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EFM8BB31F16I-C-5QFN32R – 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.EFM8BB31F16I-C-5QFN32R – Silicon Labs
DescriptionIC MCU 8BIT 16KB FLASH 32QFN
Detailed DescriptionCIP-51 8051 Busy Bee Microcontroller IC 8-Bit 50MHz 16KB (16K x 8) FLASH 32-QFN (5x5)
DatasheetDatasheet Link

Key Stats

71% Customers retention rate

Customers from 12 countries

6 Industries

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 Size16KB (16K 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 ~ 125°C (TA)
Mounting TypeSurface Mount
Package / Case32-WFQFN Exposed Pad (32-QFN 5×5)
Supplier Device Package32-QFN (5×5)
Base Product NumberEFM8BB31

Product Information

Semiconductor Product Description: EFM8BB31F16I-C-5QFN32R

The EFM8BB31F16I-C-5QFN32R 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:

  • 8-bit microcontroller with a maximum operating frequency of 50 MHz
  • 16 KB of flash memory and 2 KB of RAM for storing program code and data
  • Integrated peripherals including UART, SPI, I2C, and GPIO for versatile connectivity options
  • Low power consumption for extended battery life in portable devices
  • Compact QFN32 package for space-constrained applications

Key Benefits:

  • High performance and efficiency for demanding applications
  • Flexible connectivity options for seamless integration with other devices
  • Low power consumption for energy-efficient operation
  • Compact form factor for easy integration into small electronic devices
  • Reliable and robust design for long-term durability


The EFM8BB31F16I-C-5QFN32R microcontroller is ideal for a wide range of applications, including IoT devices, smart home appliances, industrial automation, consumer electronics, and more. Its high performance, low power consumption, and versatile connectivity options make it suitable for various embedded systems projects.

Performance Advantages:

With a maximum operating frequency of 50 MHz and integrated peripherals, the EFM8BB31F16I-C-5QFN32R offers superior performance compared to other 8-bit microcontrollers in its class. Its low power consumption and compact form factor further enhance its efficiency and versatility in different applications.

Standout Features:

The EFM8BB31F16I-C-5QFN32R stands out in the market due to its combination of high performance, low power consumption, compact design, and versatile connectivity options. It is a reliable and cost-effective solution for developers looking to create innovative electronic devices with advanced features and functionality.

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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