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Whether it’s for smart home applications, industrial automation, or automotive electronics, selecting the right main control chip is often the key to project success. NXP’s i.MX series, as a star product line in the field of edge computing, has numerous models that can easily overwhelm developers.
Today, we will take a closer look at the three most popular models: i.MX 8M Plus, i.MX 93, and i.MX RT1170. After reading this article, you will be able to easily find the most suitable chip for your project!
Three Strong Contenders: Start with a Chart to Make Your Choice
In-Depth Analysis: Unique Features of the Three Star Models
🎯 i.MX 8M Plus: The All-Rounder for Multimedia and AI
If your project requires both powerful audio and video processing capabilities and AI inference functions, the i.MX 8M Plus is almost the best choice available on the market.
Main Features:
• Independent NPU (Neural Processing Unit): Provides up to 2.3 TOPS of dedicated AI computing power, efficiently handling AI tasks such as visual and speech recognition without consuming CPU resources.
• Top-notch multimedia capabilities: Supports 4K video encoding/decoding, perfectly processing high-definition video streams.
• Rich interfaces: Dual Gigabit Ethernet, MIPI-CSI/DSI, etc., offering strong expandability.
Suitable Scenarios: Smart NVRs, service robots, high-end smart speakers, medical imaging devices, and other projects with high demands for audio-visual and AI capabilities.
🚀 i.MX 93: The Disruptor of Energy Efficiency
As a new member of the i.MX series, the i.MX 93 breaks traditional boundaries with its extremely high energy efficiency and cost-effectiveness, making it particularly suitable for applications that require certain AI capabilities while being power-sensitive.
Main Features:
• Arm Ethos-U65 microNPU: Provides 1 TOPS of AI computing power with extremely high energy efficiency, optimized for edge AI.
• Heterogeneous architecture: Cortex-A55 application processor + Cortex-M33 real-time controller, solving two types of problems with one chip.
• High integration: Built-in PMIC power management chip, significantly reducing product size and cost.
Suitable Scenarios: Smart home control, portable medical devices, facial recognition access control, in-vehicle smart terminals, and other projects that require a balance between performance and power consumption.
⚡ i.MX RT1170: The Ultimate Player for Real-Time Control and Connectivity
When your project requires extreme real-time response, strong connectivity, and low power consumption without the need to run complex operating systems like Linux, the i.MX RT1170, a crossover processor (MCU), will be your ultimate weapon.
Main Features:
• Industry’s highest performance MCU: Cortex-M7 core with a clock frequency of up to 1GHz, providing astonishing real-time processing capabilities.
• Dual-core architecture: M7+M4 dual cores can handle different real-time tasks separately, offering more flexible design.
• Rich connectivity options: Supports Gigabit Ethernet, CAN-FD, USB2.0, and almost all industrial interfaces.
Suitable Scenarios: Industrial automation, motor control, smart grids, traffic systems, and other applications requiring deterministic real-time responses.
III. Industry Reality: The “Ballast” of the Supply Chain
In the electronics manufacturing industry, the STM32F103 plays a unique role:
King of Backup Chips: When domestic chips face capacity or compatibility issues causing project delays, the STM32F103 is often the first choice for rescue.
Price Anchor: Its price fluctuations (such as rising to hundreds during the pandemic) are even used as one of the indicators to measure the health of the industry supply chain.
Long-tail Demand: Many old devices still require this chip for repairs, and ST has not yet included it in the discontinuation plan.
How to Choose? Remember These Three Points!
1. Need strong multimedia + strong AI? → Choose i.MX 8M Plus
2. Need a balance of AI + energy efficiency? → Choose i.MX 93
3. Need real-time control + rich connectivity? → Choose i.MX RT1170
It is worth mentioning that all three chips enjoy NXP’s unified MCUXpresso development environment, making software porting and reuse very convenient, significantly reducing development and learning costs.
Final Thoughts
There is no best chip, only the most suitable chip.i.MX 8M Plus, i.MX 93, and i.MX RT1170 represent NXP’s top capabilities in three different technical directions.
I hope this comparison helps you clear the fog and find the perfect brain for your next creative project!
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