name: HT6P20A function: 2**24 OTP Encoder package: DIP/NSOP8,8 manufacturer: Holtek +--()--+ PGMB | 1 8| SIO VSS | 2 7| VPP OSC2 | 3 6| VDD OSC1 | 4 5| DOUT +------+ This pinout came from the Chipdir: http://www.chipdir.org/