The 100331 contains three D-type, edge-triggered master/slave flip-flops with true and complement outputs, a Common Clock (CP_C), and Master Set (MS) and Master Reset (MR) inputs. Each flip-flop has individual Clock (CP_n), Direct Set (SD_n) and Direct Clear (CD_n) inputs. Data enters a master when both CP_n and CP_C are LOW and transfers to a slave when CP_n or CP_C (or both) go HIGH. The Master Set, Master Reset and individual CD_n and SD_n inputs override the Clock inputs. All inputs have 50 k Ohm pull-down resistors.