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View Full-Size ImageThe 74HC/1 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT175 have four edge-triggered, D-type flip-flops with individual D inputs and both Q and Q outputs.
The common clock (CP) and master reset (MR) inputs load and reset (clear) all flip-flops simultaneously.
The state of each D inputone set-up time before the LOW-to-HIGH clock transitionis transferred to the corresponding output (Qn) of the flip-flop.
All Qn outputs will be forced LOW independently of clock or data inputs by a LOW voltage level on the MR input. The device is useful for applications where both the true and complement outputs are required and the clock and master reset are common to all storage elements.
