白丝美女被狂躁免费视频网站,500av导航大全精品,yw.193.cnc爆乳尤物未满,97se亚洲综合色区,аⅴ天堂中文在线网官网

Apparatus and methods for controlling refresh operations

專利號(hào)
US10867660B2
公開日期
2020-12-15
申請(qǐng)人
MICRON TECHNOLOGY, INC.（US ID Boise）
發(fā)明人
Hiroshi Akamatsu
IPC分類
G11C7/00; G11C11/408; G11C5/04; G11C5/06; G11C29/18; G11C29/00; G11C8/12
技術(shù)領(lǐng)域
word,row,address,rwlj,radd2,redundant,refresh,circuit,signal,target
地域： ID ID Boise

摘要

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.

說明書

The active signal iACT is activated when the internal command/address signal iC/A is indicating an active command. When the active signal iACT is activated, a row address contained in the internal command/address signal iC/A is latched by the address latch circuit 26. The row address RADD1 latched by the address latch circuit 26 is supplied to a row control circuit 28. Based on the row address RADD1, the row control circuit 28 selectively activates any of a plurality of normal word lines WL and a plurality of redundant word lines RWS contained in the memory cell array 20. FIG. 1 shows a single normal word line WL and a single redundant word line RWL in the memory cell array 20. However, in practice, many normal word lines WL and many redundant word lines RWL are provided.

權(quán)利要求

1
微信群二維碼
意見反饋