EFM32TG11B120F128IM64-AR

Microcontrollers Overview

The EFM32TG11B120F128IM64-AR is a 32-bit microcontroller from Silicon Labs based on the ARM Cortex-M0+ core, operating at up to 48 MHz. It features 128 kB of flash program memory and 32 kB of RAM data memory. The device operates within a supply voltage range of 1.8 V to 3.8 V and supports an extended temperature grade from -40 °C to +125 °C. It is housed in a QFN64 package with 56 general-purpose I/O pins. This specific variant does not include an integrated DC-DC converter or an LCD controller.

Microcontrollers Feature Summary

• Integrated CAN bus controller supporting versions 2.0A and 2.0B for reliable communication
• Hardware cryptographic engine providing AES, ECC, SHA, and True Random Number Generator (TRNG) capabilities
• Ultra-low power operation with deep sleep current as low as 1.30 µA when RTCC and RAM are active
• Robust capacitive sensing technology with wake-on-touch functionality

Microcontrollers Applications

• Smart energy meters
• Industrial and factory automation systems
• Home automation and security devices
• Entry-level wearable electronics
• Personal medical devices

Microcontrollers Procurement Notes

Verify the ordering suffix AR indicates tape and reel packaging rather than tray. Confirm the IM designation matches the required extended temperature range of -40 °C to +125 °C. Ensure the B120 feature set code aligns with the absence of a DC-DC converter and LCD controller in your design requirements.

Microcontrollers Selection Notes

Select this part when a balance of moderate memory capacity and robust connectivity is needed without the overhead of display drivers. The lack of a DC-DC converter makes it suitable for applications where external inductors must be avoided or where simpler power architectures are preferred. Verify GPIO count sufficiency against pinout constraints.

Microcontrollers Part Context

This component belongs to the EFM32 Tiny Gecko Series 1 family, designed for energy-efficient IoT applications. It shares the same core architecture and peripheral sets as other TG11 variants but differs in memory size, package type, and specific feature inclusion such as the DC-DC converter and LCD controller availability.

Microcontrollers Replacement Considerations

EFM32TG11B120F128IM64-B serves as the non-reel equivalent. For footprint compatibility, consider other QFN64 packages within the TG11 family, ensuring feature alignment regarding DC-DC presence and temperature grade.