Cypress CY7C419-15JC 256 x 9 Asynchronous FIFO Memory

Manufactured by Cypress - 32 Pin PLCC SMD Package

The CY7C419 is a first-in first-out (FIFO) memory. They are 256 words by 9 bits wide. Each FIFO memory is organized such that the data is read in the same sequential order that it was written. Full and empty flags are provided to prevent overrun and underrun. Three additional pins are also provided to facilitate unlimited expansion in width, depth, or both. The depth expansion technique steers the control signals from one device to another in parallel. This eliminates the serial addition of propagation delays, so that throughput is not reduced. Data is steered in a similar manner.