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Bench Talk for Design Engineers

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Bench Talk for Design Engineers | The Official Blog of Mouser Electronics


Pull Up Your Pins: How to Size Pull-up Resistors
On October 31, 2018 in All, Circuit Protection by Mike Parks
Mike Parks
Whether to prevent floating I/O pins on an MCU or to provide an interface between two circuits, pull-up resistors are a necessity. But what size resistor should you use?
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11168 Views
Tagged With: Open drain, Open drain applications, Open drain topology, Pull-up resistors, Resistors
Beware of “Open Drains”
On February 27, 2015 in All by Mike Parks
Mike Parks
As you get more advanced with your circuits you will start seeing circuit design patterns that may at first glance seem a bit weird. One such design pattern that can be confusing is the “open drain,” also called the “open collector” (when TTL circuits are involved). For the purpose of this blog we will use the term open collector, though the general principles apply to both technologies: Field Effect Transistors (FET) and Bipolar Junction Transistors (BJT).
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19173 Views
Tagged With: BJT, FET, Open Collector, Open Drain

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