DS1866 One Time Programmability (OTP). The DS1866 can be easily used as an OTP device. This can be accomplished by terminating the P0, P1, or P2 to desired logic levels during system manufacturing. On power up, the value of P0, P1, and P2 will then set the wiper position setting of the DS1866. DS1866 BLOCK DIAGRAM Figure 1 3 of 5 102199