For Reference Only
| Part Number | EFM8BB31F64I-B-QFN32R |
| Manufacturer | Silicon Labs |
| Category | Integrated Circuits (ICs) › Microcontrollers |
| Description | IC MCU 8BIT 64KB FLASH 32QFN |
| Lifecycle | Active |
| RoHS | No RoHS Information |
| EDA/CAD Models | EFM8BB31F64I-B-QFN32R PCB Footprint and Symbol |
| Warehouses | USA, Europe, China, Hong Kong SAR |
| Estimated Delivery | Dec 09 - Dec 13 2025(Choose Expedited Shipping) |
| Warranty | Up to 1 year [Limited-Warranty]* |
| Payment | 
|
| Shipping |  |
| Part Number: | EFM8BB31F64I-B-QFN32R |
| Brand: | Silicon Labs |
| Lifecycle: | Active |
| RoHS: | Lead free / RoHS Compliant |
| Category: | Integrated Circuits (ICs) |
| Subcategory: | Microcontrollers |
| Manufacturer: | Silicon Labs |
| Product Status: | Not For New Designs |
| Core Processor: | CIP-51 8051 |
| Core Size: | 8-Bit |
| Speed: | 50MHz |
| Connectivity: | I²C, SMBus, SPI, UART/USART |
| Peripherals: | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O: | 29 |
| Program Memory Size: | 64KB (64K x 8) |
| Program Memory Type: | FLASH |
| EEPROM Size: | - |
| RAM Size: | 4.25K x 8 |
| Voltage - Supply (Vcc/Vdd): | 2.2V ~ 3.6V |
| Data Converters: | A/D 20x10/12b SAR; D/A 4x12b |
| Oscillator Type: | Internal |
| Operating Temperature: | -40°C ~ 125°C (TA) |
| Mounting Type: | Surface Mount |
| Package / Case: | 32-UFQFN Exposed Pad |
| Supplier Device Package: | 32-QFN (4x4) |
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| In Stock | 59765 pieces - More on Order |
|---|---|
| Quote Limit | No Limit |
| Lead-Time | To be Confirmed |
| Minimum | 1 |
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 2500 | $1.11983 | $2799.575 |
Due to the impact of the COVID-19,the above prices have not been updated, please resend the inquiry to us, thank you for your understanding
Please feel free to contact us for details.
