JP6464232B2 - 不揮発性メモリ用駆動回路 - Google Patents
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Description
Claims (14)
- 不揮発性セルアレイに接続される駆動回路であって、
ソース端子及びボディ端子が第1供給電圧に接続され、ドレイン端子はノードa1に接続され、かつ、ゲート端子はノードb1又はノードb2に接続される第1トランジスタ、
ソース端子及びボディ端子が前記第1供給電圧に接続され、ドレイン端子は前記ノードb1に接続され、かつ、ゲート端子は前記ノードa1又はノードa2に接続される第2トランジスタ、
ソース端子が第2供給電圧に接続され、ボディ端子は前記第1供給電圧又は前記ノードa1に接続され、かつ、ドレイン端子及びゲート端子は前記ノードa1に接続される第3トランジスタ、
ソース端子が前記第2供給電圧に接続され、ボディ端子は前記第1供給電圧又は前記ノードb1に接続され、かつ、ドレイン端子及びゲート端子は前記ノードb1に接続される第4トランジスタ、
ソース端子及びボディ端子が前記ノードa1に接続され、ゲート端子は前記第2供給電圧に接続され、かつ、ドレイン端子は前記ノードa2に接続される第5トランジスタ、
ソース端子及びボディ端子が前記ノードb1に接続され、ゲート端子は前記第2供給電圧に接続され、かつ、ドレイン端子は、前記ノードb2に接続されて、前記ノードb2から駆動信号が出力される第6トランジスタ、
ソース端子及びボディ端子が前記ノードa2に接続され、ゲート端子は第3供給電圧に接続され、かつ、ドレイン端子はノードa3に接続される第7トランジスタ、
ソース端子及びボディ端子が前記ノードb2に接続され、ゲート端子は前記第3供給電圧に接続され、かつ、ドレイン端子はノードb3に接続される第8トランジスタ、
ドレイン端子は前記ノードa3に接続され、ゲート端子は第4供給電圧に接続され、ソース端子はノードa4に接続され、ボディ端子は第5供給電圧に接続され、前記第4供給電圧は前記第3供給電圧に等しくない第9トランジスタ、
ドレイン端子が前記ノードb3に接続され、ゲート端子は前記第4供給電圧に接続され、ソース端子はノードb4に接続され、かつ、ボディ端子は前記第5供給電圧に接続される第10トランジスタ、
ドレイン端子が前記ノードa4に接続され、ゲート端子は入力信号を受信し、かつ、ソース端子及びボディ端子は前記第5供給電圧に接続される第11トランジスタ、
ドレイン端子が前記ノードb4に接続され、ゲート端子は反転入力信号を受信し、ソース端子は前記第6供給電圧に接続され、かつ、ボディ端子は前記第5供給電圧に接続される第12トランジスタ、
を有する第1ドライバ、
前記ノードa2に接続される第1バイアス回路、並びに、
前記ノードb2に接続される第2バイアス回路、を有する駆動回路。 - 請求項1に記載の駆動回路であって、前記第1バイアス回路が、
ゲート端子が第1特定電圧に接続され、かつ、ドレイン端子は前記ノードa2に接続される第13トランジスタ、及び、
ソース端子が前記第13トランジスタのソース端子に接続され、ゲート端子は前記反転入力信号を受信し、かつ、ドレイン端子は第2特定電圧に接続される第14トランジスタ、を有する、駆動回路。 - 請求項2に記載の駆動回路であって、前記第1バイアス回路が、
ゲート端子が第3特定電圧に接続され、かつ、ドレイン端子は前記ノードb2に接続される第15トランジスタ、及び、
ソース端子が前記第15トランジスタのソース端子に接続され、ゲート端子は前記入力信号を受信し、かつ、ドレイン端子は第4特定電圧に接続される第16トランジスタ、を有する、駆動回路。 - 請求項3に記載の駆動回路であって、ボディ端子が前記第5供給電圧に接続され、前記第14トランジスタのボディ端子及びドレイン端子は互いに接続され、前記第15トランジスタのボディ端子は前記第5供給電圧を受け、かつ、前記第16トランジスタのボディ端子及びドレイン端子は互いに接続される、駆動回路。
- 請求項3に記載の駆動回路であって、前記第2特定電圧が前記第1特定電圧以下で、かつ、前記第4特定電圧が前記第3特定電圧以下である、駆動回路。
- 請求項1に記載の駆動回路であって、前記第1供給電圧が前記第2供給電圧以上で、前記第2供給電圧は前記第3供給電圧以上で、かつ、前記第3供給電圧は前記第4供給電圧以上である、駆動回路。
- 請求項1に記載の駆動回路であって、
前記ノードb2と第1出力端子との間で接続される第1スイッチ回路、及び、
前記第1出力端子に接続されて、前記第1出力端子から第1出力信号が出力される第2ドライバ、をさらに有する駆動回路。 - 請求項7に記載の駆動回路であって、
前記第1スイッチ回路が、
ソース端子及びボディ端子が前記ノードb2に接続され、ゲート端子は第1モード信号を受信し、かつ、ドレイン端子はノードx1に接続される第17トランジスタ、
ソース端子及びボディ端子が前記ノードx1に接続され、ゲート端子は前記第2供給電圧に接続され、かつ、ドレイン端子はノードx2に接続される第18トランジスタ、
ボディ端子が前記ノードx2に接続され、ゲート端子は前記第3供給電圧に接続され、かつ、ドレイン端子は前記第1出力端子に接続される第19トランジスタ、
前記ノードx1に接続される第3バイアス回路、及び、
前記ノードx2に接続される第4バイアス回路、を有する、駆動回路。 - 請求項8に記載の駆動回路であって、
前記第2ドライバが、
ドレイン端子が前記第1出力端子に接続され、ゲート端子は前記第4供給電圧を受け、かつ、ボディ端子は前記第5供給電圧を受ける第20トランジスタ、
ドレイン端子が前記第20トランジスタのソース端子に接続され、ゲート端子は前記反転入力信号を受信し、ボディ端子は前記第5供給電圧を受け、かつ、ソース端子は前記第6供給電圧Vに接続される第21トランジスタ、及び、
ドレイン端子が前記第20トランジスタのソース端子に接続され、ゲート端子は第2モード信号を受信し、ボディ端子は前記第5供給電圧を受け、かつ、ソース端子は前記第6供給電圧Vに接続される第22トランジスタ、を有する、駆動回路。 - 請求項8に記載の駆動回路であって、
前記第3バイアス回路は、ソース端子が前記第2供給電圧に接続され、ゲート端子及びドレイン端子が前記ノードx1に接続され、かつ、ボディ端子が前記ノードx1に接続される第23トランジスタを有する、駆動回路。 - 請求項10に記載の駆動回路であって、
前記第4バイアス回路は、
前記入力信号及び反転モード信号の和が出力されるORゲート、
ドレイン端子が前記ノードx2に接続され、かつ、ゲート端子は第5特定電圧に接続される第24トランジスタ、並びに、
ソース端子が前記第24トランジスタのソース端子に接続され、ゲート端子は前記ORゲートの出力端子に接続され、かつ、ドレイン端子は第6特定電圧を受ける第25トランジスタ、を有する、駆動回路。 - 請求項7に記載の駆動回路であって、
前記ノードb2と第2出力端子との間に接続される第2スイッチ回路、及び、
前記第2出力端子に接続されて前記第2出力端子から第2出力信号が出力される第3ドライバ、をさらに有する駆動回路。 - 請求項12に記載の駆動回路であって、
第2スイッチ回路が、
ソース端子及びボディ端子が前記ノードb2に接続され、ゲート端子は第7特定電圧を受け、かつ、ドレイン端子は前記第2出力端子に接続される第26トランジスタ、を有する、駆動回路。 - 請求項12に記載の駆動回路であって、
前記第3ドライバが、
ドレイン端子が前記第2出力端子に接続され、ゲート端子は前記第4供給電圧を受け、かつ、ボディ端子は前記第5供給電圧を受ける第27トランジスタ、及び、
ドレイン端子が前記第27トランジスタのソース端子に接続され、ゲート端子は前記反転入力信号を受信し、ボディ端子は前記第5供給電圧を受け、かつ、ソース端子は前記第6供給電圧に接続される第28トランジスタ、を有する、駆動回路。
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