Response: Unfortunately, we do not manufacture the FIFO parts CY7C460, CY7C462, CY7C464 & CY7C466. These FIFO parts have been sold to the QP Semiconductor Company. The complete list of the parts sold to QP Semiconductor are listed below in the file "Obsolete FIFO parts.pdf".
For further information on these FIFO parts, Please contact QP Semiconductor(http://www.qpsemi.com).
However, We are actively continuing to support our present FIFO portfolio. Please refer to the FIFO Product Selector Guide (For all active parts), "One Page PSG - SPCM.xls" attached below.