74HC40105D Datasheet | Nexperia

74HC40105 4-bit x 16-word FIFO register Rev. 5 - 19 April 2019 Product data sheet 1. General description The 74HC40105 is a first-in/first-out (FIFO) "elastic" storage register that can store 16 4-bit words. It can handle input and output data at different shifting rates. This feature makes it particularly useful as a buffer between asynchronous systems. Each word position in the register is clocked by a control flip-flop, which stores a marker bit. A logic 1 signifies that the data at that position is filled and a logic 0 denotes a vacancy in that position. The control flip-flop detects the state of the preceding flip-flop and municates its own status to the succeeding flip-flop....