Synchronous FIFO for high-speed data buffering — now obsolete
The Infineon (formerly Cypress) CY7C4255-10AXC is a synchronous FIFO memory organized as 144K (8K x 18) with a data rate of 100 MHz and an access time of 8 ns. Designed for uni-directional, depth- and width-expandable buffering, it supports programmable flags and retransmit capability, making it suitable for high-speed data acquisition, telecom line cards, and video frame buffers where deterministic latency matters.
Obsolete — no direct replacement on record
This part is officially marked as Obsolete by the manufacturer. There is no listed successor order code in the available records. For production continuity, buyers should secure inventory through independent distribution channels while date-code-proven stock remains accessible.
8 ns access time at 100 MHz — timing margin matters
The 8 ns access time and 100 MHz clock rate are specified in the datasheet. The 45 mA maximum supply current sets the power budget.