name: AY-3-3810A function: Programmable Sound Generator package: 40 Pin DIP,40 manufacturer: added-by: Shane Bearham comment: / = BAR or NOT +--()--+ Vss (gnd) | 1 40| Vcc (+5v) nc | 2 39| nc Analog Channel B | 3 38| Analog Channel C Analog Channel A | 4 37| DA0 nc | 5 36| DA1 IOB7 | 6 35| DA2 IOB6 | 7 34| DA3 IOB5 | 8 33| DA4 IOB4 | 9 32| DA5 IOB3 |10 31| DA6 IOB2 |11 30| DA7 IOB1 |12 29| BC1 IOB0 |13 28| BC2 IOA7 |14 27| BDIR IOA6 |15 26| nc IOA5 |16 25| A8 IOA4 |17 24| /A/9 IOA3 |18 23| /R/E/S/E/T IOA2 |19 22| Clock IOA1 |20 21| IOA0 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/