
EFM8BB31F32A-D-4QFN24R
- Manufacturer
- MFR.Part #
- EFM8BB31F32A-D-4QFN24R
- JLCPCB Part #
- C3233075
- Package
- QFN-24(4x4)
- Description
- -40℃~+125℃ 12bit 12bit 2.25KB 2.2V~3.6V 20 32KB 50MHz 51 Family 8 Bit Built-in FLASH QFN-24(4x4) Microcontrollers (MCU/MPU/SOC) ROHS
- EasyEDA Libraries
- ECCN
- 3A991A2
- Source
- JLCPCB
- Assembly Type
- SMT Assembly
- PCBA Type
- Standard Only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
| Attributes | Value | |
|---|---|---|
| Category | Embedded Processors & Controllers/Microcontrollers (MCU/MPU/SOC) | |
| Manufacturer | SKYWORKS/SILICON LABS | |
| Package | QFN-24(4x4) | |
| Operating Temperature | -40℃~+125℃ | |
| CPU Maximum Speed | 50MHz | |
| DAC (Bit) | 12bit | |
| Program Memory Type | FLASH | |
| Program Storage Size | 32KB | |
| Voltage - Supply | 2.2V~3.6V | |
| RAM Size | 2.25KB | |
| Core Size | 8 Bit | |
| CPU Core | 51 Series | |
| Number of I/O | 20 | |
| ADC (Bit) | 12bit | |
| Oscillator Type | Built-in |

* Images are for reference only
EFM8BB31F32A-D-4QFN24R
Extended- Manufacturer
- MFR.Part #
- EFM8BB31F32A-D-4QFN24R
- JLCPCB Part #
- C3233075
- Package
- QFN-24(4x4)
- Description
- -40℃~+125℃ 12bit 12bit 2.25KB 2.2V~3.6V 20 32KB 50MHz 51 Family 8 Bit Built-in FLASH QFN-24(4x4) Microcontrollers (MCU/MPU/SOC) ROHS
- EasyEDA Libraries
- ECCN
- 3A991A2
- Source
- JLCPCB
- Assembly Type
- SMT Assembly
- PCBA Type
- Standard Only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

* Images are for reference only
EFM8BB31F32A-D-4QFN24R
Extended- Manufacturer
- MFR.Part #
- EFM8BB31F32A-D-4QFN24R
- JLCPCB Part #
- C3233075
- Package
- QFN-24(4x4)
- Description
- -40℃~+125℃ 12bit 12bit 2.25KB 2.2V~3.6V 20 32KB 50MHz 51 Family 8 Bit Built-in FLASH QFN-24(4x4) Microcontrollers (MCU/MPU/SOC) ROHS
- EasyEDA Libraries
- ECCN
- 3A991A2
- Source
- JLCPCB
- Assembly Type
- SMT Assembly
- PCBA Type
- Standard Only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
EFM8BB31F32A-D-4QFN24R Specifications
EFM8BB31F32A-D-4QFN24R technical specifications, attributes, and parameters.
| Attributes | Value | |
|---|---|---|
| Category | Embedded Processors & Controllers/Microcontrollers (MCU/MPU/SOC) | |
| Manufacturer | SKYWORKS/SILICON LABS | |
| Package | QFN-24(4x4) | |
| Operating Temperature | -40℃~+125℃ | |
| CPU Maximum Speed | 50MHz | |
| DAC (Bit) | 12bit | |
| Program Memory Type | FLASH | |
| Program Storage Size | 32KB | |
| Voltage - Supply | 2.2V~3.6V | |
| RAM Size | 2.25KB | |
| Core Size | 8 Bit | |
| CPU Core | 51 Series | |
| Number of I/O | 20 | |
| ADC (Bit) | 12bit | |
| Oscillator Type | Built-in |
PCB Assembly Tips
From components to fully assembled PCBs. JLCPCB supports PCB assembly for the EFM8BB31F32A-D-4QFN24R. Sign up to receive and start your assembly today →
- 1
Step 1 - Pre-order the parts you need from JLCPCB.
- 2
Step 2 - Place a PCBA order to have those parts assembled onto your boards.
- 3
Step 3 - JLCPCB manufactures and assembles your boards in as fast as 3 days.

EFM8BB31F32A-D-4QFN24R Schematic Symbol & PCB Footprint
The EFM8BB31F32A-D-4QFN24R schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.