发明名称 |
Dynamic random access memory device having sense amplifier arrays selectively activated when associated memory cell sub-arrays are accessed |
摘要 |
A dynamic random access memory device selects a row of memory cells from a plurality of memory cell sub-arrays with main word lines and sub-word lines for a data access, and data bits read out from the row of memory cells are amplified by a sense amplifier circuit array, wherein a row block address decoder and a column block address decoder supply a first enable signal and a second enable signal to a row of memory cell sub-arrays and a column of memory cell sub-arrays so that only one of the sense amplifier circuit arrays is powered for the amplification, thereby decreasing peak current consumed by the sense amplifier circuit arrays.
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申请公布号 |
US5406526(A) |
申请公布日期 |
1995.04.11 |
申请号 |
US19930129363 |
申请日期 |
1993.09.30 |
申请人 |
NEC CORPORATION |
发明人 |
SUGIBAYASHI, TADAHIKO;FUJITA, MAMORU;NARITAKE, ISAO |
分类号 |
G11C11/408;G11C11/4091;(IPC1-7):G11C8/00 |
主分类号 |
G11C11/408 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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