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JPH0562467A Expired / Lapsed JP ⏱️ 0.0 years remaining

Sense amplifier driving circuit

Assignee: Hitachi Ltd
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Filing: 1991-09-05
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Granted: —
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Expires: 2011-09-05
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】データ線電圧リミッタとオーバードライブ形セ ンスアンプを組合せて用いるDRAMにおいて、DRA Mのセンスアンプによるデータ線増幅時間がデータ線の 寄生容量、抵抗に依存しにくいようにし、再書込みを速 め、サイクル時間とアクセス時間の高速化を図る。 【構成】ダミーのデータ線の充放電状況を検出して、そ れにあわせてセンスアンプのオーバードライブ時間を制 御する。 【効果】データ線増幅時間が製造ばらつきに影響されに くく、結果としてDRAMのサイクル時間、アクセス時 間を高速化できる。 (57) [Abstract] [Purpose] DRA in a DRAM using a combination of a data line voltage limiter and an overdrive type sense amplifier. The data line amplification time by the M sense amplifier is made less dependent on the parasitic capacitance and resistance of the data line, rewriting is accelerated, and cycle time and access time are shortened. [Structure] The charge / discharge status of a dummy data line is detected, and the overdrive time of the sense amplifier is controlled accordingly. [Effect] The data line amplification time is not easily affected by manufacturing variations, and as a result, the DRAM cycle time and access time can be shortened.

Inventors

  • 👤 Riichi Tachibana
  • 👤 利一 立花
  • 👤 Goro Kitsukawa
  • 👤 五郎 橘川
  • 👤 Yasushi Kawase
  • 👤 靖 川瀬
  • 👤 Takesada Akiba
  • 👤 武定 秋葉

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-08 15:07
CPC Classifications
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