name: 8500 function: MPU package: 40 Pin DIL,40 manufacturer: MosTek added-by: Rob Gill comment: 8 Bit MicroProcessor, used in later Commodore 64c Computers +--()--+ ø 0 in | 1 40| /RES RDY | 2 39| ø 2 out /IRQ | 3 38| R/W /NMI | 4 37| D0 AEC | 5 36| D1 Vcc | 6 35| D2 A0 | 7 34| D3 A1 | 8 33| D4 A2 | 9 32| D5 A3 |10 31| D6 A4 |11 30| D7 A5 |12 29| P0 A6 |13 28| P1 A7 |14 27| P2 A8 |15 26| P3 A9 |16 25| P4 A10 |17 24| P5 A11 |18 23| A15 A12 |19 22| A14 A13 |20 21| GND +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/