Silicon Labs

EFM8BB50 8-Bit MCU

Silicon Labs' MCUs offer high value by integrating advanced analog and communications peripherals into small packages

Image of Silicon Labs' EFM8BB50 8-Bit MCUSilicon Labs' EFM8BB50 (part of the wide supply 5 V EFM8 family of MCUs) is a multi-purpose line of 8-bit microcontrollers with a comprehensive feature set in small packages. These devices offer high value by integrating advanced analog and communications peripherals into small packages, making them ideal for space-constrained applications. With an efficient 8051 core, 5 V capable I/O, precision analog, and enhanced pulse-width modulation, the EFM8BB50 family is also optimal for embedded applications.

Silicon Labs' EFM8BB50 Pro kit (BB50-PK5208A) is an ideal starting point for application development on the EFM8BB50 8-bit microcontroller family. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM8BB50 microcontroller. Additionally, the board is a fully featured debugger and energy monitoring tool that can be used with external applications.

Silicon Labs' EFM8BB50 explorer kit (BB50-EK2702A) is an ideal, obstacle-free evaluation starting point for the EFM8BB50 8-bit microcontroller family. It offers Qwiic and Click connectors for rapid prototyping as well as an onboard debugger. All pins are brought out with minimal conflicts to enable quick development.

EFM8BB50 5 V EFM8 family of MCUs
  • Pipelined 8-bit C8051 core with 50 MHz maximum operating frequency
  • Up to 12 multifunction, 5 V capable I/O pins
  • One 12-bit analog-to-digital converter
  • Integrated temperature sensor
  • 3-channel PCA w/PWM
  • 3-channel PWM engine
  • Four 16-bit timers
  • Two 8-bit timers
  • UART
  • SMBus/I2C
  • SPI with 4-byte FIFO
  • Priority crossbar for flexible pin mapping
  • Four configurable logic units
  • QFN packages as small as 2 mm x 2 mm
EFM8BB50 Pro kit BB50-PK5208A
  • USB connectivity
  • Advanced energy monitor (AEM)
  • SEGGER J-Link on-board debugger
  • Debug multiplexer supporting external hardware as well as on-board MCU
  • User push buttons and RGB LED
  • Silicon Labs' Si7021 relative humidity and temperature sensor
  • Ultra-low power 128 px x 128 px memory LCD
  • 8-direction analog joystick
  • 20-pin 2.54 mm header for expansion boards
  • Breakout pads for direct access to I/O pins
  • Power sources include USB and CR2032 coin cell battery
Explorer kit BB50-EK2702A
  • Small form factor kit
    • Aligned with breadboard dimensions
  • Onboard board controller
    • J-link debugger
    • Virtual COM with hardware flow control
  • User interface features
    • One button (with EM2 wakeup)
    • One LED
  • USB micro-B connector for debug connection
  • Mini simplicity debug connector (SLSDA001A compatible) with access to:
    • AEM
    • VCOM
    • C2 Debug
  • Third-party add-on connectors
    • mikroBus socket
    • Qwiic connector
Applications
  • Toys
  • Power tools
  • Medical devices
  • Smoke alarms
  • Security
  • Personal care
  • Home appliances
  • Automotive

EFM8BB50 8-Bit MCUs

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
5 VOLT 8051 50 MHZ 8 KB FLASH 0.EFM8BB50F8G-A-QFN125 VOLT 8051 50 MHZ 8 KB FLASH 0.0 - Immediate$3.60View Details
IC MCU 8BIT 4KB FLASH QFN12EFM8BB50F4G-A-QFN12IC MCU 8BIT 4KB FLASH QFN1252 - Immediate$4.69View Details
IC MCU 8BIT 4KB FLASH QFN16EFM8BB50F4G-A-QFN16IC MCU 8BIT 4KB FLASH QFN1631 - Immediate$4.94View Details
IC MCU 8BIT 4KB FLASH SOIC16EFM8BB50F4G-A-SOIC16IC MCU 8BIT 4KB FLASH SOIC16956 - Immediate$5.93View Details
IC MCU 8BIT 8KB FLASH QFN16EFM8BB50F8G-A-QFN16IC MCU 8BIT 8KB FLASH QFN16200 - Immediate$5.52View Details
IC MCU 8BIT 8KB FLASH SOIC16EFM8BB50F8G-A-SOIC16IC MCU 8BIT 8KB FLASH SOIC16951 - Immediate$6.75View Details
IC MCU 8BIT 16KB FLASH QFN12EFM8BB50F16G-A-QFN12IC MCU 8BIT 16KB FLASH QFN121755 - Immediate$5.93View Details
IC MCU 8BIT 16KB FLASH QFN16EFM8BB50F16G-A-QFN16IC MCU 8BIT 16KB FLASH QFN161004 - Immediate$6.09View Details
IC MCU 8BIT 16KB FLASH SOIC16EFM8BB50F16G-A-SOIC16IC MCU 8BIT 16KB FLASH SOIC161854 - Immediate$7.33View Details
IC MCU 8BIT 4KB FLASH QFN12EFM8BB50F4I-A-QFN12IC MCU 8BIT 4KB FLASH QFN12135 - Immediate$4.94View Details
IC MCU 8BIT 4KB FLASH QFN16EFM8BB50F4I-A-QFN16IC MCU 8BIT 4KB FLASH QFN16200 - Immediate$5.10View Details
IC MCU 8BIT 4KB FLASH SOIC16EFM8BB50F4I-A-SOIC16IC MCU 8BIT 4KB FLASH SOIC16959 - Immediate$6.09View Details
IC MCU 8BIT 8KB FLASH QFN12EFM8BB50F8I-A-QFN12IC MCU 8BIT 8KB FLASH QFN12145 - Immediate$5.52View Details
IC MCU 8BIT 8KB FLASH QFN16EFM8BB50F8I-A-QFN16IC MCU 8BIT 8KB FLASH QFN16135 - Immediate$5.76View Details
IC MCU 8BIT 8KB FLASH SOIC16EFM8BB50F8I-A-SOIC16IC MCU 8BIT 8KB FLASH SOIC16945 - Immediate$6.91View Details
IC MCU 8BIT 16KB FLASH QFN12EFM8BB50F16I-A-QFN12IC MCU 8BIT 16KB FLASH QFN12200 - Immediate$6.09View Details
IC MCU 8BIT 16KB FLASH QFN16EFM8BB50F16I-A-QFN16IC MCU 8BIT 16KB FLASH QFN16182 - Immediate$6.34View Details
IC MCU 8BIT 16KB FLASH SOIC16EFM8BB50F16I-A-SOIC16IC MCU 8BIT 16KB FLASH SOIC16900 - Immediate$7.49View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
EFM8BB50 PRO KITBB50-PK5208AEFM8BB50 PRO KIT37 - Immediate$767.80View Details
EFM8BB50 EXPLORER KITBB50-EK2702AEFM8BB50 EXPLORER KIT7 - Immediate$259.31View Details
Published: 2023-11-20

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Use an Optimized 8-Bit Microcontroller to Simplify the Design of Resource-Constrained Devices The 8-bit EFM8BB50 MCUs feature flexible peripherals, enhanced performance, and an intuitive development environment.