公开(公告)号：US5287306A

公开(公告)日：1994-02-15

申请号：US718449

申请日：1991-06-20

申请人： Shinji Miyamoto ,  Shigeo Ohshima

发明人： Shinji Miyamoto ,  Shigeo Ohshima

IPC分类号： G11C11/413 ,  G11C5/14 ,  G11C7/10 ,  G11C11/407 ,  G11C11/409 ,  G11C11/417 ,  H03K17/16 ,  H03K17/687 ,  H03K19/0175 ,  G11C7/00

CPC分类号： G11C5/14 ,  G11C7/1051

摘要： A semiconductor memory device includes a first power source having a non-ground potential V.sub.cc1 terminal and a ground potential V.sub.ss1 terminal. The internal circuit is supplied with power from the first power source. The first power source is dedicated to the internal circuit. The internal circuit selects a memory cell of a memory cell array in accordance with an inputted address. The internal circuit has a first output terminal and a second output terminal the first output terminal outputs one of a pair of potential V.sub.cc1 and V.sub.ss1 and the second output terminal outputs the other of the pair in accordance with the data in the selected memory cell. A second power source has a non-ground potential V.sub.cc2 terminal and a ground potential V.sub.ss2 terminal. The output circuit is supplied with power from the second power source which is dedicated to the output circuit. The output circuit has first and second transistors serially connected between the V.sub.cc2 terminal and V.sub.ss2. The control terminals of the first and second transistors are connected to the first and second output terminals. A third transistor is connected between an interconnection between the first and second transistors connected to a data output from which data is externally outputted and the first output terminal, and the control terminal of the third transistor being connected to the second output terminal.

摘要翻译： 半导体存储器件包括具有非接地电位Vcc1端子和接地电位Vss1端子的第一电源。 内部电路由第一个电源供电。 第一个电源专用于内部电路。 内部电路根据输入的地址选择存储单元阵列的存储单元。 内部电路具有第一输出端子和第二输出端子，第一输出端子输出一对电位Vcc1和Vss1中的一个，第二输出端子根据所选存储单元中的数据输出该对中的另一个。 第二电源具有非接地电位Vcc2端子和接地电位Vss2端子。 输出电路由专用于输出电路的第二电源供电。 输出电路具有串联连接在Vcc2端子和Vss2之间的第一和第二晶体管。 第一和第二晶体管的控制端子连接到第一和第二输出端子。 第三晶体管连接在与外部输出数据的数据输出端连接的第一和第二晶体管之间的互连和第一输出端子之间，第三晶体管的控制端子连接到第二输出端子。

公开(公告)号：US5251180A

公开(公告)日：1993-10-05

申请号：US799988

申请日：1991-11-29

申请人： Shigeo Ohshima

发明人： Shigeo Ohshima

IPC分类号： G11C8/18 ,  G11C11/4076 ,  G11C11/407

CPC分类号： G11C11/4076 ,  G11C8/18 ,  G11C2207/061

摘要： In the semiconductor memory composed of divided dynamic memory cell arrays, when a drive signal is supplied to a word line selected by a row decoder, data stored at the memory cells connected to the word line are transferred to bit lines, respectively. A change in potential at the bit line pair is amplified by the sense amplifier to completely read the data. To prevent the bit line pairs from being sensed erroneously due to fluctuation of the timings at which the word line driving signals are generated in the divided cell arrays, a bit line sense signal is generated a predetermined delay time after all the word line driving signals have been generated, in order to drive all the sense amplifiers simultaneously, so that data can be definitely read from the memory cells to the bit lines. To detect that all the word line driving signals have been generated, a drive signal detection section is connected between word line driving circuits for all the divided cell arrays and a delay circuit connected to a sense amplifier driving circuit.

公开(公告)号：US5237532A

公开(公告)日：1993-08-17

申请号：US794668

申请日：1991-11-18

申请人： Hiroshi Sahara ,  Haruki Toda ,  Shigeo Ohshima

发明人： Hiroshi Sahara ,  Haruki Toda ,  Shigeo Ohshima

IPC分类号： G11C7/10

CPC分类号： G11C7/103

摘要： In a semiconductor memory having a column-direction serial access function, two systems of circuits for selecting and fetching data are provided. A circuit operation is alternately performed such that one system is set up while the other system is accessed, thereby reducing a cycle time for a data selecting/fetching operation.

摘要翻译： 在具有列方向串行访问功能的半导体存储器中，提供用于选择和取出数据的两个电路系统。 交替执行电路操作，使得在另一个系统被访问时建立一个系统，从而减少数据选择/取出操作的周期时间。

公开(公告)号：US5229971A

公开(公告)日：1993-07-20

申请号：US613001

申请日：1990-11-15

申请人： Masakazu Kiryu ,  Shigeo Ohshima

发明人： Masakazu Kiryu ,  Shigeo Ohshima

IPC分类号： G11C11/401 ,  G11C7/00 ,  G11C11/407 ,  G11C11/4096

CPC分类号： G11C7/00 ,  G11C11/4096

摘要： A semiconductor memory device comprises a memory cell array, a row decoder, a column decoder, registers and a control unit. The control unit allows the write operational mode of the column decoder to switch. In the ordinary write operational mode, data in the n registers are written into the active memory cells of the n memory cell columns in on column block selected by the column decoder, respectively. In the block write mode, data in the n registers are written into active memory cells of the n memory cell columns in the 2.sup.N column blocks selected by the column decoder, respectively. Another semiconductor memory device comprises N memory units. Each memory unit comprises a memory cell array, a row decoder, a first column decoder, a second column decoder, a data input terminal, registers and a control circuit. The control circuit is operative to allow the operational mode. When the device is in the ordinary mode, data latched in the register is written into one memory cell connected to one word line selected by the row decoder of one column selected by the first column decoder of column blocks selected by the second decoder. While when the device is in the block write mode, data latched in the register is written at the same time into j memory cells connected to one word line selected by the row decoder of column blocks selected by the second column decoder.

公开(公告)号：US5075887A

公开(公告)日：1991-12-24

申请号：US647202

申请日：1991-01-28

申请人： Koichi Magome ,  Masakazu Kiryu ,  Shigeo Ohshima ,  Haruki Toda ,  Hiroshi Sahara

发明人： Koichi Magome ,  Masakazu Kiryu ,  Shigeo Ohshima ,  Haruki Toda ,  Hiroshi Sahara

IPC分类号： G11C7/00 ,  G11C7/20 ,  G11C11/4072 ,  G11C11/409

CPC分类号： G11C7/20 ,  G11C11/4072 ,  G11C11/409 ,  G11C7/00

摘要： A semiconductor memory device is disclosed which comprises, as shown in FIG. 1, a pair of column lines, memory cells connected to the corresponding column lines, a sense amplifier connected to the column lines, row lines for selecting the memory cells in accordance with a row address signal, and first and second transistors having their current paths connected between the column lines and a fixed potential supply terminal supplied with a positive power source potential or a ground potential, wherein the gates of the first and second transistors are connected to the first and second row lines for a data rewrite operation which can be selected independently of the row line.

公开(公告)号：US4864164A

公开(公告)日：1989-09-05

申请号：US254915

申请日：1988-10-07

申请人： Shigeo Ohshima ,  Youichi Suzuki ,  Makoto Segawa

发明人： Shigeo Ohshima ,  Youichi Suzuki ,  Makoto Segawa

IPC分类号： G11C11/413 ,  G11C5/06 ,  G11C5/14 ,  G11C7/10 ,  G11C11/401 ,  G11C11/409 ,  H01L27/10 ,  H03K19/003

CPC分类号： G11C7/1057 ,  G11C5/063 ,  G11C5/14 ,  G11C7/1051 ,  G11C7/1078 ,  G11C7/1084 ,  H03K19/00361

摘要： An integrated circuit includes an input buffer circuit and an output buffer circuit. The source voltage to the input buffer circuit and the output buffer circuit are supplied through bonding pads formed independently on a semiconductor chip, and electrically connected to a source potential lead pin. The input node of the input buffer circuit is coupled to the source potential of the output buffer circuit with a capacitor.