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Link naar de fabrikant. Link to the manufacturer.

OKI (?) - 4 Megabit

M51V4260-70J
^^^---------------- M51 = OKI
M51V4260-70J
   ^--------------- V = 3,3volt / (blank) = 5volt
M51V4260-70J
    ^-------------- 1 = 16 Megabit chip: Click here
                    4 = 4  Megabit chip
M51V4260-70J
               ?--- 8 = 1K refresh
                    7 = 2K refresh
                    6 = 4K refresh
M51V4260-70J
     ^^^----------- Internal Organization: 
                    10 = 4Meg x 1
                    26 = 256K x 16
                    40 = 1Meg x 4
                    80 = 512K x 8
                    90 = 512K x 9
M51V4260-70J
       ^----------- 0 = Fast Page
                    5 = EDO
M51V4260-70J
         ^^-------- Snelheid: 50=50ns / 60=60ns / 70=70ns

OKI (?) - 16 Megabit

M51V17160-70J
^^^---------------- M51 = OKI
M51V17160-70J
   ^--------------- V = 3,3volt / (blank) = 5volt
M51V17160-70J
    ^-------------- 1 = 16 Megabit chip
                    4 = 4  Megabit chip: Click here
M51V17160-70J
     ^------------- 8 = 1K refresh
                    7 = 2K refresh
                    6 = 4K refresh
M51V17160-70J
      ^^----------- Internal Organization: 
                    10 = 16Meg x 1: check module size/banks
                    16 = 1Meg x 16: check module size/banks
                    40 = 4Meg x 4 : check module size/banks
                    80 = 2Meg x 8 : check module size/banks
M51V17160-70J
        ^---------- 0 = Fast Page
                    5 = EDO
M51V17160-70J
          ^^------- Snelheid: 50=50ns / 60=60ns / 70=70ns

OKI (?) - 64 Megabit

51V17405B-60
^^----------------- 51 = OKI
51V17405B-60
  ^---------------- V = 3,3volt / (blank) = 5volt
51V17405B-60
   ^--------------- 1 = 16 Megabit chip
                    4 = 4  Megabit chip: Click here
51V17405B-60
    ^-------------- 8 = 1K refresh
                    7 = 2K refresh
                    6 = 4K refresh
51V17405B-60
     ^^------------ Internal Organization: 
                    10 = 16Meg x 1: check module size/banks
                    16 = 1Meg x 16: check module size/banks
                    40 = 4Meg x 4 : check module size/banks
                    80 = 2Meg x 8 : check module size/banks
51V17405B-60
       ^----------- 0 = Fast Page
                    5 = EDO
51V17405B-60
          ^^------- Snelheid: 50=50ns / 60=60ns / 70=70ns