Rolling-code generator uses flash microcontroller

Posted on Dec 4, 2012

Many security-alarm systems require the use of a random number. A computer program uses this random number to create a sequence of random numbers to prevent unwanted visitors from gaining entry into a protected facility. You can use a `rolling-code generator` to produce random numbers. To implement such a generator, you would typically need a microcontroller with external memory. Instead, you can use National Semiconductor`s COP8SBR flash µC with `virtual-EEPROM` technology.

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