A81A92A103A114A125A136A147A158CLK9XOUT10XIN11AD012AD113AD214AD315AD416AD517AD618AD719GND20NMI#21RSTA#22RSTB#23RSTC#24INTR#25INTA#26S127RFSH#28S029ALE30WR#31RD#32RESET_IN#33IO_M#34BACK#35BREQ#36RESET_OUT37WAIT#38PS#39VCC40