MM74C165 Datasheet | Fairchild Semiconductor

MM74C165 Parallel-Load 8-Bit Shift Register October 1987 Revised January 1999 MM74C165 Parallel-Load 8-Bit Shift Register General Description The MM74C165 functions as an 8-bit parallel-load, serial shift register. Data is loaded into the register independent of the state of the clock(s) when PARALLEL LOAD (PL) is low. Shifting is inhibited as long as PL is low. Data is sequentially shifted from plementary outputs, Q7 and Q7, highest-order bit (P7) first. New serial data may be entered via the SERIAL DATA (Ds) input. Serial shifting occurs on the rising edge of CLOCK1 or CLOCK2. Clock inputs may be used separately or together for bined clocking from independent sources. Either...