name: 271024 function: 64kx16 EPROM package: DIL,40 manufacturer: added-by: Marko Virkkula +--()--+ VPP | 1 40| VCC /CE | 2 39| /PGM D15 | 3 38| D14 | 4 37| A15 D13 | 5 36| A14 D12 | 6 35| A13 D11 | 7 34| A12 D10 | 8 33| A11 D9 | 9 32| A10 D8 |10 31| A9 GND |11 30| GND D7 |12 29| A8 D6 |13 28| A7 D5 |14 27| A6 D4 |15 26| A5 D3 |16 25| A4 D2 |17 24| A3 D1 |18 23| A2 D0 |19 22| A1 /OE |20 21| A0 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/