In a nonvolatile memory writing device that writes writing data transmitted from the microcomputer to a nonvolatile memory provided outside the microcomputer, the nonvolatile memory is a nonvolatile memory in which writing is protected and the protection is disabled by an electric signal from the microcomputer to the write-protect terminal of the nonvolatile memory, the write-protect terminal is connected to the power supply of the microcomputer, and when the electric signal from the microcomputer to the write-protect terminal is interrupted, the protection is disabled, even when the data is interrupted due to a change in the power supply voltage, it is possible to prevent garbled date due to the write protection signal during the write period of the write data.
Nonvolatile memory writing device
2025-01-07
Patent
Electronic Resource
English
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