The circuitry introduced in this invention selectively slows down the functioning
of an electronic circuit maintaining a particular state for a prolonged period
of time. This circuitry is used not only to achieve the desired effect in maintaining
security from electronic thieves trying to circumvent codes but also in other applications
such as enabling a circuit to continue to function in the event of a brief loss
of power. For example, in an RFID system, if a reader is frequency hopping, a tag
loses power for as long as about 400 milliseconds when the reader changes to other
frequencies. In a preferred embodiment, the disclosed circuitry is used in conjunction
with a destruct sequence.