The 100350 contains six D-type latches with true and complement outputs, a pair of common Enables (Ea and Eb), and a common Master Reset (MR). A Q output follows its D input when both Ea and Eb are LOW. When either Ea or Eb (or both) are HIGH, a latch stores the last valid data present on its D input before Ea or Eb went HIGH. The MR input overrides all other inputs and makes the Q outputs LOW. All inputs have 50 k pull-down resistors.