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EFM8BB31F32G-B-QFN32R – Silicon Labs

Disclaimer: The image displayed serves as a mere illustration and does not provide precise specifications. For accurate details, We recommend referring to the official product data sheet.


In stock

Manufacturer Silicon Labs
Manufacturer Part No.EFM8BB31F32G-B-QFN32R – Silicon Labs
DescriptionIC MCU 8BIT 32KB FLASH 32QFN
Detailed DescriptionCIP-51 8051 Busy Bee Microcontroller IC 8-Bit 50MHz 32KB (32K x 8) FLASH 32-QFN (4x4)
DatasheetDatasheet Link

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Product Attributes

TypeIntegrated Circuits (ICs)
CategoryEmbedded Microcontrollers
ManufacturerSilicon Labs
SeriesBusy Bee
PackageTape & Reel (TR)
Product StatusNot For New Designs
Matkronics ProgrammableNot Verified
Core ProcessorCIP-51 8051
Core Size8-Bit
ConnectivityI2C, SMBus, SPI, UART/USART
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
Number of I/O29
Program Memory Size32KB (32K x 8)
Program Memory TypeFLASH
EEPROM SizeNot specified
RAM Size2.25K x 8
Voltage – Supply (Vcc/Vdd)2.2V ~ 3.6V
Data ConvertersA/D 20×10/12b SAR; D/A 2x12b
Oscillator TypeInternal
Operating Temperature-40°C ~ 85°C (TA)
Mounting TypeSurface Mount
Package / Case32-UFQFN Exposed Pad (32-QFN 4×4)
Supplier Device Package32-QFN (4×4)
Base Product NumberEFM8BB31

Product Information

Semiconductor Product Description: EFM8BB31F32G-B-QFN32R

The EFM8BB31F32G-B-QFN32R is a high-performance 8-bit microcontroller from Silicon Labs, designed for a wide range of applications in the electronics industry. This semiconductor product offers a unique combination of features and benefits that set it apart from other microcontrollers in the market.

Key Features:

  • 32-bit ARM Cortex-M0+ core for fast and efficient processing
  • 32 KB flash memory and 4 KB RAM for storing and executing code
  • Integrated peripherals including UART, SPI, I2C, and GPIO for versatile connectivity
  • Low power consumption for extended battery life in portable devices
  • High-speed analog-to-digital converters for accurate sensor data acquisition

Key Benefits:

  • Improved system performance and responsiveness
  • Reduced development time and cost with integrated peripherals
  • Extended battery life for energy-efficient devices
  • Precise sensor data for enhanced functionality and accuracy
  • Reliable operation in harsh environments with robust design


The EFM8BB31F32G-B-QFN32R is ideal for a wide range of applications, including IoT devices, smart home automation, industrial control systems, and wearable electronics. Its high-performance capabilities and low power consumption make it suitable for battery-powered devices that require efficient processing and connectivity.

Performance Advantages:

With its 32-bit ARM Cortex-M0+ core and integrated peripherals, the EFM8BB31F32G-B-QFN32R offers superior performance compared to traditional 8-bit microcontrollers. Its low power consumption and high-speed ADCs ensure reliable operation and accurate data acquisition in various applications.

Market Standout:

The EFM8BB31F32G-B-QFN32R stands out in the market for its combination of performance, efficiency, and versatility. Its advanced features and benefits make it a top choice for developers and engineers looking to design innovative and reliable electronic products.

Additional Info

Type Integrated Circuits (ICs) Category Embedded Microcontrollers Manufacturer Silicon Labs Series Busy Bee Package Tape & Reel (TR) Product Status Not For New Designs Matkronics Programmable Not Verified Core Processor CIP-51 8051 Core Size 8-Bit Speed 50MHz Connectivity I2C, SMBus, SPI, UART/USART Peripherals Brown-out Detect/Reset, POR, PWM, WDT Number of I/O 29 Program Memory Size […]

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