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Why most of the interrupts in the microprocessor are active low?
Wiki User
∙ 10y ago
If you consider the transistor level of a module, active low means the capacitor in the output terminal gets charged or discharged based on low to high and high to low transition respectively.
When it goes from high to low it depends on the pull down resistor that pulls it down and it is relatively easy for the output capacitance to discharge rather than charging. hence people prefer using active low signals.
Wiki User
∙ 10y ago
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