Initialization circuit and bank active circuit using the same
AssigneeHynix Semiconductor Inc.
InventorJong Won Lee
Life of this patent
Estimating the term…
Abstract
An initialization circuit comprises a section signal generator generating a section signal, of which a prescribed section is enabled in response to a power-up signal, a first oscillator generating a first period signal in response to the section signal, a first period multiplier generating a first multiplied signal by multiplying a period of the first period signal, and a signal selector transferring the first multiplied signal or a second multiplied signal selectively as a self-refresh enable signal in response to the section signal.
Claims25
An initialization circuit, comprising:
- a section signal generator generating a section signal, a prescribed section of the section signal being enabled in response to a power-up signal;
- a first oscillator generating a first period signal in response to the section signal;
- a first period multiplier generating a first multiplied signal by multiplying a period of the first period signal;
- and
- a signal selector transferring a selected one of the first multiplied signal and a second multiplied signal as a self-refresh enable signal in response to the section signal.
A bank active circuit, comprising:
- an initializing unit generating a self-refresh enable signal which is enabled at least once during a prescribed section after a power-up section is terminated;
- a bank active signal generating unit receiving the self-refresh enable signal, an active signal, a precharge signal and an auto-refresh signal and generate a bank active signal;
- and
- a delay unit delaying the bank active signal by a prescribed amount of time to generate a delay signal for disabling the bank active signal.
A bank active circuit, comprising:
- an initializing unit generating a self-refresh enable signal which is enabled at least once during a prescribed section after a power-up section is terminated, in response to a reset signal;
- a bank active signal generating unit receiving the self-refresh enable signal an active signal, a precharge signal and an auto-refresh signal and generate a bank active signal;
- and
- a delay unit delaying the bank active signal by a prescribed amount of time to generate a delay signal for disabling the bank active signal.
Dependencies are inferred from the claim text.