32TG11B120F128IQ64-B is sourced from the original manufacturer or authorized distributors?
All EFM32TG11B120F128IQ64-B 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 EFM32TG11B120F128IQ64-B meets industry standards.
7.What is the process for return or replacement of EFM32TG11B120F128IQ64-B?
All EFM32TG11B120F128IQ64-B units undergo pre-shipment inspection (PSI). If there is an issue with EFM32TG11B120F128IQ64-B, 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 EFM32TG11B120F128IQ64-B part is unused and in its original packaging.
Return procedure for EFM32TG11B120F128IQ64-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EFM32TG11B120F128IQ64-B Tags
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