The application relates to a 16Bit off-
chip one-time programmable circuit, which belongs to the technical field of
programming circuits and comprises basic storage units, a
clock module, a
pulse generator module, a counter module, a latch module, a code decoder module, a shutdown
delay module and a switch module. Under the
joint action of the related modules, the
electromigration resistance change memory is easy to realize due to the
resistor device, the
mask plate manufacturing cost is reduced, the current for causing the
electromigration of the
resistor is smaller than the current for fusing the FUSE
resistor, the
metal splashing does not affect the safety of the surrounding circuit, the area required by the
electromigration resistance change memory is small, the
chip flow cost is reduced, the
comparator can detect the
slight change of the resistance value, the
fault tolerance rate of data writing is increased to a certain extent, data can be written after the whole is packaged into a
chip, and the calibration of the parameters of the chip in the
actual use environment is facilitated.