DM54L95 4-Bit Parallel Access Shift Registers June 1989 DM54L95 4-Bit Parallel Access Shift Registers General Description These 4-bit registers feature parallel and serial inputs parallel output mode control and two clock inputs The registers have three modes of operation Parallel (broadside) load Shift right (the direction QA toward QD) Shift left (the direction QD toward QA) Parallel loading is accomplished by applying the four bits of data and taking the mode control input high The data is loaded into the associated flip-flops and appears at the outputs after the high-to-low transition of the clock-2 input During loading the entry of serial data is inhibited Shift right is accomplished ...

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