10 ns access — the timing budget for this FIFO
The Cypress CY7C425-10JXCT is an asynchronous FIFO with a 9K (1K x 9) memory array and a 10 ns access time. That 10 ns figure is the time from read-enable assertion to valid data on the output bus — it sets the minimum cycle time for back-to-back reads and determines whether this FIFO can keep pace with a 50 MHz system clock without wait states.
The CY7C425-10JXCT is listed as obsolete. For a production BOM, this means new designs should avoid it; existing builds will need to source from surplus or broker channels. The 32-PLCC footprint is common across the CY7C42x family, so a pin-compatible drop-in from the same series may be available — verify the exact speed grade and depth against your timing and buffer requirements.
Because the CY7C425-10JXCT is obsolete, it is not available through the standard factory or authorized-distributor channel. Given the age of the part, pay close attention to date-code consistency and package marking — a clean laser etch and uniform plating on the J-leads are good signs of genuine Cypress inventory.