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Silicon Labs EFM32TG11B520F128IQ80-B
- Part No.:
- EFM32TG11B520F128IQ80-B
- Manufacturer:
- Silicon Labs
- Category:
- Microcontrollers
- Package:
- 80-TQFP
- Datasheet:
-
EFM32TG11B520F128IQ80-B.pdf
- Description:
- IC MCU 32BIT 128KB FLASH 80TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,272
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Product details
Overview
EFM32TG11B520F128IQ80-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, integrated DC-DC converter, CAN 2.0 controller (up to 1 Mbps), and hardware cryptographic engine (AES-128/256, ECC, SHA-224/256, TRNG). It delivers 37 µA/MHz active current and 1.30 µA deep-sleep current with RTCC running - optimized for battery-powered smart energy meters and industrial IoT edge nodes.
For engineers reviewing the EFM32TG11B520F128IQ80-B datasheet, EFM32TG11B520F128IQ80-B pinout, EFM32TG11B520F128IQ80-B application, or EFM32TG11B520F128IQ80-B equivalent, this page provides verified technical context, validated pin functions, real-world use cases in extended-temperature industrial systems, and confirmed alternative parts for design continuity.
Technical Context
The EFM32TG11B520F128IQ80-B implements a dual-domain power architecture with independent EM2/EM3 peripheral subdomains - enabling selective shutdown of ACMP, PCNT, CSEN, LEUART, and I²C peripherals during deep sleep. Its Clock Management Unit (CMU) supports six oscillators (HFXO, LFXO, HFRCO, AUXHFRCO, LFRCO, ULFRCO), with DPLL-assisted HFRCO calibration for stable timing across voltage and temperature.
It integrates a 12-bit 1 Msps ADC with on-chip temperature sensor, two 12-bit 500 ksamples/s VDACs, four operational amplifiers, and a patented low-energy LCD controller supporting up to 8×32 segments - all accessible via flexible Analog Port (APORT) routing. The Peripheral Reflex System (PRS) enables autonomous inter-peripheral signaling without CPU intervention in EM2.
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 stack, and dual-bank firmware validation. |
| Power Modes | EM2 Deep Sleep: 1.30 µA (8 kB RAM retention + RTCC) - enables multi-year battery life in metering applications. |
| CAN Interface | CAN 2.0A/B controller, 1 Mbps - supports industrial fieldbus communication without external transceiver logic. |
| Cryptography | Hardware AES-128/256, ECC (P192/P256), SHA-224/256, TRNG - accelerates TLS handshake and firmware signature verification. |
| Package & Temp | TQFP80 (12×12 mm), -40°C to +125°C junction - qualified for under-hood automotive sensors and high-temp industrial control. |
| Analog Peripherals | 12-bit ADC (1 Msps), 2× VDAC (500 ksamples/s), 4× OPAMP, CSEN (38 inputs) - enables direct sensor signal conditioning and capacitive touch HMI. |
Pinout & Package
TQFP80 package (12×12 mm, 0.5 mm pitch) with exposed thermal pad; rated for extended temperature operation (-40°C to +125°C TJ).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Digital supply input | 1.8–3.8 V main power rail; powers core, digital peripherals, and GPIOs. |
| AVDD | Analog supply input | Independent 1.8–3.8 V rail for ADC, DAC, OPAMP, and comparators - reduces digital noise coupling. |
| IOVDD0 | I/O voltage reference | Configurable 1.8–3.8 V rail; sets logic thresholds and enables 5 V-tolerant operation on select pins. |
| RESETn | Active-low reset input | Asynchronous hardware reset; supports external pull-up and debounced push-button interface. |
| SWDIO / SWCLK | Debug interface signals | 2-pin Serial Wire Debug - enables programming and real-time debugging without JTAG overhead. |
| CAN_TX / CAN_RX | CAN bus physical layer interface | Dedicated differential pair for CAN 2.0A/B; requires external transceiver (e.g., ISO1050) for bus connection. |
| PC0–PC7, PD0–PD7, etc. | General-purpose I/O | 63 configurable GPIOs with programmable drive strength, pull-up/down, glitch filter, and PRS routing. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated DC-DC buck converter | Delivers up to 200 mA system power at >90% efficiency in EM0–EM3 - eliminates need for external PMIC in space-constrained designs. |
| Low-energy LCD controller | Drives up to 8×32 segments with built-in voltage boost and contrast control - enables ultra-low-power segment displays in utility meters. |
| LESENSE autonomous sensing | Monitors up to 16 LC or capacitive sensors in EM2 without CPU wake-up - ideal for tamper detection and occupancy sensing. |
| Peripheral Reflex System (PRS) | Enables hardware-triggered data flow between peripherals (e.g., ADC → DMA → CRYPTO) - reduces CPU load and latency in sensor fusion. |
| Backup domain with RTCC | RTCC and retention registers remain powered from BU_VIN during main supply loss - maintains timekeeping and state in shutoff mode. |
Applications
| Smart Energy Metering | Industrial CAN Edge Node |
|---|---|
|
Use Scenario: Utility-grade electricity meter with tariff switching, tamper detection, and remote firmware updates via cellular backhaul. IC Role / Device Role / Timing Role: Primary application MCU managing metrology ADC sampling, secure boot, CAN-based local HAN communication, and RTC-backed billing cycles. Use Value: 1.30 µA EM2 current extends lithium-thionyl chloride battery life beyond 15 years; hardware crypto ensures FIPS 140-2 Level 1 compliance for firmware signing. |
Use Scenario: DIN-rail mounted PLC I/O module collecting analog sensor data and relaying commands over industrial CAN bus. IC Role / Device Role / Timing Role: Real-time controller interfacing 4–20 mA transmitters, driving isolated digital outputs, and executing deterministic CAN message scheduling. Use Value: CAN controller with 32-message FIFO and timestamping enables jitter-free cyclic messaging at 500 kbps; -40°C to +125°C rating ensures operation in uncooled enclosures. |
| Extended-Temp Home Security Hub | Low-Power Wearable Medical Sensor |
|
Use Scenario: Battery-powered security panel with capacitive touch keypad, door/window contact monitoring, and encrypted Zigbee-to-CAN bridge. IC Role / Device Role / Timing Role: Secure host processor handling touch UI, sensor event aggregation, and AES-encrypted packet forwarding to gateway. Use Value: Robust CSEN with wake-on-touch reduces average system current to <5 µA; SMU enforces privilege separation between UI and comms stacks. |
Use Scenario: Disposable ECG patch transmitting biopotential waveforms via BLE, requiring multi-week operation on coin cell. IC Role / Device Role / Timing Role: Signal acquisition MCU performing analog front-end conditioning (OPAMP + ADC), motion artifact filtering, and secure BLE packet prep. Use Value: Integrated OPAMPs and 12-bit ADC eliminate external signal chain components; EM2 wake-up time <2 µs ensures no sample loss during R-wave detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar low-power MCU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EFM32PG12B500F1024GL125-B | ARM Cortex-M4, 1024 kB flash, no CAN, higher active current (65 µA/MHz), QFN64 package | Better DSP performance for audio processing; lacks CAN and extended-temp qualification | Select when floating-point math or larger code footprint is required, and CAN is handled externally. |
| STM32L4A6VGT6 | ARM Cortex-M4, 1024 kB flash, CAN FD, 1.71–3.6 V supply, LQFP100 package, -40°C to +85°C | Supports CAN FD and USB OTG; lower max junction temperature limits deployment in high-ambient environments | Choose for USB-connected gateways or where CAN FD bandwidth (>5 Mbps) is mandatory. |
Compared with EFM32TG11B520F128IQ80-B, the EFM32PG12B500F1024GL125-B offers higher compute throughput but sacrifices CAN integration and extended-temperature operation; the STM32L4A6VGT6 adds CAN FD and USB but lacks the 125°C rating and ultra-low EM2 current critical for sealed industrial meters.
Availability
EFM32TG11B520F128IQ80-B is available at Aetrix Electronics and suitable for smart energy metering, industrial CAN edge nodes, and extended-temperature home security hubs requiring stable component supply across long production lifecycles.
Supply support for EFM32TG11B520F128IQ80-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 and mixed-signal ICs for IoT, industrial, and consumer applications.
The EFM32 Tiny Gecko Series 1 product line was designed specifically for battery-operated and energy-constrained embedded systems - emphasizing ultra-low active and sleep currents, autonomous peripheral operation, and integrated security primitives.
FAQ
What is the maximum operating temperature specification for EFM32TG11B520F128IQ80-B?
The EFM32TG11B520F128IQ80-B is rated for a junction temperature range of -40°C to +125°C, making it suitable for under-hood automotive sensors, industrial motor drives, and utility metering equipment deployed in uncontrolled ambient environments. This extended grade is confirmed in Table 2.1 of the official EFM32TG11 Family Data Sheet Rev. 1.0.
Does EFM32TG11B520F128IQ80-B include a hardware CAN controller?
Yes, the EFM32TG11B520F128IQ80-B integrates a full CAN 2.0A/B controller supporting bit rates up to 1 Mbps, with 32-message FIFO, timestamping, and automatic retransmission. It requires an external CAN transceiver (e.g., ISO1050 or TJA1042) for physical layer connection - no additional protocol stack IC is needed.
How much SRAM is available on EFM32TG11B520F128IQ80-B, and is it retained in deep sleep?
The EFM32TG11B520F128IQ80-B includes 32 kB of on-chip RAM. In EM2 Deep Sleep mode, up to 8 kB of RAM remains powered and retained while consuming only 1.30 µA - sufficient for preserving cryptographic keys, sensor history buffers, and RTCC calendar state without external backup memory.
What oscillator sources are available for the real-time counter (RTCC) in EFM32TG11B520F128IQ80-B?
The RTCC in EFM32TG11B520F128IQ80-B can be clocked by the 32.768 kHz LFXO crystal oscillator or the internal LFRCO RC oscillator. For highest accuracy in metering applications, the LFXO is recommended; the LFRCO provides ±5% accuracy and enables crystal-free operation in cost-sensitive designs.
Is the EFM32TG11B520F128IQ80-B pin-compatible with other EFM32TG11 variants in TQFP80 packaging?
Yes - all EFM32TG11B5xx devices in TQFP80 packaging (e.g., EFM32TG11B520F128GQ80-B, EFM32TG11B540F64IQ80-B) share identical pinouts and mechanical footprints. Differences are limited to flash/RAM size, DC-DC enable, LCD support, and temperature grade - enabling scalable design reuse across product tiers.
EFM32TG11B520F128IQ80-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Silicon Labs
- Package/Case:
- 80-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, LCD, POR, PWM, WDT
- Number of I/O:
- 63
- 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:
EFM32TG11B520F128IQ80-B FAQ
1.How can I place an order for EFM32TG11B520F128IQ80-B through Aetrix?
Please submit a Request for Quotation (RFQ) for EFM32TG11B520F128IQ80-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 EFM32TG11B520F128IQ80-B reliable?
The price and inventory of EFM32TG11B520F128IQ80-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EFM32TG11B520F128IQ80-B is usually 5 days.
3.What payment methods are accepted for EFM32TG11B520F128IQ80-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EFM32TG11B520F128IQ80-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EFM32TG11B520F128IQ80-B?
EFM32TG11B520F128IQ80-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EFM32TG11B520F128IQ80-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 EFM32TG11B520F128IQ80-B?
For technical support, including EFM32TG11B520F128IQ80-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EFM32TG11B520F128IQ80-B requirements.
6.How does Aetrix verify that EFM32TG11B520F128IQ80-B is sourced from the original manufacturer or authorized distributors?
All EFM32TG11B520F128IQ80-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 EFM32TG11B520F128IQ80-B meets industry standards.
7.What is the process for return or replacement of EFM32TG11B520F128IQ80-B?
All EFM32TG11B520F128IQ80-B units undergo pre-shipment inspection (PSI). If there is an issue with EFM32TG11B520F128IQ80-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 EFM32TG11B520F128IQ80-B part is unused and in its original packaging.
Return procedure for EFM32TG11B520F128IQ80-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
EFM32TG11B520F128IQ80-B Tags
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ATTINY4-TSHR
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ATTINY10-TSHR
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ATTINY202-SSNR
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PIC16F15213T-I/MF
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PIC10F200T-I/OT
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ATTINY412-SSNR
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ATTINY404-SSNR
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