Where can I find a data sheet for CY62155 that includes CY62155E-3XWI?
If not the full data sheet at a minimum, what does the last "5" denote?
The seventh character in the Async SRAM appears to be Bus Width.
From the CY62126 datasheet, Bus width: 6 = x 16
From the CY62157 datasheet, Bus Width: 7 = × 16
From the CY62158 datasheet, Bus Width: 8 = x 8
The CY62155 is the die actually, so the datasheet is not available on the website.
The last 5 denotes the bus width and it is also for a x16 device.