Please refer to the English Version as our Official Version.

Europe: France~~(Français)~~ Germany~~(Deutsch)~~ Italy~~(Italia)~~ Russian~~(русский)~~ Poland~~(polski)~~ Czech~~(Čeština)~~ Luxembourg~~(Lëtzebuergesch)~~ Netherlands~~(Nederland)~~ Iceland~~(íslenska)~~ Hungarian~~(Magyarország)~~ Spain~~(español)~~ Portugal~~(Português)~~ Turkey~~(Türk dili)~~ Bulgaria~~(Български език)~~ Ukraine~~(Україна)~~ Greece~~(Ελλάδα)~~ Israel~~(עִבְרִית)~~ Sweden~~(Svenska)~~ Finland~~(Svenska)~~ Finland~~(Suomi)~~ Romania~~(românesc)~~ Moldova~~(românesc)~~ Slovakia~~(Slovenská)~~ Denmark~~(Dansk)~~ Slovenia~~(Slovenija)~~ Slovenia~~(Hrvatska)~~ Croatia~~(Hrvatska)~~ Serbia~~(Hrvatska)~~ Montenegro~~(Hrvatska)~~ Bosnia and Herzegovina~~(Hrvatska)~~ Lithuania~~(lietuvių)~~ Spain~~(Português)~~ Switzerland~~(Deutsch)~~ United Kingdom~~(English)~~

Asia/Pacific: Japan~~(日本語)~~ Korea~~(한국의)~~ Thailand~~(ภาษาไทย)~~ Malaysia~~(Melayu)~~ Singapore~~(Melayu)~~ Vietnam~~(Tiếng Việt)~~ Philippines~~(Pilipino)~~

Africa, India and Middle East: United Arab Emirates~~(العربية)~~ Iran~~(فارسی)~~ Tajikistan~~(فارسی)~~ India~~(हिंदी)~~ Madagascar~~(malaɡasʲ)~~

South America / Oceania: New Zealand~~(Maori)~~ Brazil~~(Português)~~ Angola~~(Português)~~ Mozambique~~(Português)~~

North America: United States~~(English)~~ Canada~~(English)~~ Haiti~~(Ayiti)~~ Mexico~~(español)~~

Home Products Integrated Circuits (ICs)Embedded - Microcontrollers~~EFM8UB20F64G-B-QFN32~~

Image may be representation.
See specifications for product details.

~~Favorite~~

EXPRESS OPTION

Payment method

EFM8UB20F64G-B-QFN32 - Silicon Labs

Name: Silicon Labs EFM8UB20F64G-B-QFN32
Brand: Silicon Labs
SKU: EFM8UB20F64G-B-QFN32
Availability: InStock
Rating: 5 (7 reviews)

Manufacturer Part Number: EFM8UB20F64G-B-QFN32

Manufacturer: Energy Micro (Silicon Labs)

Allelco Part Number: 32D-EFM8UB20F64G-B-QFN32

ECAD Model

Parts Description: IC MCU 8BIT 64KB FLASH 32QFN

Package: 32-VFQFN Exposed Pad

Data sheet: EFM8UB2 Datasheet.pdf

RoHs Status: RoHS Compliant

~~Compare~~

Our certification

In stock: 18977

EXPRESS OPTION

Payment method

Our certification

Specifications

EFM8UB20F64G-B-QFN32 Tech Specifications
Silicon Labs - EFM8UB20F64G-B-QFN32 technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - EFM8UB20F64G-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	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-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

Environmental & Export Classifications

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

Parts Introduction

Manufacturer Part Number

EFM8UB20F64G-B-QFN32

Manufacturer

Energy Micro (Silicon Labs)

Introduction

Highly integrated 8-bit microcontroller with advanced peripherals and low-power features

Product Features and Performance

48MHz 8-bit CIP-51 core

64KB flash program memory

25KB RAM

20x10-bit ADC

Integrated USB, UART, SPI, SMBus, and other peripherals

Supports wide operating voltage range of 2.65V to 3.6V

Extensive low-power modes for energy-efficient operation

Product Advantages

Flexible and feature-rich 8-bit microcontroller

Optimized for low-power applications

Broad range of integrated peripherals

Ease of use with simple 8051 architecture

Key Technical Parameters

8-bit CIP-51 core

48MHz maximum operating frequency

64KB flash program memory

25KB RAM

20x10-bit ADC

Integrated USB, UART, SPI, SMBus, and other peripherals

65V to 3.6V operating voltage range

-40°C to 85°C operating temperature range

Quality and Safety Features

RoHS-compliant

Brown-out detection and reset

Power-on reset (POR)

Watchdog timer

Compatibility

Compatible with standard 8051 microcontroller architecture

Seamless integration with other Energy Micro (Silicon Labs) products

Application Areas

Suitable for a wide range of low-power embedded applications, such as:

- Industrial control

- Building automation

- Metering

- Consumer electronics

- Wearables

- IoT devices

Product Lifecycle

This product is currently in active production and is not nearing discontinuation

Replacement or upgrade options are available from the manufacturer

Key Reasons to Choose This Product

Highly integrated 8-bit microcontroller with a broad range of advanced peripherals

Optimized for low-power operation with extensive power-saving modes

Ease of use with the familiar 8051 architecture

Reliable and robust design with safety features

Wide operating temperature range and RoHS compliance

Seamless compatibility with other Energy Micro (Silicon Labs) products

Availability of replacement and upgrade options from the manufacturer

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs EFM8UB20F64G-B-QFN32

Product Attribute
Part Number	EFM8UB20F64G-B-QFN32	EFM8UB20F32G-A-QFP48	EFM8UB20F32G-B-QFP32	EFM8UB20F32G-A-QFN32
Manufacturer	Silicon Labs	Silicon Labs	Silicon Labs	Silicon Labs
Connectivity	I²C, SMBus, SPI, UART/USART, USB	EBI/EMI, I²C, SMBus, SPI, UART/USART, USB	I²C, SMBus, SPI, UART/USART, USB	I²C, SMBus, SPI, UART/USART, USB
Base Product Number	EFM8UB20	EFM8UB20	EFM8UB20	EFM8UB20
Supplier Device Package	32-QFN (5x5)	48-TQFP (7x7)	32-QFP (7x7)	32-QFN (5x5)
Package	Tube	Tray	Tray	Tube
Voltage - Supply (Vcc/Vdd)	2.65V ~ 3.6V	2.65V ~ 3.6V	2.65V ~ 3.6V	2.65V ~ 3.6V
Core Processor	CIP-51 8051	CIP-51 8051	CIP-51 8051	CIP-51 8051
Data Converters	A/D 20x10b	A/D 32x10b	A/D 20x10b	A/D 20x10b
RAM Size	4.25K x 8	2.25K x 8	2.25K x 8	2.25K x 8
Program Memory Size	64KB (64K x 8)	32KB (32K x 8)	32KB (32K x 8)	32KB (32K x 8)
Package / Case	32-VFQFN Exposed Pad	48-TQFP	32-LQFP	32-VFQFN Exposed Pad
Speed	48MHz	48MHz	48MHz	48MHz
Number of I/O	25	40	25	25
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Series	Universal Bee	Universal Bee	Universal Bee	Universal Bee
Oscillator Type	Internal	Internal	Internal	Internal
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
EEPROM Size	-	-	-	-
Core Size	8-Bit	8-Bit	8-Bit	8-Bit
Program Memory Type	FLASH	FLASH	FLASH	FLASH
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

EFM8UB20F64G-B-QFN32 Datasheet PDF

Download EFM8UB20F64G-B-QFN32 pdf datasheets and Silicon Labs documentation for EFM8UB20F64G-B-QFN32 - Silicon Labs.

Datasheets: EFM8UB2 Datasheet.pdf
PCN Packaging: Labeling Change 14/Dec/2021.pdf IC/SIP MOQ Chg 11/Jan/2022.pdf
PCN Assembly/Origin: Site Change 18/Jan/2022.pdf

Customers Also Interested in

Recommended Products

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

Use your express account for shipment if you have one.
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

Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
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
America	Brazil	7
Europe	Germany	5
	United Kingdom	4
	Italy	5
Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
Asia	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 -

Efficient Supply Management
Cost-Saving Procurement
Fast Sourcing & Delivery

Contact us if you have any questions.

Phone
+00852 9146 4856
Email
info@allelco.com

Certifications & Memberships