name: HT6P20E function: 2**24 OTP Encoder package: DIP/NSOP16,16 manufacturer: Holtek +--()--+ D1 | 1 16| D0 D2 | 2 15| PGMB D3 | 3 14| SIO VSS | 4 13| VPP D4 | 5 12| VDD D5 | 6 11| DOUT D6 | 7 10| OSC1 D7 | 8 9| OSC2 +------+ This pinout came from the Chipdir: http://www.chipdir.org/