JP4139374B2 - 半導体記憶装置 - Google Patents
半導体記憶装置 Download PDFInfo
- Publication number
- JP4139374B2 JP4139374B2 JP2004303255A JP2004303255A JP4139374B2 JP 4139374 B2 JP4139374 B2 JP 4139374B2 JP 2004303255 A JP2004303255 A JP 2004303255A JP 2004303255 A JP2004303255 A JP 2004303255A JP 4139374 B2 JP4139374 B2 JP 4139374B2
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- JP
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- Prior art keywords
- address
- signal
- circuit
- input
- synchronization
- Prior art date
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Description
11−1、11−2、11−3、11−4 入力バッファ
12−1、12−2、12−3、12−4、12−5 同期用バッファ
13 コマンドデコーダ
14 アドレス取り込み信号生成回路
15 アドレス入力回路
16 制御回路
17 内部回路
18 データ入出力バッファ
31 クロック同期回路
32 ラッチ回路
33 ラッチリセット回路
201、202、203、204 入力バッファ
205、206、207、208 同期用バッファ
209 コマンドデコーダ
210 アドレス入力回路
211 制御回路
Claims (2)
- 外部から供給されるバースト開始アドレスを取り込む為のバースト開始アドレス取り込みパルスを、クロック信号に同期して出力する第1の回路と、
該バースト開始アドレス取り込みパルスに続いて内部で発生される内部アドレスを取り込む為の内部発生アドレス取り込みパルスを、該クロック信号に同期して出力する第2の回路
を含み、
該第2の回路は、
該内部発生アドレス取り込みパルスを発生させる期間を示す期間信号を生成するバースト長制御回路と、
該期間信号を該クロック信号に同期させることで該内部発生アドレス取り込みパルスを生成する同期回路
を含み、
該バースト長制御回路は、
コマンド入力信号と、
該コマンド入力信号によって設定されるアクティブ状態を示す信号と、
バースト期間終了を示す信号と
に基づいて、前記期間信号を生成する組み合わせ論理回路であることを特徴とする半導体記憶装置。 - 前記第1の回路は、コマンド入力信号が所定の組み合わせに設定されたときにバースト開始を指示するバースト開始信号を生成する組み合わせ論理回路と、該バースト開始信号を前記クロック信号に同期させることで前記バースト開始アドレス取り込みパルスを生成する同期回路を含むことを特徴とする請求項1記載の半導体記憶装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004303255A JP4139374B2 (ja) | 1997-06-26 | 2004-10-18 | 半導体記憶装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17007097 | 1997-06-26 | ||
JP2004303255A JP4139374B2 (ja) | 1997-06-26 | 2004-10-18 | 半導体記憶装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP07795298A Division JP3723340B2 (ja) | 1997-06-26 | 1998-03-25 | 半導体記憶装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005071600A JP2005071600A (ja) | 2005-03-17 |
JP4139374B2 true JP4139374B2 (ja) | 2008-08-27 |
Family
ID=34424948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004303255A Expired - Fee Related JP4139374B2 (ja) | 1997-06-26 | 2004-10-18 | 半導体記憶装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4139374B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101688753B (zh) * | 2007-05-04 | 2013-08-14 | 乔治洛德方法研究和开发液化空气有限公司 | 通过低温蒸馏分离氢、甲烷和一氧化碳的混合物的方法和装置 |
-
2004
- 2004-10-18 JP JP2004303255A patent/JP4139374B2/ja not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101688753B (zh) * | 2007-05-04 | 2013-08-14 | 乔治洛德方法研究和开发液化空气有限公司 | 通过低温蒸馏分离氢、甲烷和一氧化碳的混合物的方法和装置 |
Also Published As
Publication number | Publication date |
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JP2005071600A (ja) | 2005-03-17 |
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