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HomeProductsIntegrated Circuits (ICs)Embedded - MicrocontrollersEFM8BB21F16G-C-QFN20R
EFM8BB21F16G-C-QFN20R Image
Image may be representation.
See specifications for product details.

EFM8BB21F16G-C-QFN20R - Silicon Labs

Manufacturer Part Number
EFM8BB21F16G-C-QFN20R
Manufacturer
Energy Micro (Silicon Labs)
Allelco Part Number
32D-EFM8BB21F16G-C-QFN20R
ECAD Model
Parts Description
IC MCU 8BIT 16KB FLASH 20QFN
Detailed Description
Package
20-WFQFN Exposed Pad
Data sheet
EFM8BB2 Datasheet.pdf
EFM8BB2 Reference Manual.pdf
RoHs Status
RoHS Compliant
In stock: 46241

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Quantity

Specifications

EFM8BB21F16G-C-QFN20R Tech Specifications
Silicon Labs - EFM8BB21F16G-C-QFN20R technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs - EFM8BB21F16G-C-QFN20R

Product Attribute Attribute Value  
Manufacturer Energy Micro (Silicon Labs)  
Voltage - Supply (Vcc/Vdd) 2.2V ~ 3.6V  
Supplier Device Package 20-QFN (3x3)  
Speed 50MHz  
Series Busy Bee  
RAM Size 2.25K x 8  
Program Memory Type FLASH  
Program Memory Size 16KB (16K x 8)  
Peripherals Brown-out Detect/Reset, POR, PWM, WDT  
Package / Case 20-WFQFN Exposed Pad  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Oscillator Type Internal  
Operating Temperature -40°C ~ 85°C (TA)  
Number of I/O 16  
Mounting Type Surface Mount  
EEPROM Size -  
Data Converters A/D 15x12b  
Core Size 8-Bit  
Core Processor CIP-51 8051  
Connectivity I²C, SMBus, SPI, UART/USART  
Base Product Number EFM8BB21  

Parts Introduction

Manufacturer Part Number

EFM8BB21F16G-C-QFN20R

Manufacturer

Silicon Labs

Introduction

EFM8BB21F16G-C-QFN20R, part of the Busy Bee series, is an 8-Bit high-performance, low-power embedded microcontroller.

Product Features and Performance

8-Bit CIP-51 8051 Core

Clock speed up to 50MHz

Multi-protocol communication interfaces: I2C, SMBus, SPI, UART/USART

Integrated peripherals: Brown-out Detect/Reset, Power-On Reset, PWM, Watchdog Timer

16 I/O pins for versatile control and interfacing

16KB FLASH program memory

25KB RAM

Internal oscillator for reliable timing

12-bit analog-to-digital converters, 15 channels

Product Advantages

Low power consumption suitable for battery-operated devices

Built-in communication protocols catering to a wide range of applications

Robust set of peripherals enables versatile embedded solutions

Compact QFN20 package for space-constrained applications

Key Technical Parameters

8-Bit CIP-51 core

50MHz maximum speed

16KB FLASH, 2.25KB RAM

2V to 3.6V supply voltage

Temperature range from -40°C to +85°C

Quality and Safety Features

Brown-out detect and power-on reset for system integrity

Watchdog timer for system recovery and protection

Compatibility

Compatible with industry-standard I2C, SMBus, SPI, and UART/USART communication protocols

QFN20 package compatible with surface mount technology for PCB integration

Application Areas

Consumer electronics

Industrial automation

Battery management systems

Sensor interfacing and data acquisition

Product Lifecycle

Product status is active

No noted discontinuation, with replacements or upgrades currently not specified

Several Key Reasons to Choose This Product

Optimized for energy efficiency, ideal for portable and remote applications

High integration reduces external component count, lowering system cost

Comprehensive set of peripherals supports complex functionalities without extra chips

Silicon Labs' renowned quality and reliability in embedded solutions

Broad operating temperature range ensures performance in harsh environments

Offered in a tape and reel package for automated assembly processes

Parts with Similar Specifications

The three parts on the right have similar specifications to Silicon Labs EFM8BB21F16G-C-QFN20R

Product Attribute EFM8BB21F16G-C-QFN20R EFM8BB31F16I-B-5QFN32 EFM8BB10F8G-A-QFN20R EFM8BB10F8I-A-QFN20R
Part Number EFM8BB21F16G-C-QFN20R EFM8BB31F16I-B-5QFN32 EFM8BB10F8G-A-QFN20R EFM8BB10F8I-A-QFN20R
Manufacturer Silicon Labs Silicon Labs Silicon Labs Silicon Labs
Number of I/O 16 29 16 16
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Speed 50MHz 50MHz 25MHz 25MHz
Package Tape & Reel (TR) Tube Tape & Reel (TR) Tape & Reel (TR)
Program Memory Type FLASH FLASH FLASH FLASH
Package / Case 20-WFQFN Exposed Pad 32-WFQFN Exposed Pad 20-UFQFN Exposed Pad 20-WFQFN Exposed Pad
Base Product Number EFM8BB21 EFM8BB31 EFM8BB10 EFM8BB10
Core Processor CIP-51 8051 CIP-51 8051 CIP-51 8051 CIP-51 8051
Core Size 8-Bit 8-Bit 8-Bit 8-Bit
EEPROM Size - - - -
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 125°C (TA) -40°C ~ 85°C (TA) -40°C ~ 125°C (TA)
RAM Size 2.25K x 8 2.25K x 8 512 x 8 512 x 8
Connectivity I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART I²C, SMBus, SPI, UART/USART
Data Converters A/D 15x12b A/D 20x10/12b SAR; D/A 2x12b A/D 15x12b A/D 15x12b
Series Busy Bee Busy Bee Busy Bee Busy Bee
Supplier Device Package 20-QFN (3x3) 32-QFN (5x5) 20-QFN (3x3) 20-QFN (3x3)
Program Memory Size 16KB (16K x 8) 16KB (16K x 8) 8KB (8K x 8) 8KB (8K x 8)
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
Voltage - Supply (Vcc/Vdd) 2.2V ~ 3.6V 2.2V ~ 3.6V 2.2V ~ 3.6V 2.2V ~ 3.6V
Oscillator Type Internal Internal Internal Internal

EFM8BB21F16G-C-QFN20R Datasheet PDF

Download EFM8BB21F16G-C-QFN20R pdf datasheets and Silicon Labs documentation for EFM8BB21F16G-C-QFN20R - Silicon Labs.

Datasheets
EFM8BB2 Datasheet.pdf EFM8BB2 Reference Manual.pdf
PCN Packaging
Labeling Change 14/Dec/2021.pdf Mult Dev Label Chgs 20/Oct/2021.pdf
PCN Assembly/Origin
2.73KHz.pdf
PCN Design/Specification
Cylindrical Battery Holders.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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EFM8BB21F16G-C-QFN20R Image

EFM8BB21F16G-C-QFN20R

Silicon Labs
32D-EFM8BB21F16G-C-QFN20R

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