CY7C419/21/25/29/33256/512/1K/2K/4K x 9 Asynchrono.
CY7C4255 - 8K/16Kx18 Deep Sync FIFOs
CY7C4251V - Low-Voltage 64/256/512/1K/2K/4K/8K x 9 Synchronous FIFOs
CY7C425 - 256/512/1K/2K/4K x 9 Asynchronous FIFO
CY7C4255V - 32K/64K x 18 Low Voltage Deep Sync FIFOs
