5/25/2023 0 Comments Hold time violation![]() Moreover, if a circuitry is used to create the pulse from a normal square wave clock, the whole circuit behaves really as a flip-flop. ![]() Pulsed latch flip-flopĪ pulsed-latch flip-flop is nothing else than a normal latch, where the clock is driven by a very short pulse in this way, the time in which the latch is transparent is very short, and it in facts behaves like a flip-flop. ![]() The flip-flop has the same pin configuration, but has a difference: it holds the value with the clock both high and low, and samples the new value on the edge (positive or negative) of the clock. When the clock is at the other level - low in this case - the output is held at the value it was before the clock commuted. First: the difference between latch and flip-flopĪs you probably know, a latch is a circuit which in the basic form has an input, an output and a clock when the clock is at a certain value - say high, for a positive latch - the latch is transparent, which means that the output replicates the input. Olin has been clear, but I would add some details about the Pulsed Latch Register, and why this architecture may have different Hold Time requirements respect to other flip-flops.
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