It can be seen that the ICs has been enclosed within the package 256-BBGA.This module is included in a package named Tray.Using Surface Mount, integrated circuit is mounted.Various integrated circuits use this type of Multi-Queue Flow-Control.Similar integrated circuit systems can be found by searching for the IDT72V51253 family.
72V51253L6BBG Features
72V51253L6BBG Applications
There are a lot of Renesas Electronics America Inc. 72V51253L6BBG Specialized ICs applications.
μP Switch Interfacing
Authentication of Medical Sensors and Tools
All AC-DC converters with X capacitors of 100 nF up to 6 mF