DEC - Rigel – Ghidra (memory controller)
From CPU Graveyard - Die shots
					General Specifications:
         Part number:
            chip number DC250A and part number 21-33498-01
            Die marking:
            
         Core/Code/uArch:
            Cores:
            
         Die size:
            
            Transistors:
            ?
         Technology:
            ?
            Visible Layers:
            ?
        Die photo links:
            (Image's page) (Full resolution) (Thumb)
Die photo license:
            
         Die photo source:
            
        Notes:
            DEC Rigel Ghidra memory controller and bus adapter chip (G-chip)
         

