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| PartNumber | EFM8BB10F4G-A-QFN20 | EFM8BB10F4A-A-QFN20 | EFM8BB10F4A-A-QFN20R |
| Description | 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU | 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU | 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 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 | - |
| Mounting Style | SMD/SMT | - | SMD/SMT |
| Package / Case | QFN-20 | - | QFN-20 |
| Series | EFM8BB1 | EFM8BB1 | EFM8BB1 |
| Core | CIP-51 8051 | - | CIP-51 8051 |
| Data Bus Width | 8 bit | - | 8 bit |
| Maximum Clock Frequency | 25 MHz | - | 25 MHz |
| Program Memory Size | 4 kB | - | 4 kB |
| Data RAM Size | 512 B | - | 512 B |
| ADC Resolution | 12 bit | - | 12 bit |
| Number of I/Os | 16 I/O | - | 16 I/O |
| Minimum Operating Temperature | - 40 C | - | - 40 C |
| Maximum Operating Temperature | + 85 C | - | + 125 C |
| Packaging | Tube | - | Box |
| Product | MCU | - | MCU |
| Program Memory Type | Flash | - | Flash |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Data RAM Type | RAM | - | RAM |
| Interface Type | 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 | - |
| Number of ADC Channels | 15 Channel | - | 15 Channel |
| Number of Timers/Counters | 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 | 120 | 120 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | - | 3.6 V |
| Supply Voltage Min | 2.2 V | - | 2.2 V |
| Tradename | Busy Bee | Busy Bee | Busy Bee |
| Watchdog Timers | Watchdog Timer | - | Watchdog Timer |
| Unit Weight | 0.001764 oz | - | - |