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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersEFM8BB31F64G-B-QFN32
EFM8BB31F64G-B-QFN32 Image
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EFM8BB31F64G-B-QFN32 - Silicon Labs

Manufacturer Part Number
EFM8BB31F64G-B-QFN32
Manufacturer
Energy Micro (Silicon Labs)
Allelco Part Number
32D-EFM8BB31F64G-B-QFN32
ECAD Model
Parts Description
IC MCU 8BIT 64KB FLASH 32QFN
Package
32-UFQFN Exposed Pad
Data sheet
Cylindrical Battery Holders.pdf
Our certification
In stock: 12840

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Specifications

EFM8BB31F64G-B-QFN32 Tech Specifications
Silicon Labs - EFM8BB31F64G-B-QFN32 technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - EFM8BB31F64G-B-QFN32

Product Attribute Attribute Value  
Manufacturer Energy Micro (Silicon Labs)  
Voltage - Supply (Vcc/Vdd) 2.2V ~ 3.6V  
Supplier Device Package 32-QFN (4x4)  
Speed 50MHz  
Series Busy Bee  
RAM Size 4.25K x 8  
Program Memory Type FLASH  
Program Memory Size 64KB (64K x 8)  
Peripherals Brown-out Detect/Reset, POR, PWM, WDT  
Package / Case 32-UFQFN Exposed Pad  
Package Tray  
Product Attribute Attribute Value  
Oscillator Type Internal  
Operating Temperature -40°C ~ 85°C (TA)  
Number of I/O 29  
Mounting Type Surface Mount  
EEPROM Size -  
Data Converters A/D 20x10/12b SAR; D/A 4x12b  
Core Size 8-Bit  
Core Processor CIP-51 8051  
Connectivity I²C, SMBus, SPI, UART/USART  
Base Product Number EFM8BB31  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status
ECCN 3A991A2
HTSUS 8542.31.0001

Parts Introduction

Manufacturer Part Number

EFM8BB31F64G-B-QFN32

Manufacturer

Silicon Labs

Introduction

EFM8BB31F64G-B-QFN32 is an high-performance 8-bit microcontroller from Silicon Labs' Busy Bee series operating at 50 MHz. It is designed to handle complex embedded systems with increased processing power and reduced power consumption.

Product Features and Performance

Core Processor: CIP-51 8051

Core Size: 8-Bit

Speed: 50 MHz

Connectivity: I2C, SMBus, SPI, UART/USART

Peripherals: Brown-out Detect/Reset, POR, PWM, WDT

Program Memory Size: 64KB (64K x 8)

Program Memory Type: FLASH

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 ~ 85°C

Mounting Type: Surface Mount

Supplier Device Package: 32-QFN (4x4)

Package/Case: 32-UFQFN Exposed Pad

Product Advantages

High-speed performance at 50 MHz

Robust connectivity options including I2C, SMBus, SPI, UART/USART

Comprehensive peripheral integration enhances functionality

Low voltage operation from 2.2V to 3.6V

Internal oscillator simplifies system design

Suited for harsh environments with operating temperatures from -40°C to 85°C

Key Technical Parameters

Core Size: 8-Bit

Speed: 50MHz

Program Memory Size: 64KB

Data Converters: A/D 20x10/12b, D/A 4x12b

Number of I/O: 29

Voltage Supply Range: 2.2V to 3.6V

Operating Temperature Range: -40°C to 85°C

Quality and Safety Features

Brown-out Detect/Reset

Power-On Reset (POR)

Watchdog Timer (WDT)

Extended industrial standard operating temperature range (-40°C ~ 85°C)

Compatibility

Supports interfaces I2C, SMBus, SPI, UART/USART, facilitating easy integration with various external components.

Application Areas

Automotive systems

Industrial controls

Consumer electronics

Home automation

IoT devices

Product Lifecycle

Discontinued at Digi-Key

Check manufacturer’s website or authorized distributors for availability

Potential for service or upgrades based on demand

Key Reasons to Choose This Product

High-speed 50 MHz operation for rapid data processing

Comprehensive connectivity options make system expansion straightforward

Includes highly practical inbuilt peripherals minimizing additional components

Low power requirement enhances product reliability and life

Robust operational features ensuring functionality in broad conditions

Ideal for designing durable and efficient applications in various industries

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs EFM8BB31F64G-B-QFN32

Product Attribute EFM8BB31F64G-B-QFN32 EFM8BB31F16I-C-QFN24R EFM8BB31F64I-D-4QFN24R EFM8LB11F16ES0-B-QFN24R
Part Number EFM8BB31F64G-B-QFN32 EFM8BB31F16I-C-QFN24R EFM8BB31F64I-D-4QFN24R EFM8LB11F16ES0-B-QFN24R
Manufacturer Silicon Labs Silicon Labs Silicon Labs Silicon Labs
Number of I/O 29 20 20 20
Supplier Device Package 32-QFN (4x4) 24-QFN (3x3) 24-QFN (4x4) 24-QFN (3x3)
Peripherals Brown-out Detect/Reset, POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, WDT Brown-out Detect/Reset, POR, PWM, WDT
Oscillator Type Internal Internal Internal Internal
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Core Processor CIP-51 8051 CIP-51 8051 CIP-51 8051 CIP-51 8051
EEPROM Size - - - -
Base Product Number EFM8BB31 EFM8BB31 EFM8BB31 EFM8LB11
Package Tray Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Voltage - Supply (Vcc/Vdd) 2.2V ~ 3.6V 2.2V ~ 3.6V 2.2V ~ 3.6V 2.2V ~ 3.6V
Connectivity I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 125°C (TA) -40°C ~ 125°C (TA) -40°C ~ 105°C (TA)
Series Busy Bee Busy Bee Busy Bee Laser Bee
Program Memory Type FLASH FLASH FLASH FLASH
Core Size 8-Bit 8-Bit 8-Bit 8-Bit
Package / Case 32-UFQFN Exposed Pad 24-VFQFN Exposed Pad 24-WFQFN Exposed Pad 24-VFQFN Exposed Pad
Program Memory Size 64KB (64K x 8) 16KB (16K x 8) 64KB (64K x 8) 16KB (16K x 8)
RAM Size 4.25K x 8 2.25K x 8 4.25K x 8 1.25K x 8
Data Converters A/D 20x10/12b SAR; D/A 4x12b A/D 12x10/12b SAR; D/A 2x12b A/D 12x12b; D/A 2x12b A/D 12x14b; D/A 2x12b
Speed 50MHz 50MHz 50MHz 72MHz

EFM8BB31F64G-B-QFN32 Datasheet PDF

Download EFM8BB31F64G-B-QFN32 pdf datasheets and Silicon Labs documentation for EFM8BB31F64G-B-QFN32 - Silicon Labs.

Datasheets
Cylindrical Battery Holders.pdf
PCN Packaging
Labeling Change 14/Dec/2021.pdf IC/SIP MOQ Chg 11/Jan/2022.pdf
PCN Design/Specification
Mult Dev Revision 23/Jan/2019.pdf EFM8 24/May/2017.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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EFM8BB31F64G-B-QFN32

Silicon Labs
32D-EFM8BB31F64G-B-QFN32

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