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    • 7. 发明授权
    • Circuit and method for controlling a standby voltage level of a memory
    • 用于控制存储器的待机电压电平的电路和方法
    • US07894291B2
    • 2011-02-22
    • US11162847
    • 2005-09-26
    • George M. BracerasJohn A. FifieldHarold Pilo
    • George M. BracerasJohn A. FifieldHarold Pilo
    • G11C5/14
    • G11C11/417G11C5/147
    • A memory is provided which can be operated at an active rate of power consumption in an active operational mode and at a predetermined reduced rate of power consumption in a standby operational mode. The memory includes a current generating circuit which is operable to supply a predetermined magnitude of current to a sample power supply input terminal of a sample memory cell representative of memory cells of the memory, the predetermined magnitude of current corresponding to the predetermined reduced rate of power consumption. A voltage follower circuit is operable to output a standby voltage level equal to a voltage level at the sample power supply input terminal when the predetermined magnitude of current is supplied thereto. A memory cell array of the memory is operable to store data. In the standby operational mode, a switching circuit is operable to supply power at the standby voltage level to a power supply input terminal of the memory cell array. This permits data to remain stored in the memory during the standby mode. During an active operational mode, the switching circuit is operable to connect the power supply input terminal at the power supply to supply power at the active voltage level to the memory cell array. During the active operational mode, data can be stored into the memory cell array and retrieved from the memory cell array.
    • 提供一种存储器,其可以在主动操作模式中以在备用操作模式中以预定的降低的功率消耗速率以有效的功率消耗速率操作。 存储器包括电流产生电路,其可操作以向代表存储器的存储器单元的采样存储单元的采样电源输入端提供预定大小的电流,与预定的降低的功率比相对应的预定电流值 消费。 电压跟随器电路可操作以当提供预定电流大小时输出等于采样电源输入端的电压电平的备用电压电平。 存储器的存储单元阵列可操作以存储数据。 在待机操作模式中,切换电路可操作以将备用电压电平的电力提供给存储单元阵列的电源输入端。 这在待机模式期间允许数据保存在存储器中。 在有效操作模式期间,开关电路可操作地连接电源处的电源输入端,以将有源电压电平的电力提供给存储单元阵列。 在主动操作模式期间,可将数据存储到存储单元阵列中并从存储单元阵列检索。
    • 10. 发明授权
    • Method and apparatus for improving cycle time in a quad data rate SRAM device
    • 用于改善四倍数据速率SRAM器件中的周期时间的方法和装置
    • US06967861B2
    • 2005-11-22
    • US10708379
    • 2004-02-27
    • George M. BracerasHarold Pilo
    • George M. BracerasHarold Pilo
    • G11C8/00G11C11/00G11C11/413
    • G11C11/413
    • A method for implementing a self-timed, read to write operation in a memory storage device. In an exemplary embodiment, the method includes capturing a read address during a first half of a current clock cycle, and commencing a read operation so as to read data corresponding to the captured read address onto a pair of bit lines. A write operation is commenced for the current clock cycle so as to cause write data to appear on the pair of bit lines as soon as the read data from the captured read address is amplified by a sense amplifier, wherein the write operation uses a previous write address captured during a preceding clock cycle. A current write address is captured during a second half of the current clock cycle, said current write address used for a write operation implemented during a subsequent clock cycle, wherein the write operation for the current clock cycle is timed independent of the current write address captured during said second half of the current clock cycle.
    • 一种用于在存储器存储设备中实现自定时的读写操作的方法。 在一个示例性实施例中,该方法包括在当前时钟周期的前半部分期间捕获读取地址,并开始读取操作,以便将对应于所捕获的读取地址的数据读取到一对位线上。 一旦当前时钟周期开始写入操作,以便一旦来自捕获的读取地址的读取数据被读出放大器放大,就会使写入数据出现在该对位线上,其中写入操作使用先前的写入 在前一个时钟周期捕获的地址。 在当前时钟周期的后半段期间捕获当前写入地址,所述当前写入地址用于在随后的时钟周期期间实现的写入操作,其中当前时钟周期的写入操作被独立于捕获的当前写入地址 在当前时钟周期的后半段。