MC100E451

MC10E451, MC100E451 5 V ECL 6-Bit D Register Differential Data and Clock Description The MC10E/100E451 contains six D-type flip-flops with single-ended outputs and differential data inputs. The common clock input is also differential. The registers are triggered by a positive transition of the positive clock (CLK) input. A HIGH on the Master Reset (MR) input resets all Q outputs to LOW. The differential input structures are clamped so that the inputs of unused registers can be left open without upsetting the bias network of the device. The clamping action will assert the D and the CLK sides of the inputs. Because of the edge triggered flip-flop nature of the device simultaneously opening both the clock and data inputs will result in an output which reaches an unidentified but valid state. Note that the input clamps only operate when both inputs fall to 2.5 V below VCC. The VBB pin, an internally generated voltage supply, is available to this device only. For single-ended input conditi...