Integrated OTP memory for providing MTP memory
Abstract:
An integrated One-Time Programmable (OTP) memory to emulate an Multiple-Time Programmable (MTP) memory with a built-in program count tracking and block address mapping is disclosed. The integrated OTP memory has at least one non-volatile block register and count register to respectively store block sizes and program counts for different block/count configurations. The count register can be programmed before each round of programming occurs to indicate a new block for access. The integrated OTP memory also can generate a block address based on values from the count and block registers. By combining the block address with the lower bits of an input address, a final address can be generated and used to access different blocks (associated with different program counts) in the OTP memory to mimic an MTP memory.
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