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    • 4. 发明授权
    • Hierarchical six-transistor SRAM
    • 分层六晶体管SRAM
    • US07471546B2
    • 2008-12-30
    • US11620297
    • 2007-01-05
    • Richard E. MatickStanley E. Schuster
    • Richard E. MatickStanley E. Schuster
    • G11C11/00
    • G11C11/412G11C11/413
    • An embodiment of the present invention is an SRAM memory array comprising memory cells with each cell containing six devices, the storage nodes which store the true and complement of the data are constructed from a four device, cross coupled flip-flop cell, wherein one internal storage node of this cell is connected through an access pass gate to one local bit line (LBL), the second internal storage node connected in a like manner to a second LBL, each LBL connected to a limited number, e.g. 8 to 32 of other similar storage cells, the two LBLs each connected to the gate of a separate read head nFET for discharging to ground one of two previously precharged global read lines so as to pass the inverse of the signal on the LBL and thus on the read head gate to a global read/write bit line.
    • 本发明的实施例是一种SRAM存储器阵列,其包括具有每个单元包含六个器件的存储器单元,存储数据的真实和补码的存储节点由四个器件交叉耦合的触发器单元构成,其中一个内部 该单元的存储节点通过访问传递门连接到一个本地位线(LBL),第二内部存储节点以类似的方式连接到第二LBL,每个LBL连接到有限数量,例如 8到32个其他类似的存储单元,两个LBL各自连接到单独的读头nFET的栅极,用于将两个先前预充电的全局读取线之一放电到地之上,以便通过LBL上的信号的反相,从而导通 读头到全局读/写位线。
    • 7. 发明申请
    • SYSTEMS AND METHODS FOR A DRAM CONCURRENT REFRESH ENGINE WITH PROCESSOR INTERFACE
    • 具有处理器接口的DRAM同时燃烧发动机的系统和方法
    • US20080270683A1
    • 2008-10-30
    • US11739899
    • 2007-04-25
    • John E. BarthRichard E. MatickStanley E. Schuster
    • John E. BarthRichard E. MatickStanley E. Schuster
    • G06F13/28
    • G06F13/28
    • Systems and methods for a DRAM concurrent refresh engine with processor interface. In exemplary embodiments, memory cells requiring periodic refresh at least once each for a specified refresh interval and words of an array organized banks in which the banks are selected for access by a bank-enable signal, each bank having a word decoder accepting one of two refresh word addresses, one refresh word address for a normal access, and the other for a refresh access, one of the word addresses selected by two separate enable signals, provided by on-macro refresh logic, which includes instructions to select one bank for refresh when no normal access occurs and select one bank for refresh concurrently with a normal access having no bank conflicts, the refresh logic maintaining the refresh status, timing of the refresh interval, and insuring all memory cells are refreshed within the refresh interval.
    • 具有处理器接口的DRAM并发刷新引擎的系统和方法。 在示例性实施例中,需要对于指定的刷新间隔至少每次刷新一次的存储器单元以及阵列组合的存储体的组,其中通过存储体使能信号选择存储体以进行存取,每个存储体具有接受两个 刷新字地址,用于正常访问的一个刷新字地址,另一个用于刷新访问,由宏宏刷新逻辑提供的由两个单独使能信号选择的字地址之一,其包括选择一个银行刷新的指令 当没有正常访问时,并且在没有存在冲突的正常访问的情况下同时选择一个存储体进行刷新,保持刷新状态的刷新逻辑,刷新间隔的定时以及保证所有存储单元在刷新间隔内被刷新。