WP-1001 Asynchronous State Machine vs MCU

Asynchronous state machines can take on a variety of embedded control applications that would formerly have been the exclusive domain of microcontrollers. The easily configured asynchronous state machines brings key advantages of ultra-fast state transitions, leakage level static current consumption, robust design, and supply voltage tolerance so important in IoT, portable, mobile and wearable applications. When designing portable battery powered systems, size and battery life constraints are often the most severe challenges to overcome. One traditional way to pack a lot of functionality into a small size and power budget is to use a low power microcontroller such as TI’s popular MSP430. These types of ultra-low power microcontrollers offer high levels of flexibility and are available in small packages, allowing a system to run for not only days, but months and years on a single battery cell. Silego Technology has taken a different approach in attacking this same problem, by adding a user programmable Asynchronous State Machine macrocell to our fifth generation GreenPAK™ product family. This white paper contains comparisons, design tradeoffs, and tips that the user may consider when choosing between a variety of microcontroller options, and doing the same job using the asynchronous state machine inside Silego’s GreenPAK.


Asynchronous State Machine, ASM, MCU

See full list of Application Notes

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