The 74HC40105; 74HCT40105 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 d
The NXP 74HC40105 and 74HCT40105 are first-in/first-out (FIFO) elastic storage registers capable of storing 16 4-bit words. These devices are designed to handle input and output data at different shifting rates, making them particularly useful as buffers between asynchronous systems. Each word position is clocked by a control flip-flop that stores a marker bit to indicate whether the position is filled or vacant.
| Storage capacity | 16 4-bit words |
|---|---|
| ESD protection HBM | exceeds 2 000 V |
| ESD protection MM | exceeds 200 V |
| Package options | DIP16, SO16, SSOP16, TSSOP16 |
It is a first-in/first-out (FIFO) elastic storage register useful as a buffer between asynchronous systems.
The status of the first control flip-flop, known as the data-in ready output (DIR), indicates if the FIFO is full.
The control functions within the FIFO are cleared, and the data content is declared invalid.