Semiconductor memory device which compensates for delay time variations of multi-bit data
First Claim
1. A memory device, comprising:
- a first data storage unit adapted to store first to nth data bits input into the first data storage unit in response to a latch clock signal; and
a second data storage adapted to store the first to nth data bits output from the first data storage unit in response to a reference clock signal, wherein the latch clock signal is obtained by delaying the reference clock signal.
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Accused Products
Abstract
A memory device compensates for delay time variations among multi-bit data. The device includes a first stage and a second stage of data storage units. The first stage of data storage units store first to nth data bits in response to a latch clock signal. The second stage of data storage units store the first to nth data contents output from the first stage of data storage units in response to a reference clock signal. The latch clock signal is obtained by delaying the reference clock signal. The latch clock signal includes first to nth sub latch signals. The sub latch signals are generated at different times according to propagation delay time periods of the corresponding first to nth data contents.
17 Citations
22 Claims
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1. A memory device, comprising:
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a first data storage unit adapted to store first to nth data bits input into the first data storage unit in response to a latch clock signal; and
a second data storage adapted to store the first to nth data bits output from the first data storage unit in response to a reference clock signal, wherein the latch clock signal is obtained by delaying the reference clock signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A memory device having a plurality of data paths for receiving data, wherein the data paths comprise:
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a plurality of data storage units adapted to store data, including a first stage of data storage units adapted to store the data in response to a latch clock signal, and at least a second stage of data storage units adapted to store the data output from the first stage of data storage units in response to a reference clock signal; and
delay units adapted to delay the reference clock signal and output the latch clock signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A memory device having a plurality of data paths for receiving data, wherein the data paths comprise a plurality of data storage units adapted to store data, including;
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a first stage of data storage units adapted to asynchronously store the data; and
at least one second stage of data storage units adapted to synchronously store the data output from the first stage of data storage units. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification