| PartNumber | EFM8BB10F2G-A-QFN20R | EFM8BB10F2G-A-QFN20 | EFM8BB10F2A-A-QFN20 |
| Description | 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU | 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU | 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | QFN-20 | QFN-20 | QFN-20 |
| Series | EFM8BB1 | EFM8BB1 | EFM8BB1 |
| Core | CIP-51 8051 | CIP-51 8051 | CIP-51 8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz |
| Program Memory Size | 2 kB | 2 kB | 2 kB |
| Data RAM Size | 256 B | 256 B | 256 B |
| ADC Resolution | 12 bit | 12 bit | 12 bit |
| Number of I/Os | 16 I/O | 16 I/O | 16 I/O |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 125 C |
| Packaging | Reel | Tube | - |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | Flash | Flash |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Data RAM Type | RAM | RAM | RAM |
| Interface Type | I2C, SMBus, SPI, UART | I2C, SMBus, SPI, UART | I2C/SMBus, SPI, UART |
| DAC Resolution | No DAC | No DAC | - |
| I/O Voltage | 5.8 V | 5.8 V | - |
| Moisture Sensitive | Yes | Yes | Yes |
| Number of ADC Channels | 15 Channel | 15 Channel | 15 Channel |
| Number of Timers/Counters | 4 x 16 bit | 4 x 16 bit | 4 x 16 bit |
| Processor Series | EFM8BB1 | EFM8BB1 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 1500 | 120 | 120 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 2.2 V | 2.2 V | 2.2 V |
| Tradename | Busy Bee | Busy Bee | Busy Bee |
| Watchdog Timers | Watchdog Timer | Watchdog Timer | Watchdog Timer |
| Unit Weight | 0.001764 oz | 0.001764 oz | - |
| Operating Supply Voltage | - | - | 2.2 V to 3.6 V |