A One Time Programmable (OTP) is a Programmable Logic Device
(PLD), a one-time programmable logic device. An OTP device contains a programmable, non-volatile memory, a PROM or a PLD, which can only be written once. With PLD technology, programming can destroy a logic link or establish an additional link. Examples of this are the fuse technique and the anti-fuse technique. OTP devices cannot be reprogrammed.