Patent ID: 11972833
Assignee: SK HYNIX INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A semiconductor device, comprising:
at least one first resistor group coupled to a first pad and suitable for providing a first impedance according to a first control code during a first operation;
at least one second resistor group coupled to the first pad and suitable for providing a second impedance according to a second control code during any of the first operation and a second operation;
a stress replica circuit suitable for replicating a stress applied to the second resistor group during the second operation and for generating a detection code during a second calibration mode; and
a calibration circuit suitable for adjusting the first control code to match an impedance of a resistor part coupled to a second pad to an external resistor during a first calibration mode and for generating is the second control code by adjusting the first control code according to the detection code during the second calibration mode.