Device for the detection of the logical state of a component, whose impedance varies according to it's state.

摘要

The invention relates to a device for detecting the logic state of a component whose impedance varies according to this state comprising means (J1, R1) of generating a current and a voltage for measurement so that detection takes place with a constant current consumption regardless of the state of the component, the device further comprising measurement means (J2, R2, AD) ensuring detection of the logic state of the component (CEL). Applications to read memories whose impedance varies according to the logic state of the cells.