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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersEFM8UB20F32G-B-QFN32
EFM8UB20F32G-B-QFN32 Image
Image may be representation.
See specifications for product details.

EFM8UB20F32G-B-QFN32 - Silicon Labs

Manufacturer Part Number
EFM8UB20F32G-B-QFN32
Manufacturer
Energy Micro (Silicon Labs)
Allelco Part Number
32D-EFM8UB20F32G-B-QFN32
ECAD Model
Parts Description
IC MCU 8BIT 32KB FLASH 32QFN
Detailed Description
Package
32-VFQFN Exposed Pad
Data sheet
Cylindrical Battery Holders.pdf
RoHs Status
RoHS Compliant
In stock: 23744

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Quantity

Specifications

EFM8UB20F32G-B-QFN32 Tech Specifications
Silicon Labs - EFM8UB20F32G-B-QFN32 technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - EFM8UB20F32G-B-QFN32

Product Attribute Attribute Value  
Manufacturer Energy Micro (Silicon Labs)  
Voltage - Supply (Vcc/Vdd) 2.65V ~ 3.6V  
Supplier Device Package 32-QFN (5x5)  
Speed 48MHz  
Series Universal Bee  
RAM Size 2.25K x 8  
Program Memory Type FLASH  
Program Memory Size 32KB (32K x 8)  
Peripherals Brown-out Detect/Reset, POR, PWM, WDT  
Package / Case 32-VFQFN Exposed Pad  
Package Tube  
Product Attribute Attribute Value  
Oscillator Type Internal  
Operating Temperature -40°C ~ 85°C (TA)  
Number of I/O 25  
Mounting Type Surface Mount  
EEPROM Size -  
Data Converters A/D 20x10b  
Core Size 8-Bit  
Core Processor CIP-51 8051  
Connectivity I²C, SMBus, SPI, UART/USART, USB  
Base Product Number EFM8UB20  

Parts Introduction

Manufacturer Part Number

EFM8UB20F32G-B-QFN32

Manufacturer

Silicon Labs

Introduction

High-performance, low-power 8051-based microcontroller for embedded systems

Product Features and Performance

8-Bit CIP-51 core

Maximum speed of 48MHz

Comprehensive connectivity options including I2C, SMBus, SPI, UART/USART, USB

Comprehensive range of peripherals like Brown-out Detect/Reset, POR, PWM, WDT

25 configurable I/Os

32KB FLASH memory for program storage

25KB RAM for data storage

Embedded 10-bit A/D converter with 20 channels

Internal oscillator for clock generation

Supports a wide voltage supply range from 2.65V to 3.6V

Product Advantages

Optimized for battery-powered and power-sensitive applications

USB 2.0 functionality for enhanced connectivity

In-system programmable flash supports firmware upgrades

Flexible and rich peripheral set for diverse application needs

Enhanced interface options for simplified integration with various peripherals and sensors

Key Technical Parameters

Core Processor: CIP-51 8051

Core Size: 8-Bit

Speed: 48MHz

Program Memory Size: 32KB

Program Memory Type: FLASH

RAM Size: 2.25K x 8

Voltage Supply: 2.65V ~ 3.6V

Data Converters: A/D 20x10b

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

Mounting Type: Surface Mount

Quality and Safety Features

Brown-out detection and hardware reset for system stability

Watchdog timer to ensure continuous operation

Extended temperature range support for reliability in varied environments

Compatibility

QFN32 package compatible with standard SMT processes

Universal serial bus interface for connection with existing USB host infrastructure

Application Areas

Consumer electronics

Industrial automation

Internet of Things devices

Battery-powered devices

Data acquisition systems

Product Lifecycle

Currently active product

Not reported to be near discontinuation at the knowledge cutoff point

Potential for future updates and replacement models as technology evolves

Several Key Reasons to Choose This Product

High-performance, low-power 8051 microcontroller for efficient operation

Comprehensive feature set for diverse application compatibility

Robust connectivity support with multiple communication protocols

Advanced peripherals enabling a wide range of functions without additional components

Strong community and manufacturer support for development and troubleshooting

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs EFM8UB20F32G-B-QFN32

Product Attribute EFM8UB20F32G-B-QFN32 EFM8SB20F32G-A-QFN32 EFM8UB20F64G-A-QFN32R EFM8UB20F32G-A-QFN32R
Part Number EFM8UB20F32G-B-QFN32 EFM8SB20F32G-A-QFN32 EFM8UB20F64G-A-QFN32R EFM8UB20F32G-A-QFN32R
Manufacturer Silicon Labs Silicon Labs Silicon Labs Silicon Labs
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Supplier Device Package 32-QFN (5x5) 32-QFN (5x5) 32-QFN (5x5) 32-QFN (5x5)
Core Processor CIP-51 8051 CIP-51 8051 CIP-51 8051 CIP-51 8051
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
Package / Case 32-VFQFN Exposed Pad 32-VFQFN Exposed Pad 32-VFQFN Exposed Pad 32-VFQFN Exposed Pad
RAM Size 2.25K x 8 4.25K x 8 4.25K x 8 2.25K x 8
Core Size 8-Bit 8-Bit 8-Bit 8-Bit
Data Converters A/D 20x10b A/D 23x10b A/D 20x10b A/D 20x10b
EEPROM Size - - - -
Number of I/O 25 24 25 25
Series Universal Bee Sleepy Bee Universal Bee Universal Bee
Voltage - Supply (Vcc/Vdd) 2.65V ~ 3.6V 1.8V ~ 3.6V 2.65V ~ 3.6V 2.65V ~ 3.6V
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Program Memory Type FLASH FLASH FLASH FLASH
Speed 48MHz 25MHz 48MHz 48MHz
Package Tube Tube Tape & Reel (TR) Tape & Reel (TR)
Base Product Number EFM8UB20 EFM8SB20 EFM8UB20 EFM8UB20
Oscillator Type Internal Internal Internal Internal
Connectivity I²C, SMBus, SPI, UART/USART, USB EBI/EMI, I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART, USB I²C, SMBus, SPI, UART/USART, USB
Program Memory Size 32KB (32K x 8) 32KB (32K x 8) 64KB (64K x 8) 32KB (32K x 8)

EFM8UB20F32G-B-QFN32 Datasheet PDF

Download EFM8UB20F32G-B-QFN32 pdf datasheets and Silicon Labs documentation for EFM8UB20F32G-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 Assembly/Origin
2.73KHz.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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EFM8UB20F32G-B-QFN32 Image

EFM8UB20F32G-B-QFN32

Silicon Labs
32D-EFM8UB20F32G-B-QFN32

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