Apparatuses and methods for controlling refresh operations
First Claim
1. An apparatus comprising:
- a first word line and a second word line being contiguous to the first word line;
a control circuit comprises;
a first defective address storing circuit configured to store first enable information along with first defective address information, the first enable infoiniation indicates whether the second word line is functional or the second word line is not functional, anda first detection circuit configured to provide a first signal based, at least in part, on the first enable information when the first word line is accessed, the first signal indicates whether the second word line is functional or the second word line is not functional; and
wherein the control circuit is configured to activate the second word line for a target-row refresh operation when the first signal indicates that the second word line is functional and not to activate the second word line and instead activate another word line for the target-row refresh operation when the first signal indicates that the second word line is not functional.
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Accused Products
Abstract
An apparatus includes a first word line, a second word line and a control. The second word line is contiguous to the first word line. The control circuit includes a first defective address storing circuit and a first detection circuit. The first defective address storing circuit stores first enable information along with first defective address. The first enable information indicates whether or not the second word line is functional. The first detection circuit provides a first signal when the first word line is accessed. The first signal indicates whether or not the second word line is functional. The control circuit activates the second word line when the first signal indicates that the second word line is functional and does not activate the second word line when the first signal indicates that the second word line is not functional.
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Citations
9 Claims
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1. An apparatus comprising:
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a first word line and a second word line being contiguous to the first word line; a control circuit comprises; a first defective address storing circuit configured to store first enable information along with first defective address information, the first enable infoiniation indicates whether the second word line is functional or the second word line is not functional, and a first detection circuit configured to provide a first signal based, at least in part, on the first enable information when the first word line is accessed, the first signal indicates whether the second word line is functional or the second word line is not functional; and wherein the control circuit is configured to activate the second word line for a target-row refresh operation when the first signal indicates that the second word line is functional and not to activate the second word line and instead activate another word line for the target-row refresh operation when the first signal indicates that the second word line is not functional. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification