A special mode activation circuit is disclosed for activating a special mode circuit within a semiconductor integrated circuit when the voltage of an input signal at an input terminal of the integrated circuit reaches a special high voltage level that is substantially above a low voltage level range...http://www.google.es/patents/US5118968?utm_source=gb-gplus-sharePatente US5118968 - Special mode activation circuit for selectively activating a special mode circuit of a semiconductor integrated circuit device
Special mode activation circuit for selectively activating a special mode ...
