68452
680x0 family bus arbiter.

       +--------------+
   VCC |1    +--+   28| GND
   VCC |2           27| /BCLR
  /GT4 |3           26| /GT0
 /REQ3 |4           25| /REQ4
  /GT5 |5           24| /GT1
 /REQ2 |6           23| /REQ5
 /REQ1 |7           22| /REQ6
   GND |8   68452   21| /REQ7
 /REQ0 |9           20| /BG
  /LEI |10          19| /BR
/BGACK |11          18| /GT2
  /GT7 |12          17| /GT3
  /GT6 |13          16| VCC
   GND |14          15| VCC
       +--------------+

[This information is part of the GIICM]