An embodiment of the present invention is directed to a circuit for
indicating the program status of an EPROM. The circuit includes a first
and second transistor coupled to a first voltage potential. The circuit
further includes a latching circuit coupled to the first and second
transistors. The latching circuit outputs a first output value when the
current through the first transistor is greater than the current through
the second transistor and a second output value when less. The circuit
further includes a capacitive element coupled between a gate of the first
transistor and a third voltage potential, the capacitance of the
capacitive element being such that the output of the latching circuit is
always a first digital state prior to programming the EPROM and a second
digital state after programming the EPROM.