A voltage detector circuit for detecting when an input voltage exceeds a trip-point voltage. The voltage detector circuit includes a nonvolatile memory cell having a select gate coupled to the input voltage, a drain coupled to a first node, a source coupled to system ground, and a floating gate. The...http://www.google.fr/patents/US5495453?utm_source=gb-gplus-shareBrevet US5495453 - Low power voltage detector circuit including a flash memory cell
Low power voltage detector circuit including a flash memory cell