EFM8BB21F16I-C-QFN20R The Silicon Labs EFM8BB21F16I-C-QFN20R is an 8-bit microcontroller featuring 16KB of Flash memory and operating at up to 50MHz. It is housed in a 20-QFN package.
Mfr Part #:

EFM8BB21F16I-C-QFN20R

Available from 2 distributors
Mfr Name: Silicon Labs
Silicon Labs
The Silicon Labs EFM8BB21F16I-C-QFN20R is an 8-bit microcontroller featuring 16KB of Flash memory and operating at up to 50MHz. It is housed in a 20-QFN package.
✓ Total Stock: 5,416 pcs

EFM8BB21F16I-C-QFN20R Available from 2 distributors

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EFM8BB21F16I-C-QFN20R Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
Mounting Type
Number of I
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
Speed
Supplier Device Package
Voltage

EFM8BB21F16I-C-QFN20R Description

Short technical summary and product information.

The EFM8BB21F16I-C-QFN20R, part of the Busy Bee family from Silicon Labs, is an 8-bit microcontroller designed for space-constrained applications. It offers a comprehensive feature set including a 50MHz CIP-51 8051 core, 16KB of Flash program memory, and 2.25KB of RAM.

 

This microcontroller supports a supply voltage range of 2.2V to 3.6V and features 16 multifunction I/O pins. Key peripherals include a 12-bit ADC, multiple timers, and communication interfaces such as I2C, SMBus, SPI, and UART/USART. It also includes essential peripherals like Brown-out Detect/Reset, Power-On Reset (POR), Pulse Width Modulation (PWM), and a Watchdog Timer (WDT).

 

The device is available in a compact 20-WFQFN exposed pad package, suitable for surface mounting. Its operating temperature range is -40°C to 125°C (TA), making it versatile for various environmental conditions. The internal oscillator provides reliable clocking for the system.

EFM8BB21F16I-C-QFN20R Quick Information

Product Type: Microcontroller
Series: Busy Bee
Canonical Name: EFM8BB21F16I-C-QFN20R Microcontroller
Subcategory: 8-Bit Microcontroller

EFM8BB21F16I-C-QFN20R Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

EFM8BB21F16I-C-QFN20R Features

  • 8-bit CIP-51 8051 core processor.
  • Up to 50MHz maximum operating frequency.
  • 16KB Flash program memory.
  • 2.25KB RAM memory.
  • 16 multifunction I/O pins.

EFM8BB21F16I-C-QFN20R Applications

  • Ideal for embedded control applications
  • Suitable for sensor interface designs
  • Used in industrial automation systems
  • Applicable in consumer electronics

EFM8BB21F16I-C-QFN20R FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the EFM8BB21F16I-C-QFN20R?

The operating voltage range is 2.2V to 3.6V.

What package type is the EFM8BB21F16I-C-QFN20R available in?

It is available in a 20-WFQFN exposed pad package, specifically a 20-QFN (3x3) supplier device package.

What is the operating temperature range for this microcontroller?

The operating temperature range is -40°C to 125°C (TA).

What is the program memory size and type?

It has 16KB of FLASH program memory.

What are the key peripherals included on the EFM8BB21F16I-C-QFN20R?

Key peripherals include a 12-bit ADC, PWM, and communication interfaces like I2C, SMBus, SPI, and UART/USART, along with Brown-out Detect/Reset, POR, and WDT.

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