Toshiba (TC) - 16/64 Megabit

How do I read the type number?

TC51V17400CSJ-60
^^^---------------- TC5 = Hitachi Memory
TC51V17400CSJ-60
    ^-------------- V = 3,3volt / (blank) = 5volt
TC51V17400CSJ-60
     ^------------- 1 = 16 Megabit chip
                    6 = 64 Megabit chip
                    4 = 4  Megabit chip
                    8 = SRAM chip
TC51V17400CSJ-60
      ^------------ 8 = 1K refresh
                    7 = 2K refresh
                    6 = 4K refresh
TC51V17400CSJ-60
       ^^---------- Internal Organization: 
                    10 = 16Meg x 1
                    16 = 1Meg x 16
                    40 = 4Meg x 4 
                    80 = 2Meg x 8 
TC51V17400CSJ-60
         ^--------- 0 = Fast Page
                    5 = EDO
TC51V17400CSJ-60
              ^^--- Speed: 50=50ns / 60=60ns / 70=70ns