摘要:
A circuit for providing an identification signal indicative of whether or not an semiconductor device has a repaired or replaced portion therein. The circuit is enabled by a control signal which is used for controlling the semiconductor device and causes a change in power supply current flowing into the semiconductor device according to presence or absence of the repaired or replaced portion.
摘要:
A static memory circuit provided with an improved bit line precharge circuit (Q p1 - Q p3 ) includes a control circuit which disenables a bit line pull-up circuit (Q p4 , Q p5 ) during a first period through which one of the word lines (WL₁ - WL n ) to be selected performs a potential change to a selective level and enables the pull-up circuit during other period than the first period.
摘要:
@ A memory circuit provided with a control circuit which controls operations of the memory circuit in such a manner that the memory circuit is automatically set in a stand-by state when a value of a power voltage is reduced in absolute value irrespectively of a control signal from the outside and which consumes no DC current is disclosed. The control circuit comprises a load element coupled between first and second terminals, a series circuit of first and second field effect transistors coupled between the second terminal and a third terminal, the first transistor being controlled by the control signal, the second transistor being adapted to be conducting when a value of the power voltage is sufficient for allowing a normal access operation, a means for connecting the first terminal to one of the power voltage and a reference voltage, and a means for connecting the third terminal to the other of the power voltage and the reference voltage.
摘要:
A circuit for providing an identification signal indicative of whether or not an semiconductor device has a repaired or replaced potion therein. The circuit is enabled by a control signal which is used for control the semiconductor device and causes a change in power supply current flowing into the semiconductor device according to presence or absence of the repaired or replaced portion.
摘要:
@ A memory circuit provided with a control circuit which controls operations of the memory circuit in such a manner that the memory circuit is automatically set in a stand-by state when a value of a power voltage is reduced in absolute value irrespectively of a control signal from the outside and which consumes no DC current is disclosed. The control circuit comprises a load element coupled between first and second terminals, a series circuit of first and second field effect transistors coupled between the second terminal and a third terminal, the first transistor being controlled by the control signal, the second transistor being adapted to be conducting when a value of the power voltage is sufficient for allowing a normal access operation, a means for connecting the first terminal to one of the power voltage and a reference voltage, and a means for connecting the third terminal to the other of the power voltage and the reference voltage.
摘要:
A circuit for providing an identification signal indicative of whether or not an semiconductor device has a repaired or replaced potion therein. The circuit is enabled by a control signal which is used for control the semiconductor device and causes a change in power supply current flowing into the semiconductor device according to presence or absence of the repaired or replaced portion.