name: HT692 function: 3**18 Series of Decoders package: DIP18,18 manufacturer: Holtek +--()--+ A11 | 1 18| VDD A12 | 2 17| A9 D14 | 3 16| A8 D15 | 4 15| A7 VT | 5 14| A6 DIN | 6 13| A3 OSC2 | 7 12| A2 OSC1 | 8 11| A1 VSS | 9 10| A0 +------+ This pinout came from the Chipdir: http://www.chipdir.org/