Nonvolatile counter circuit

A nonvolatile counter circuit, comprising:

• a power supply;
• flip-flop circuit means for temporarily storing information coupled to said power supply;
• a nonvolatile insulated gate type field effect memory transistor coupled to said flip-flop circuit;
• a switching element coupled in parallel with said nonvolatile memory transistor;
• transferring means coupled to said power supply for sensing a first state of said power supply and for transferring information stored in said nonvolatile memory transistor to said flip-flop circuit means upon detecting said first state of said power supply;
• erasing means coupled to said nonvolatile memory transistor for erasing information stored therein;
• short circuiting means coupled to said switching element for rendering said switching element conductive and
• writing means coupled to said power supply for writing information stored in said flip-flop circuit means into said nonvolatile memory transistor upon detecting a second state of said power supply.