name: 6822 function: Peripheral Interface adapter package: 40 pin DIP,40 manufacturer: Motorola added-by: Perlay +--()--+ ground | 1 40| ca1 pa0 | 2 39| ca2 pa1 | 3 38| irqa pa2 | 4 37| irqb pa3 | 5 36| reg sel0 pa4 | 6 35| reg sel1 pa5 | 7 34| reset AL pa6 | 8 33| d0 pa7 | 9 32| d1 pb0 |10 31| d2 pb1 |11 30| d3 pb2 |12 29| d4 pb3 |13 28| d5 pb4 |14 27| d6 pb5 |15 26| d7 pb6 |16 25| E pb7 |17 24| chip sel1 cb1 |18 23| chip sel2 cb2 |19 22| chip sel0 vcc |20 21| r/w +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/