发明授权
US5469382A Device for detecting the contents of cells within a memory, especially
an EPROM memory, method implemented with this device, and memory
provided with this device
失效
用于检测存储器内的单元的内容的装置，特别是用该设备实现的EPROM存储器，方法以及与该设备一起提供的存储器
- 专利标题： Device for detecting the contents of cells within a memory, especially an EPROM memory, method implemented with this device, and memory provided with this device
- 专利标题（中）： 用于检测存储器内的单元的内容的装置，特别是用该设备实现的EPROM存储器，方法以及与该设备一起提供的存储器
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申请号： US75524申请日： 1993-06-11
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公开(公告)号： US5469382A公开(公告)日： 1995-11-21
- 发明人: Emilio Yero
- 申请人： Emilio Yero
- 申请人地址： FRX Gentilly
- 专利权人： SGS-Thomson Microelectronics S.A.
- 当前专利权人： SGS-Thomson Microelectronics S.A.
- 当前专利权人地址： FRX Gentilly
- 优先权： FRX9112540 19911011
- 主分类号： G11C16/28
- IPC分类号： G11C16/28 ; G11C7/00
摘要：
A device is provided for detecting the content of cells of a memory, and for minimizing the read access time of a high-capacity EPROM memory in which cells are organized as a set of bit rows. A comparator including a differential amplifier compares a reference current from a reference column with a read current invoked in a cell of a bit row. The reference current and a read current flow through a resistive reference element and a resistive read element respectively. These resistive elements are connected, at one end, to a supply voltage source and, at the other end, to the non-inverting input and the inverting input respectively of the differential amplifier. The differential amplifier delivers as output a detection signal. In a preloading period the output of the differential amplifier is connected to its inverting input.
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