Package 256-BBGA contains the ICs.A package named Tray contains integrated circuit.Mounting is done using the Surface Mount method.Basically, integrated circuit is a Multi-Queue Flow-Control.It is possible to find similar integrated circuit systems by searching for the IDT72P517*9 family.
IDT72P51759L6BBI Features
IDT72P51759L6BBI Applications
There are a lot of Renesas Electronics America Inc. IDT72P51759L6BBI Specialized ICs applications.