CD40105BMS Datasheet | Intersil

December 1992 CMOS FIFO Register Description CD40105BMS is a low-power first-in-first-out (FIFO) “elastic” storage register that can store 16 4-bit words. It is capable of handling 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 flipflop, which stores a marker bit. A “1” signifies that the position’s data is filled and a “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. When a control flip-flop is in the “0” state and sees a “1” in...