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US 2009/0153186 A1Published application
On-die-termination control circuit and method
AssigneeHynix Semiconductor Inc.
InventorsSeung-Min Oh, Ho-Youb Cho
Life of this patent
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Abstract
On-die-termination control circuit includes a clock generator configured to generate shift clocks in response to an on/off control signal; and a shift register configured to delay the on/off control signal in synchronization with the shift clocks to control on/off timing of an ODT operation.
Claims14
An on-die-termination control circuit, comprising:
- a clock generator configured to generate shift clocks in response to an on/off control signal;
- and
- a shift register configured to delay the on/off control signal in synchronization with the shift clocks to control on/off timing of an on-die-termination operation.
An on-die-termination control circuit, comprising:
- an on-die-termination buffer configured to buffer an on/off control signal received from an external controller;
- a clock generator configured to generate shift clocks in response to the on/off control signal received from the on-die-termination buffer;
- a setup/hold delay configured to delay the on/off control signal received from the on-die-termination buffer, by a predetermined delay time;
- a shift register configured to delay the on/off control signal received from the setup/hold delay, in synchronization with the shift clocks;
- and
- a controller configured to control an on-die-termination operation according to information about on/off timing of the on-die-termination operation and information about termination resistance which are included in the on/off control signal received from the shift register.
3 more elements
An on-die-termination control method, comprising:
- receiving an on/off control signal from an external controller;
- generating shift clocks in response to the on/off control signal;
- and
- delaying the on/off control signal in synchronization with the shift clocks to control on/off timing of an on-die-termination operation.
1 more element
Dependencies are inferred from the claim text.