发明公开
EP1181691A1 SCHREIB-LESEVERSTÄRKER FÜR EINE DRAM-SPEICHERZELLE SOWIE DRAM-SPEICHER 有权
写读放大器DRAM存储单元和DRAM内存

  • 专利标题: SCHREIB-LESEVERSTÄRKER FÜR EINE DRAM-SPEICHERZELLE SOWIE DRAM-SPEICHER
  • 专利标题(英): Read-write amplifier for a dram memory cell and dram memory
  • 专利标题(中): 写读放大器DRAM存储单元和DRAM内存
  • 申请号: EP01921181.2
    申请日: 2001-03-13
  • 公开(公告)号: EP1181691A1
    公开(公告)日: 2002-02-27
  • 发明人: FREY, Alexander
  • 申请人: Infineon Technologies AG
  • 申请人地址: St.-Martin-Strasse 53 81669 München DE
  • 专利权人: Infineon Technologies AG
  • 当前专利权人: Infineon Technologies AG
  • 当前专利权人地址: St.-Martin-Strasse 53 81669 München DE
  • 代理机构: Dokter, Eric-Michael
  • 优先权: DE10012106 20000313
  • 国际公布: WO0169605 20010920
  • 主分类号: G11C7/06
  • IPC分类号: G11C7/06 G11C11/4091
SCHREIB-LESEVERSTÄRKER FÜR EINE DRAM-SPEICHERZELLE SOWIE DRAM-SPEICHER
摘要:
A DRAM memory (10) is disclosed, comprising a number of DRAM memory cells (15), which each form one, or several memory cell fields (11). Each memory cell (15) is connected to a bitline (12), or a reference bitline (13). The individual bitlines (12, 13) are connected to a read-write amplifier (30). According to the invention, in order that the read-write amplifier (30) can achieve the desired performance with high speed and reliability of performance, with the lowest possible space requirement, a space-saving read amplifier arrangement is provided, whereby the read-write amplifier (30) comprises a first read-write amplifier element (4) and a second read-write amplifier element (50), separate from the first, with the individual amplifier components (41, 42, 43, 51, 54) distributed on both read-write amplifier elements (40, 50). Several bitline pairs (16) can thus be simultaneously evaluated in a single memory cell field (11) with an individual read-write amplifier.
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