摘要:
A chip damage detection device is provided that includes at least one bi-stable circuit having a first conductive line passing through an observed area of a semiconductor integrated circuit chip for damage monitoring of the observed area. The at least one bi-stable circuit is arranged to flip from a first stable state into a second stable state when a potential difference between a first end and a second end of the first conductive line changes or when a leakage current overdrives a state keeping current at the first conductive line. Further, a semiconductor integrated circuit device that includes the chip damage detection device and a safety critical system that includes the semiconductor integrated circuit device or the chip damage detection circuit is provided.
摘要:
An integrated circuit comprises electro-static discharge (ESD) protection circuitry arranged to provide ESD protection to one or more external connector(s) of the integrated circuit. The ESD protection circuitry comprises at least one ESD protection component coupled to the one or more external connectors for providing ESD protection thereto. The ESD protection circuitry further comprises an ESD connector, coupled to the one or more external connector(s), arranged to couple supplementary ESD protection to the one or more external connector(s).
摘要:
A driving circuit for generating a required firing current for a safety device comprising an arrangement of a first transistor (M2) connected in series with a second transistor (M3); and a power control transistor (M1) connected in series with the first transistor; characterised in that the first and second transistors operate in fully switched on mode (Rds(on)) and the required firing current (I(squib)) is generated by means of varying the voltage (Vc) across the gate source of power control transistor and the first and second transistors in a predetermined manner.
摘要:
An integrated circuit comprises electro-static discharge (ESD) protection circuitry arranged to provide ESD protection to one or more external connector(s) of the integrated circuit. The ESD protection circuitry comprises at least one ESD protection component coupled to the one or more external connectors for providing ESD protection thereto. The ESD protection circuitry further comprises an ESD connector coupled to the one or more external connector(s), arranged to couple supplementary ESD protection to the one or more external connector(s).
摘要:
A driving circuit for generating a required firing current for a safety device comprising an arrangement of a first transistor (M2) connected in series with a second transistor (M3); and a power control transistor (M1) connected in series with the first transistor; characterised in that the first and second transistors operate in fully switched on mode (Rds(on)) and the required firing current (I(squib)) is generated by means of varying the voltage (Vc) across the gate source of power control transistor and the first and second transistors in a predetermined manner.
摘要:
A buffer apparatus for a communications bus comprises a driver circuit having an output. An amplifier circuit having an input is coupled to the output of the driver circuit. The driver circuit is arranged to generate, when in use, a drive signal having a waveform that comprises a step therein so as to substantially suppress generation by the amplifier circuit of a portion of an oscillation of an output signal.
摘要:
A differential communication bus comprising a master module and a plurality of slave modules connected to at least first and second conductors whereby to communicate between the master and slave modules. The master module comprises a driver for applying first and second voltages respectively to the first and second conductors and for sourcing and sinking currents in the first and second conductors. The driver controls a difference between the first and second voltages and a common mode value of the first and second voltages. The driver includes first sourcing and sinking current limiters and second sourcing and sinking current limiters for limiting the currents in the first and second conductors. The master module is selectively responsive to a fault condition triggering simultaneous activation of the first and second sourcing current limiters or of the first and second sinking current limiters to disable the driver.
摘要:
An apparatus for an integrated circuit comprising a thermal sensor (41-44), an A-D converter (58) coupled to the thermal sensor, wherein the thermal sensor provides an input to the A-D converter, and the A-D converter converts the input to a digital value representative of the thermal environment of the thermal sensor. The integrated circuit collects a data value at a location on an integrated circuit wherein the data value has a predetermined functional relationship to the temperature at the location. The integrated circuit converts the data value to a value representative of the thermal environment of the location on the integrated circuit.
摘要:
Method and apparatus for communicating on an electrical bus by generating a master logical signal on the electrical bus in the form of a pulse-width modulation signal. Generating a slave logical signal on the electrical bus in the form of a current signal. Reading the slave logical signal by sampling the magnitude of the current signal on the electrical bus, wherein magnitude of the current on the electrical bus is sampled at a point in the bit time when the voltage on the electrical bus has remained constant for a period longer than the shortest time that the voltage remains at any level during the bit time.
摘要:
A differential communication bus comprising a master module and a plurality of slave modules connected to at least first and second conductors whereby to communicate between the master and slave modules. The master module comprises a driver for applying first and second voltages respectively to the first and second conductors and for sourcing and sinking currents in the first and second conductors. The driver controls a difference between the first and second voltages and a common mode value of the first and second voltages. The driver includes first sourcing and sinking current limiters and second sourcing and sinking current limiters for limiting the currents in the first and second conductors. The master module is selectively responsive to a fault condition triggering simultaneous activation of the first and second sourcing current limiters or of the first and second sinking current limiters to disable the driver.