Patent ID: 6163492
Filing Date: 2000-12-19
Classification: G11C,H03K

Abstract:
A programmable latch comprising:a first terminal for receiving a first voltage;a second terminal for receiving a second voltage;a terminal T1 for providing a signal indicating a state of the programmable latch;a programmable electrical path including a non-volatile programmable element such that when the programmable element is conductive, the programmable path connects the terminal T1 to the first terminal, and when the programmable element is non-conductive, the programmable path does not connect the terminal T1 to the first terminal;a variable-impedance electrical path between the terminal T1 and the second terminal, wherein the impedance of the electrical path is controlled by a signal on the terminal T1; anda diode for keeping a voltage on the terminal T1 within a predetermined range of values before power is supplied to the latch, to prevent the latch from assuming an incorrect state when power is supplied to the latch.