Introducing the EFM8BB5
Silicon Labs has announced the newest addition to the 8-bit portfolio, the EFM8BB5, which empowers developers with a versatile, highly integrated platform, ideal for transitioning from older 8-bit offerings. With compact package options as small as 2 mm x 2 mm and competitive pricing to cater to even the most budget-conscious designers, the BB5 family excels both as a means to augment existing products with simple functionality and as the primary MCU.
8-bit MCUs
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| Frequency | Flash (kB) | RAM (kB) | GPIO | ADC 1 | ADC 2 | DAC | ACMP | USB | SPI | UART | I2C | Packages | Timers | Vdd (Min) | Vdd (Max) | PWM/PCA Ch. | |
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EFM8 BB5
EFM8 BB5 8-bit Microcontrollers (MCUs)
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50 | 4, 8, 16, 32 | 0.5, 1.28, 2.30 | 9, 12, 16, 25, 29 | 12-bit, 12-ch., 12-bit, 16-ch, 12-bit, 16-ch., 12-bit, 5-ch., 12-bit, 8-ch. | — | -, 10-bit, 1-ch, 10-bit, 1-ch. | 0, 2 | 1 | 1, 2 | 1,2 | QFN12, QFN16, QFN20, QFN32, SOIC16, TSSOP20, TSSOP28 | 4 | 1.8 | 5.5 | 3 | |
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EFM8 Busy Bee
EFM8 Busy Bee 8-bit Microcontrollers (MCUs)
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25, 50 | 2, 4, 8, 16, 32, 64 | 0.25, 0.5, 2.25, 4.25 | 13, 16, 20, 22, 28, 29 | 12-bit, 12-ch., 12-bit, 15-ch., 12-bit, 20-ch. | — | 12-bit, 2-ch., 12-bit, 4-ch., — | 2 | 1 | 1, 2 | 1 1 | QFN20, QFN24, QFN28, QFN32, QFP32, SOIC16 | 4, 5, 6 | 2.2 | 3.6 | 3, 6 | |
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EFM8 Laser Bee
EFM8 Analog Intensive Laser Bee 8-bit Microcontrollers (MCUs)
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72 | 16, 32, 64 | 1.25, 2.25, 4.25 | 20, 28, 29 | 14-bit, 12-ch., 14-bit, 20-ch. | — | 12-bit, 2-ch., 12-bit, 4-ch., — | 2 | 1 | 2 | 1 1 | QFN24, QFN32, QFP32 | 6 | 2.2 | 3.6 | 6 | |
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EFM8 Sleepy Bee
EFM8 Ultra Low Power Sleepy Bee 8-bit Microcontrollers (MCUs)
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25 | 2, 4, 8, 16, 32, 64 | 0.25, 0.5, 4 | 13, 16, 17, 24 | 10-bit, 15-ch., 10-bit, 23-ch., 12-bit, 10-ch., 12-bit, 9-ch. | — | — | 1, 2 | 1, 2 | 1 | 1 | CSP16, QFN20, QFN24, QFN32, QFP32 | 4 | 1.8 | 3.6 | 3, 6 | |
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EFM8 Universal Bee
EFM8 USB Capable Universal Bee 8-bit Microcontrollers (MCUs)
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48 | 8, 16, 32, 64 | 2, 4 | 13, 22, 25, 40 | 10-bit, 20-ch., 10-bit, 32-ch., 12-bit, 11-ch., 12-bit, 20-ch. | — | — | 2 | 1 | 2 | 2 1 | QFN20, QFN28, QFN32, QFP32, QFP48 | 5, 6 | 2.2, 2.7 | 3.8, 5.25 | 3, 5 | |
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C8051F02x
C8051F02x Analog-Intensive MCUs
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25 | 64 | 4.25 | 32, 64 | 10-bit, 8-ch., 100 ksps, 12-bit, 8-ch., 100 ksps | 8-bit, 8-ch., 500 ksps | 12-bit, 2-ch. | 2 | 1 | 2 | 1 | QFP100, QFP64 | 5 | 2.7 | 3.6 | 5 | |
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C8051F04x
C8051F04x Analog-Intensive MCUs
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25 | 32, 64 | 4.25 | 32, 64 | 10-bit, 13-ch., 100 ksps, 12-bit, 13-ch., 100 ksps | 8-bit, 8-ch., 500 ksps, — | 12-bit, 2-ch., — | 3 | 1 | 2 | 1 | QFP100, QFP64 | 5 | 2.7 | 3.6 | 6 | |
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C8051F06x
C8051F06x Analog-Intensive MCUs
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25 | 32, 64 | 4.25 | 24, 59 | 16-bit, 1-ch., 1 Msps | 16-bit, 1-ch., 1 Msps | 12-bit, 2-ch., — | 3 | 1 | 2 | 1 | QFP100, QFP64 | 5 | 2.7 | 3.6 | 6 | |
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C8051F12x/13x
C8051F12x/13x Analog-Intensive MCUs
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50, 100 | 64, 128 | 8 | 32, 64 | 10-bit, 8-ch., 100 ksps, 12-bit, 8-ch., 100 ksps | 8-bit, 8-ch., 500 ksps, — | 12-bit, 2-ch., — | 2 | 1 | 2 | 1 | QFP100, QFP64 | 5 | 2.7 | 3.6 | 6 | |
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C8051F30x
C8051F30x Small Form Factor Microcontrollers
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25 | 2, 4, 8 | 0.25 | 8 | 8-bit, 8-ch., 500 ksps, — | — | — | 1 | 0 | 1 | 1 | QFN11 | 3 | 2.7 | 3.6 | 3 | |
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C8051F31x
C8051F31x Small Form Factor Microcontrollers
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25 | 8, 16 | 1.25 | 21, 25, 29 | 10-bit, 13-ch.,200 ksps, 10-bit, 17-ch., 200 ksps, 10-bit, 21-ch., 200 ksps, — | — | — | 2 | 1 | 1 | 1 | QFN24, QFN28, QFP32 | 4 | 2.7 | 3.6 | 5 | |
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C8051F32x/34x
C8051F32x/34x USB Microcontrollers
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25, 50 | 16, 32, 64 | 1.5, 2.25, 4.25 | 15, 21, 25, 40 | 10-bit, 13-ch., 200 ksps, 10-bit, 17-ch., 200 ksps, 10-bit, 20-ch., 200 ksps, 10-bit, 21-ch., 200 ksps, — | — | — | 0, 2 | 0, 1 | 1, 2 | 1 | QFN28, QFN32, QFP32, QFP48 | 2, 4 | 2.7, 4 | 5.25 | 0, 5 | |
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C8051F33x
C8051F33x Small Form Factor Microcontrollers
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25 | 2, 4, 8, 16 | 0.75 | 17, 21 | 10-bit, 16-ch., 200 ksps, — | — | 10-bit, 1-ch., — | 1 | 1 | 1 | 1 | QFN20, QFN24 | 4 | 2.7 | 3.6 | 3 | |
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C8051F35x
C8051F35x Analog-Intensive MCUs
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50 | 8 | 0.75 | 17 | 16-bit, 8-ch., 1 ksps, 24-bit, 8-ch., 1 ksps | — | 8-bit, 2-ch. | 1 | 1 | 1 | 1 | QFN28, QFP32 | 4 | 2.7 | 3.6 | 3 | |
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C8051F36x
C8051F36x Small Form Factor Microcontrollers
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50, 100 | 32 | 1.25 | 25, 29, 39 | 10-bit, 17-ch., 200 ksps, 10-bit, 21-ch., 200 ksps | — | 10-bit, 1-ch. | 2 | 1 | 1 | 1 | QFN28, QFP32, QFP48 | 4 | 2.7 | 3.6 | 6 | |
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C8051F38x
C8051F38x Microcontrollers
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50 | 16, 32, 64 | 2.25, 4.25 | 25, 40 | 10-bit, 21-ch., 500 ksps, 10-bit, 32-ch., 500 ksps, — | — | — | 2 | 1 | 2 | 2 | QFN32, QFP32, QFP48 | 6 | 2.7 | 5.25 | 5 | |
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C8051F39x
C8051F39x Small Form Factor Microcontrollers
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50 | 4, 8, 16 | 1 | 17, 21 | 10-bit, 16-ch., 500 ksps, — | — | 10-bit, 2-ch., — | 1 | 1 | 1 | 2 | QFN20, QFN24 | 6 | 1.8 | 3.6 | 3 | |
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C8051F41x
C8051F41x Small Form Factor Microcontrollers
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50 | 16, 32 | 2.25 | 20, 24 | — | — | 12-bit, 2-ch. | 2 | 1 | 1 | 1 | QFN28, QFP32 | 4 | 2 | 5.25 | 6 | |
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C8051F50x
C8051F50x Automotive & Industrial MCUs
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50 | 32, 64 | 4.25 | 25, 33, 40 | 12-bit, 25-ch., 200 ksps, 12-bit, 32-ch., 200 ksps | — | — | 2 | 1 | 1 | 1 | QFN32, QFN40, QFN48, QFP32, QFP48 | 4 | 1.8 | 5.25 | 6 | |
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C8051F51x
C8051F51x Automotive & Industrial MCUs
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50 | 32 | 4.25 | 33 | 12-bit, 32-ch., 200 ksps | — | — | 2 | 1 | 1 | 1 | QFN40 | 4 | 1.8 | 5.25 | 6 | |
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C8051F52x
Automotive & Industrial MCUs
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25 | 2, 4, 8 | 0.25 | 6 | 12-bit, 6-ch, 200 ksps, 12-bit, 6-ch., 200 ksps | — | — | 1 | 1 | 1 | DFN10 | 3 | 2 | 5.25 | 3 | ||
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C8051F53x
C8051F53x Automotive & Industrial MCUs
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25 | 2, 4, 8 | 0.25 | 16 | 12-bit, 16-ch., 200 ksps | — | — | 1 | 1 | 1 | QFN20, TSSOP20 | 3 | 2 | 5.25 | 3 | ||
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C8051F54x
C8051F54x Automotive & Industrial MCUs
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50 | 8, 16 | 1.25 | 18, 25 | 12-bit, 18-ch., 200 ksps, 12-bit, 25-ch., 200 ksps | — | — | 2 | 1 | 1 | QFN24, QFN32 | 4 | 1.8 | 5.25 | 6 | ||
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C8051F55x
C8051F55x Automotive & Industrial MCUs
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50 | 16, 32 | 2.25 | 18 | 12-bit, 18-ch., 200 ksps | — | — | 2 | 1 | 1 | 1 | QFN24 | 4 | 1.8 | 5.25 | 6 | |
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C8051F56x
C8051F56x Automotive & Industrial MCUs
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50 | 16, 32 | 2.25 | 25, 33 | 12-bit, 25-ch., 200 ksps, 12-bit, 32-ch., 200 ksps | — | — | 2 | 1 | 1 | 1 | QFN32, QFN40, QFP32 | 4 | 1.8 | 5.25 | 6 | |
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C8051F57x
Automotive & Industrial MCUs
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50 | 32 | 2.25 | 33 | 12-bit, 32-ch., 200 ksps | — | — | 2 | 1 | 1 | 1 | QFN40 | 4 | 1.8 | 5.25 | 6 | |
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C8051F58x
C8051F58x Automotive & Industrial MCUs
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50 | 96, 128 | 8 | 25, 40 | 12-bit, 25-ch., 200 ksps, 12-bit, 32-ch., 200 ksps | — | — | 3 | 1 | 2 | 1 | QFN32, QFN48, QFP32, QFP48 | 6 | 1.8 | 5.25 | 12 | |
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C8051F92x-93x
C8051F92x-93x Ultra Low-Power MCUs
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25 | 32, 64 | 4.25 | 16, 24 | 10-bit, 15-ch., 300 ksps, 10-bit, 23-ch., 300 ksps | — | — | 2 | 2 | 1 | 1 | QFN24, QFN32, QFP32 | 4 | 0.9 | 3.6 | 6 | |
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C8051F96x
C8051F96x Ultra Low-Power Microcontrollers
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25 | 16, 32, 64, 128 | 4.25, 8 | 34, 57 | 12-bit, 16-ch., 75 ksps | — | — | 2 | 1, 2 | 1 | 1 1 | QFN40, QFN76, QFP80 | 4 | 1.8 | 3.8 | 6 |
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Featured 8-bit MCU Kits
EFM8 BB50 8-bit MCU Explorer Kit
The Silicon Labs EFM8 BB50 8-bit MCU Explorer Kit, BB50-EK2702A, is an ideal, obstacle free evaluation starting point for the EFM8BB50 8-bit Microcontroller family. It offers Qwiic and MikroE connectors for rapid prototyping as well as an on board debugger. All pins are brought out with minimal conflicts to enable quick development.
EFM8 BB50 8-bit MCU Explorer Kit
The Silicon Labs EFM8 BB50 8-bit MCU Explorer Kit, BB50-EK2702A, is an ideal, obstacle free evaluation starting point for the EFM8BB50 8-bit Microcontroller family. It offers Qwiic and MikroE connectors for rapid prototyping as well as an on board debugger. All pins are brought out with minimal conflicts to enable quick development.
EFM8 BB50 8-bit MCU Pro Kit
The Silicon Labs BB50-PK5208A, EFM8 BB0 Pro Kit, is an ideal starting point for application development on the EFM8 BB50 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.
EFM8 BB50 8-bit MCU Pro Kit
The Silicon Labs BB50-PK5208A, EFM8 BB0 Pro Kit, is an ideal starting point for application development on the EFM8 BB50 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.
EFM8 BB52 8-bit MCU Pro Kit
The BB52-PK5206B, EFM8 BB5 Pro Kit, is an ideal starting point for application development on the EFM8BB52 8-bit Microcontroller family. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM8BB52 Microcontroller. Additionally, the board is a fully featured debugger and energy monitoring tool that can be used with external applications.
EFM8 BB52 8-bit MCU Pro Kit
The BB52-PK5206B, EFM8 BB5 Pro Kit, is an ideal starting point for application development on the EFM8BB52 8-bit Microcontroller family. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM8BB52 Microcontroller. Additionally, the board is a fully featured debugger and energy monitoring tool that can be used with external applications.
EFM8 BB52 8-bit MCU Explorer Kit
The EFM8 BB52 8-bit MCU Explorer Kit, BB52-EK2701A, is an ideal, obstacle free evaluation starting point for the EFM8BB52 8-bit Microcontroller family. It offers Qwicc and Click connectors for rapid prototyping as well as an on board debugger. All pins are brought out with minimal conflicts to enable quick development.
EFM8 BB52 8-bit MCU Explorer Kit
The EFM8 BB52 8-bit MCU Explorer Kit, BB52-EK2701A, is an ideal, obstacle free evaluation starting point for the EFM8BB52 8-bit Microcontroller family. It offers Qwicc and Click connectors for rapid prototyping as well as an on board debugger. All pins are brought out with minimal conflicts to enable quick development.
EFM8 BB51 8-bit MCU Pro Kit
BB52-PK5207B, EFM8 BB5 Pro Kit, is an ideal starting point for application development on the EFM8 BB51 8-bit Microcontroller family. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM8 BB51 Microcontroller.
EFM8 BB51 8-bit MCU Pro Kit
BB52-PK5207B, EFM8 BB5 Pro Kit, is an ideal starting point for application development on the EFM8 BB51 8-bit Microcontroller family. The board features sensors and peripherals, demonstrating some of the many capabilities of the EFM8 BB51 Microcontroller.
EFM8 BB51 8-bit MCU Explorer Kit
The Silicon Labs EFM8 BB51 8-bit MCU Explorer Kit, BB51-EK2700A, is an ideal, obstacle free evaluation starting point for the EFM8BB51 8-bit Microcontroller family. It offers Qwicc and Click connectors for rapid prototyping as well as an on board debugger. All pins are brought out with minimal conflicts to enable quick development.
EFM8 BB51 8-bit MCU Explorer Kit
The Silicon Labs EFM8 BB51 8-bit MCU Explorer Kit, BB51-EK2700A, is an ideal, obstacle free evaluation starting point for the EFM8BB51 8-bit Microcontroller family. It offers Qwicc and Click connectors for rapid prototyping as well as an on board debugger. All pins are brought out with minimal conflicts to enable quick development.
8-bit USB Debug Adapter
The USB Debug Adapter provides the interface between the PC’s USB port and the C8051Fxxx and EFM8’s in-system debug/programming circuitry.
8-bit USB Debug Adapter
The USB Debug Adapter provides the interface between the PC’s USB port and the C8051Fxxx and EFM8’s in-system debug/programming circuitry.
Simplicity Link Debugger
The Simplicity Link Debugger is a tool designed to debug and program our 32-bit and 8-bit devices on custom boards. The J-Link debugger enables programming and debugging on the target device over USB, through our Mini Simplicity interface.
Simplicity Link Debugger
The Simplicity Link Debugger is a tool designed to debug and program our 32-bit and 8-bit devices on custom boards. The J-Link debugger enables programming and debugging on the target device over USB, through our Mini Simplicity interface.
8-bit Software Development
Simplicity Studio is the core development environment designed to support the Silicon Labs IoT portfolio of 8-bit SoCs. It provides access to target device-specific web and SDK resources in the Launcher; software and hardware configuration tools; an integrated development environment (IDE) featuring industry-standard code editors, compilers and debuggers; and advanced, value-add tools for network analysis and code-correlated energy profiling.
Silicon Labs offers an advanced 8-bit microcontroller studio, available at no charge to developers. These tools unlock the power and flexibility of the 8-bit 8051 microcontroller family. All C8051Fxxx families are supported by the 8-bit Studio. If your 8051 device does not appear in the 8-bit studio list, you can also use Simplicity Studio Software Suite.
Simplicity Studio
Making development easier and more efficient by providing everything needed - from initial concept to final product.
32-bit MCU SDK
This software package provides all of the drivers and services needed for a successful 32-bit MCU project.
Precision32 32-bit MCU Development Suite
This tool unlocks the power and flexibility of the Precision32™ 32-bit microcontroller family.
Find the Right 8-bit Microcontroller for your Application
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Find Data Sheets, App Notes and More.
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Discover training curriculum including written and video modules.
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