Patent ID: 11867751
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 4:
5. A semiconductor device comprising:
a test circuit configured to perform a test operation on the semiconductor device; and
test pads connected to the test circuit, the test pads being configured to receive test operation signals provided by an external test device,
wherein the test circuit is further configured to:
detect a toggling of at least one of the test operation signals based on detecting a toggling of a second test operation signal in an interval in which a first test operation signal among the test operation signals is set at a certain logic level, the first test operation signal being different from the second test operation signal;
generate an internal test enable signal in response to the detected toggling of the at least one of the test operation signals; and
perform the test operation on the semiconductor device based on the internal test enable signal.