
For Reference Only
Part Number | EFM8BB31F32A-B-4QFN24 |
OEMstron Part # | EFM8BB31F32A-B-4QFN24 |
Manufacturer | Silicon Labs |
Category | Semiconductors › Embedded Processors & Controllers › Microcontrollers |
Description | IC MCU 8BIT 32KB FLASH 24QFN |
Lifecycle | Not For New Designs |
RoHS | No RoHS Information |
EDA/CAD Models | EFM8BB31F32A-B-4QFN24 PCB Footprint and Symbol |
Warehouses | USA, Europe, China, Hong Kong SAR |
Estimated Delivery | Mar 20 - Mar 25 (Choose Expedited Shipping) |
Warranty | Up to 1 year [Limited-Warranty]* |
Payment | ![]() |
Shipping | ![]() |
EFM8BB31F32A-B-4QFN24 Specifications
Part Number | EFM8BB31F32A-B-4QFN24 | |
Brand | Silicon Labs | |
Lifecycle | Not For New Designs | |
RoHS | No RoHS Information | |
Product Line | Semiconductors | |
Category | Embedded Processors & Controllers | |
Subcategory | Microcontrollers | |
Manufacturer | Silicon Labs | |
Series | Automotive, AEC-Q100, Busy Bee | |
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 | 20 | |
Program Memory Size | 32KB (32K x 8) | |
Program Memory Type | FLASH | |
EEPROM Size | - | |
RAM Size | 2.25K x 8 | |
Voltage - Supply (Vcc/Vdd) | 2.2V ~ 3.6V | |
Data Converters | A/D 12x10/12b SAR; D/A 2x12b | |
Oscillator Type | Internal | |
Operating Temperature | -40°C ~ 125°C (TA) | |
Mounting Type | Surface Mount | |
Package / Case | 24-WFQFN Exposed Pad | |
Supplier Device Package | 24-QFN (4x4) |
EFM8BB31F32A-B-4QFN24 Documents















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Global Supply Chains - Reliable and Authorized Distributor Resources
Part Number | Description | Stock |
EFM8BB31F32A-B-4QFN24 D# EFM8BB31F32A-B-4QFN24-ND Silicon Laboratories Inc |
IC MCU 8BIT 32KB FLASH 24QFN |
Limited Supply - Call |
EFM8BB31F32A-B-4QFN24R D# EFM8BB31F32A-B-4QFN24R-ND Silicon Laboratories Inc |
IC MCU 8BIT 32KB FLASH 24QFN |
Limited Supply - Call |
Part Number | Description | Stock |
EFM8BB31F32A-B-4QFN24 Silicon Laboratories Inc |
EFM8 8051 8-bit MCU, AEC-Q100, Automotive 32kB, 2kB(RAM), 20 GPIO, 2 DACs, 12 bit ADC, 12 ADC Channels |
Short Lead Time |
EFM8BB31F32A-B-4QFN24R Silicon Laboratories Inc |
EFM8 8051 8-bit MCU, AEC-Q100, Automotive 32kB, 2kB(RAM), 20 GPIO, 2 DACs, 12 bit ADC, 12 ADC Channels |
Short Lead Time |
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In Stock | 420 - More on Order |
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Quote Limit | No Limit |
Lead-Time | To be Confirmed |
Minimum | 1 |
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Pricing (USD)
Qty. | Unit Price | Ext. Price |
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1 | $ 1.4245 | $ 1.4245 |
100 | $ 1.4245 | $ 142.4500 |
500 | $ 1.4245 | $ 712.2500 |
1000 | $ 1.4245 | $ 1,424.5000 |
2500 | $ 1.4245 | $ 3,561.2500 |
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