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US 8,555,098 B2Granted
Semiconductor circuit with load balance circuit
AssigneeAdvantest Corporation
InventorsTasuku Fujibe, Yoshihito Nagata, Masakatsu Suda
Life of this patent
Estimating the term…
Abstract
A circuit block operates while receiving a clock from an external circuit. A load balance circuit is connected to a shared power supply terminal together with the circuit block, and provides predetermined power consumption. A clock detection unit detects input of the clock from an external circuit. When the clock detection unit detects stopping of input of the clock, the load balance circuit is switched to the active state.
Claims21
A semiconductor integrated circuit comprising:
- a circuit block configured to operate while receiving a digital signal from an external circuit;
- a load balance circuit connected to a shared power supply terminal together with the circuit block, and configured to provide predetermined power consumption in an active state;
- and
- a detection unit configured to detect whether the digital signal is input to the circuit block from the external circuit or not, and to control a state of the load balance circuit according to a result of detection,
- wherein, when the detection unit detects stopping of input of the digital signal, the load balance circuit is switched to the active state.
2 more elements
A test apparatus comprising:
- a power supply circuit configured to generate a power supply voltage;
- a multi-strobe generating unit configured to generate a multi-strobe signal including a plurality of pulses having edges at different timings;
- a circuit block configured to receive the multi-strobe signal, and to perform predetermined signal processing;
- a load balance circuit configured to provide predetermined power consumption in an active state;
- and
- a multi-strobe detection unit configured to receive the multi-strobe signal, and to detect whether or not the multi-strobe signal is being generated by the multi-strobe generating unit,
- wherein at least the circuit block and the load balance circuit each operate while receiving the shared power supply voltage,
- and wherein, when the multi-strobe detection unit detects stopping of generation of the multi-strobe signal, the load balance circuit is set to an active state.
5 more elements
Dependencies are inferred from the claim text.