Silicon Labs EFM8BB10F8G-A-QFN20

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Product attributes Property Value
Manufacturer Silicon Labs
Product Series Busy Bee
Packaging Tube |
Core Processor CIP-51 8051
Core Size 8-Bit
Speed 25MHz
Connectivity I2C, SMBus, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 16
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 2.2V ~ 3.6V
Data Converters A/D 15x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 20-QFN (3x3)
Package / Case 20-UFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The EFM8BB10F8G-A-QFN20 from Silicon Labs is an 8-bit 8051-based MCU with 8KB flash and 512B RAM. It runs at 25MHz with 2.2V-3.6V, featuring PWM, brown-out reset, and WDT. The 20-UFQFN package is perfect for ultra-compact embedded designs.

  • High-speed 8051 core – 25MHz performance.
  • Ultra-small QFN20 – minimal board footprint.
  • Low voltage operation – suitable for portable devices.
  • Integrated PWM – simplifies motor/light control.

Consumer Electronics

Small QFN20 package fits in earbuds and wearables for button control.

Industrial Sensors

25MHz 8051 core handles fast ADC sampling in pressure transmitters.

Smart Home Devices

PWM outputs drive LED indicators in smart switches.

Battery-Powered Tools

Low power consumption extends runtime in cordless screwdrivers.

Medical Disposables

Compact size enables single-use diagnostic devices.

Motor Drivers

PWM and WDT provide safe operation in small DC motor controllers.

Q: What core does it use?
A: CIP-51 8051 core.
Q: What is the flash size?
A: 8KB.
Q: What is the voltage range?
A: 2.2V to 3.6V.
Q: What package is available?
A: 20-UFQFN exposed pad.
Base Product Number : EFM8BB10F8G
512B RAM 8-bit MCU 8051 8KB Flash CIP-51 Consumer EFM8 Industrial PWM QFN-20
Q: What core does it use?
A: CIP-51 8051 core.
Q: What is the flash size?
A: 8KB.
Q: What is the voltage range?
A: 2.2V to 3.6V.
Q: What package is available?
A: 20-UFQFN exposed pad.