74HC74 Dual D-Type Flip-Flop
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dual D positive edge triggered flip-flop with preset and clear
The 74HC74 is a dual positive edge triggered D-type flip-flop. Having individual data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQ outputs. Data at the nD-input, that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition, is stored in the flip-flop and appears at the nQ output. Schmitt-trigger action in the clock input, makes the circuit highly tolerant to slower clock rise and fall times.
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