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ThreadX Industrial Grade RTOS

ThreadX is Express Logic's Industrial Grade Real-Time Operating System (RTOS) designed specifically for deeply embedded, real-time, and IoT applications. ThreadX has been certified to the highest TUV and UL certification specifications for use in safety-critical devices and systems. ThreadX has over 6.2 Billion deployments, in a wide variety of products, including consumer devices, medical electronics, and industrial control equipment.

ThreadX Industrial Grade RTOS

ThreadX provides an easy to use, high performance and Industrial Grade RTOS designed to help embedded development engineers get to market fast.

Small Footprint

ThreadX only needs a remarkably small 2KB instruction area and 1KB of RAM for its minimal footprint. This is achieved largely as a result of its non-layered picokernel™ architecture and automatic scaling.


ThreadX achieves a sub-microsecond context switch on most popular processors and is significantly faster overall than other commercial RTOSes. In addition to being fast, ThreadX is highly-deterministic - ThreadX achieves the same fast performance if there are 200 threads ready or just 1.

Simple, Easy-To-Use

ThreadX is very simple to use. The ThreadX API is both intuitive and highly functional. The API names are made of real words and not the “alphabet soup” and/or the highly abbreviated names that are so common in other RTOS products.

Express Logic Inc

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