Semiconductor device
AssigneeSK hynix Inc.
InventorsChang Hyun Kim, Seok Bo Shim
Life of this patent
Estimating the term…
Abstract
A semiconductor device may include: a first receiver configured to receive a chip select signal from a receiving node to which a termination resistor is coupled and configured to generate a first internal chip select signal; a command pulse generation circuit configured to generate a command pulse for entering into a self-refresh operation based on an internal command address and the first internal chip select signal; and an operation control circuit configured to, when the semiconductor device enters the self-refresh operation based on the command pulse, generate a resistor value change signal that adjusts the value of the termination resistor.
Claims18
A semiconductor device comprising:
- a first receiver configured to receive a chip select signal from a receiving node to which a termination resistor is coupled and configured to generate a first internal chip select signal;
- a command pulse generation circuit configured to generate a command pulse for entering into a self-refresh operation based on an internal command address and the first internal chip select signal;
- and
- an operation control circuit configured to, when the semiconductor device enters the self-refresh operation based on the command pulse, generate a resistor value change signal that adjusts a value of the termination resistor,
- wherein, when the level of the chip select signal transitions from a preset level to a first target level, such that the semiconductor device enters the self-refresh operation, the first receiver is configured to set a logic level of the first internal chip select signal to a preset logic level.
A semiconductor device comprising:
- an operation control circuit configured to generate a resistor value change signal when a level of a chip select signal transitions so that the semiconductor device enters a self-refresh operation;
- and
- an ODT (On-Die Termination) circuit comprising a termination resistor coupled to a receiving node that receives the chip select signal and configured to adjust a value of the termination resistor based on the resistor value change signal,
- wherein, when the level of the chip select signal transitions from a preset level to a first target level such that the semiconductor device enters the self-refresh operation, the operation control circuit is configured to activate the resistor value change signal.
Dependencies are inferred from the claim text.