RO-3-9506

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General Instrument ROM

Intellivision II schematic derived pinout:

       +-----+--+-----+
   Vcc |1    +--+   40| BC1
   /WE |2           39| BC2
R / /W |3           38| BDIR
   /CE |4           37| DB0
       |5           36| A0
       |6           35| DB1
  DB14 |7           34| A1
       |8           33| DB2
  DB13 |9           32| A2
       |10          31| DB3
  DB12 |11          30| A3
       |12          29| DB4
  DB11 |13          28| A4
 ? A10 |14          27| DB5
  DB10 |15          26| A5
  ? A9 |16          25| DB6
   DB9 |17          24| A6
  ? A8 |18          23| DB7
   DB8 |19          22| A7
/MSYNC |20          21| Vss
       +--------------+

The schematic is quite blurry. A better source is needed to confirm the NC pins and 3 high address lines.