0066-115XX-XXYX

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Bally Address IC

Pinout obtained from Astrocade schematic.

       +-----+--+-----+
   GND |1    +--+   40| Vgg
   Vdd |2           39| /IORQ
   MA0 |3           38| MXD5
   MA1 |4           37| MXD4
   MA2 |5           36| MXD3
   MA3 |6           35| MXD2
   MA4 |7           34| MXD1
   MA5 |8           33| MXD0
  RAS0 |9           32| MDX6
  RAS1 |10          31| MDX7
  RAS2 |11          30| /INT
  RAS3 |12          29| /LIGHT PEN
  TEST |13          28| /Φ
/WRCTL |14          27| Φ
LTCHD0 |15          26| VERTICAL DRIVE
 /WAIT |16          25| HORIZONTAL DRIVE
 /MREQ |17          24| A15 
   /M1 |18          23| /RFSH
   A14 |19          22| A12
   /RD |20          21| A13
       +--------------+

Vdd: +5v
Vgg: +10v