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    • 4. 发明授权
    • Virtual ground read only memory circuit
    • 虚拟接地只读存储器电路
    • US5623438A
    • 1997-04-22
    • US697482
    • 1996-08-26
    • Elmer H. GuritzTsiu C. Chan
    • Elmer H. GuritzTsiu C. Chan
    • G11C17/12H01L27/112G11C7/00H01L21/8246
    • G11C17/12G11C17/126H01L27/112
    • A semiconductor read only memory device includes memory cells arranged in a matrix of rows and columns; word lines crossing the matrix, wherein one word line is connected to each row of memory cells; and bit lines interdigitated with column lines and positioned such that each column of memory cells is between a bit line and a column line. The matrix is subdivided into cells, where each cell has four memory cells arranged symmetrically about a bit line in two rows and two columns. All four of the cells are connected to the bit line at a common electrical node, wherein selected cells are connected to a column line. The memory device also includes a row select driver for selecting memory cells in a single row; a column select driver for selecting a single column line; and circuitry for selecting one of the bit lines adjacent to a column line.
    • 半导体只读存储器件包括以行和列为矩阵排列的存储器单元; 跨越矩阵的字线,其中一个字线连接到每行存储器单元; 并且位线与列线相互指向并且定位成使得存储器单元的每列位于位线和列线之间。 矩阵被细分为单元,其中每个单元具有四个存储单元,其对称地排列成两列和两列的位线。 所有四个单元在公共电节点处连接到位线,其中所选择的单元连接到列线。 存储装置还包括用于选择单行中的存储单元的行选择驱动器; 用于选择单列行的列选择驱动程序; 以及用于选择与列线相邻的位线之一的电路。
    • 7. 发明授权
    • Virtual ground read only memory circuit
    • 虚拟接地只读存储器电路
    • US5377153A
    • 1994-12-27
    • US982988
    • 1992-11-30
    • Elmer H. GuritzTsiu C. Chan
    • Elmer H. GuritzTsiu C. Chan
    • G11C17/12H01L27/112G11C7/00G11C11/00
    • G11C17/12G11C17/126H01L27/112
    • A semiconductor read only memory device includes memory cells arranged in a matrix of rows and columns; word lines crossing the matrix, wherein one word line is connected to each row of memory cells; and bit lines interdigitated with column lines and positioned such that each column of memory cells is between a bit line and a column line. The matrix is subdivided into cells, where each cell has four memory cells arranged symmetrically about a bit line in two rows and two columns. All four of the cells are connected to the bit line at a common electrical node, wherein selected cells are connected to a column line. The memory device also includes a row select driver for selecting memory cells in a single row; a column select driver for selecting a single column line; and circuitry for selecting one of the bit lines adjacent to a column line.
    • 半导体只读存储器件包括以行和列为矩阵排列的存储器单元; 跨越矩阵的字线,其中一个字线连接到每行存储器单元; 并且位线与列线相互指向并且定位成使得存储器单元的每列位于位线和列线之间。 矩阵被细分为单元,其中每个单元具有四个存储单元,其对称地排列成两列和两列的位线。 所有四个单元在公共电节点处连接到位线,其中所选择的单元连接到列线。 存储装置还包括用于选择单行中的存储单元的行选择驱动器; 用于选择单列行的列选择驱动程序; 以及用于选择与列线相邻的位线之一的电路。
    • 9. 发明授权
    • Integrated circuit with power supply voltage level detection
    • 具有电源电压检测的集成电路
    • US4142118A
    • 1979-02-27
    • US825602
    • 1977-08-18
    • Elmer H. Guritz
    • Elmer H. Guritz
    • G01R19/165H01L21/822H01L27/04H02J1/00H03K19/003H03K3/00
    • G01R19/16552
    • An MOS integrated circuit includes internal circuitry for detecting the voltage level of an external power supply. The internal circuitry comprises networks for producing two reference voltages, each of which varies with supply voltage in a different but predictable manner such that when the reference voltages are equal, the supply voltage is at a sufficiently high level to assure the generation of valid logic levels. As the supply voltage increases beyond such level, the two reference voltages diverge in value, detection of which is achieved with a different amplifier. Circuitry responsive to the output of the differential amplifier gives a positive indication of sufficient supply voltage to other circuit portions of the integrated circuit device.
    • MOS集成电路包括用于检测外部电源的电压电平的内部电路。 内部电路包括用于产生两个参考电压的网络,每个参考电压以不同但可预测的方式随着电源电压而变化,使得当参考电压相等时,电源电压处于足够高的水平以确保生成有效的逻辑电平 。 随着电源电压增加超过这种电平,两个参考电压的价值发散,其检测由不同的放大器实现。 响应于差分放大器的输出的电路给出了对集成电路器件的其它电路部分的足够电源电压的肯定指示。