MC74ACT377NG ON Semiconductor

MC74AC377, MC74ACT377 Octal D FlipFlop with Clock Enable The MC74AC377/74ACT377 has eight edge-triggered, D-type flip-flops with individual D inputs and Q outputs. The common buffered Clock (CP) input loads all flip-flops simultaneously, when MC74AC377, MC74ACT377 MODE SELECT-FUNCTION TABLE Inputs Outputs Operating Mode CP CE D Q n n Load 1 L H H Load 0 L L L H X No Change Hold (Do Nothing) X H X No Change H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial = LOW-to-HIGH Clock Transition D D D D D D D D 0 1 2 3 4 5 6 7 CE DQ DQ DQ DQ DQ DQ DQ DQ CP CP CP CP CP CP CP CP CP O O O O O O O O 0 1 2 3 4 5 6 7 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Figure 3. Logic Diagram