STM8 vs. AVR: Which Microcontroller Has Better Price-Performance Ratio?

June 15, 2022

Introduction: The Microcontroller Showdown

In the world of microcontrollers, STM8 and AVR are two heavyweights that dominate the market. Both microcontrollers have their pros and cons, making it difficult to determine which one has a better price-performance ratio.

But don't worry! Our Flare Compare Team is here to help you make an informed decision. We've done the research and gathered the data, so you can just sit back, relax, and enjoy this microcontroller showdown.

STM8 and AVR: A Brief Overview

First, let's introduce our contenders.

STM8 is a microcontroller from STMicroelectronics, a French-Italian multinational electronics and semiconductor manufacturer. It is a popular choice for low-cost and low-power applications, thanks to its 8-bit processing power and low energy consumption.

On the other hand, AVR is a family of microcontrollers from Atmel, an American manufacturer of semiconductors. AVR is known for its high-performance capabilities, such as its 32-bit processing power and in-system programming.

Now that we know a bit more about our contenders, let's dive into the comparison.

Price-Performance Ratio: The Numbers

To determine which microcontroller has a better price-performance ratio, we need to look at three main factors: cost, processing power, and energy consumption.

In terms of cost, STM8 is the clear winner. It is significantly cheaper than AVR, making it a popular choice for budget-conscious projects.

However, when it comes to processing power and energy consumption, AVR takes the lead. AVR has a 32-bit processing power, making it more suitable for complex applications that require high-speed processing. It also has a lower energy consumption compared to STM8, making it more efficient in terms of power usage.

In terms of specific numbers, here's a breakdown of the two microcontrollers:

STM8

  • Cost: $0.30 to $0.50 per unit
  • Processing power: 8-bit
  • Energy consumption: ranges from 0.33 mA to 1.6 mA

AVR

  • Cost: $1.00 to $5.00 per unit
  • Processing power: 32-bit
  • Energy consumption: ranges from 0.1 mA to 0.5 mA

As we can see from the numbers, STM8 is significantly cheaper than AVR, but AVR has better processing power and energy consumption.

Conclusion: Which One Should You Choose?

So, STM8 or AVR? It all depends on your project's specific requirements.

If you're working on a budget-conscious project that doesn't require high-speed processing or advanced capabilities, STM8 is your best bet. It offers a decent amount of processing power for basic applications and is excellent when it comes to price.

However, if your project requires advanced capabilities and high-speed processing, AVR is the better option. While it comes at a higher cost, it offers 32-bit processing power and better energy consumption, making it a more efficient option for complex applications.

In the end, the choice between STM8 and AVR comes down to your specific requirements and budget.

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