DRAM 256k x 16

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DRAM 256k x 16 (SOJ40)

4Mb, 512KB, 40000hex16 bit

IS41C16256
      +--\/--+
  VCC |1   40| gnd
 I/O0 |2   39| I/O15
 I/O1 |3   38| I/O14
 I/O2 |4   37| I/O13
 I/O3 |5   36| I/O12
  Vcc |6   35| GND
 I/O4 |7   34| I/O11
 I/O5 |8   33| I/O10
 I/O6 |9   32| I/O9
 I/O7 |10  31| I/O8
   NC |11  30| NC
   NC |12  29| *LCAS
  *WE |13  28| *UCAS
 *RAS |14  27| *OE
   NC |15  26| A8
   A0 |16  25| A7
   A1 |17  24| A6
   A2 |18  23| A5
   A3 |19  22| A4
  Vcc |20  21| GND
      +------+