摘要:
A device is disclosed herein, which may be used a level-shift circuit. The device includes first, second and third power supply lines supplied respectively with first, second and third power voltages that are different from one another, first and second input terminals and an output terminal, an output circuit coupled to the first power supply line, the first and second input terminals and the output terminal, a first inverter including an input node coupled to the first input terminal and an output node coupled to the second input terminal, a first transistor coupled in series to the first inverter between the second and third power supply lines, the fifth transistor being rendered non-conductive to deactivate the first inverter, and a control circuit configured to prevent the output terminal from being brought into an electrical floating state during deactivation of the first inverter.
摘要:
A semiconductor memory device includes: first and second bit lines of an open bit-line system; a sense amplifier that amplifies a potential difference between the first and second bit lines; a pair of first and second local data lines corresponding to the first and second bit lines, respectively; and a write amplifier circuit. The write amplifier circuit changes a potential of the second local data line without changing a potential of the first local data line at a time of writing data for the first bit line, and changes a potential of the first local data line without changing a potential of the second local data line at a time of writing data for the second bit line.
摘要:
Disclosed is a semiconductor device in which In case a data group output from a first output pin in a first word configuration is output from the first output pin and a second output pin in a second word configuration, and a data group output from a third output pin in a first word configuration is output from the third output pin and a fourth output pin in a second word configuration, the second output pin is arranged adjacent to the first output pin, and the fourth output pin is arranged adjacent to the third output pin.
摘要:
A DRAM adopting a single-intersection memory cell array having randomly accessible data registers accessed whenever the chip is accessed externally. When data items recorded in the data registers are simultaneously written in the memory cell array, the data items are encoded. When data items are read from the memory cell array into the data registers, the data items are decoded. The margin is enhanced because array noise derived from reading is reduced. In addition, the access time of the DRAM is also reduced.
摘要:
Disclosed is a sense amplifier arrangement that achieves high-speed access and shorter cycle time when array voltage is lowered in a DRAM. In a TG clocking sense system to separate data lines between the array side and the sense amplifier side in an early stage of a sensing period, a restore amplifier RAP is added, which amplifies data lines on the array side by referring to the data in the sense amplifier, and the restore amplifier is driven by a voltage VDH higher than the array voltage VDL. As a result, high-speed sense operation of the TG clocking system is made compatible with high-speed restore operation of overdrive system, and it is possible to achieve high-speed access operation and shorter cycle time.
摘要:
A DRAM adopting a single-intersection memory cell array having randomly accessible data registers accessed whenever the chip is accessed externally. When data items recorded in the data registers are simultaneously written in the memory cell array, the data items are encoded. When data items are read from the memory cell array into the data registers, the data items are decoded. The margin is enhanced because array noise derived from reading is reduced. In addition, the access time of the DRAM is also reduced.
摘要:
A semiconductor memory device is provided which can achieve the high integration, ultra-high speed operation, and significant reduction of power consumption during the information holding time, by reducing the increase in the area of a memory cell and obtaining a period of the ultra-high speed readout time and ensuring a long refresh period at the time of the self refresh. A DRAM employing a one-intersection cell·two cells/bit method has a twin cell structure employing a one-intersection 6 F2 cell, the structure in which: memory cells are arranged at positions corresponding to all of the intersections between a bit-line pair and a word line; and when a half pitch of the word line is defined as F, a pitch of each bit line of the bit-line pair is larger than 2 F and smaller than 4 F. Further, an active region in the silicon substrate, on which a source, channel and drain of the transistor of each memory cell are formed, is obliquely formed relative to the direction of the bit-line pair.
摘要翻译:提供一种半导体存储器件,其可以通过减少存储器单元的面积的增加并获得超宽带的周期,实现信息保持时间期间的高集成度,超高速度运行和功耗的显着降低, 高速读出时间,确保自刷新时间长的刷新周期。 采用单交点单元两个单元/位方法的DRAM具有采用单交叉6 F 2单元的双单元结构,其结构是:存储单元布置在对应于a 位线对和字线; 并且当字线的半间距被定义为F时,位线对的每个位线的间距大于2F且小于4F。另外,硅衬底中的有源区域 形成每个存储单元的晶体管的源极,沟道和漏极,相对于位线对的方向倾斜地形成。
摘要:
When a phase shift method is used as lithography where sense amplifiers are alternately placed in a one intersecting-point memory capable of implementing a reduction in the area of a DRAM, it was difficult to layout data lines in a boundary region between sense amplifiers and each memory array. Therefore, there is provided a semiconductor device according to the present invention. In the semiconductor device, two data lines continuous within the sub memory arrays or interposed therebetween are connected to the adjacent sense amplifiers as a system for drawing data lines from sub memory arrays (SMA) to sense amplifiers (SA) when the sense amplifiers are alternately placed. Namely, the number of data lines interposed between data lines respectively connected to two adjacent sense amplifiers is set to even numbers (0, 2, 4, . . . ). Owing to the above configuration, a break and a short circuit in a portion where a sense amplifier block and a sub memory array are connected, can be avoided, and a connection layout is facilitated.
摘要:
When a phase shift method is used as lithography where sense amplifiers are alternately placed in a one intersecting-point memory capable of implementing a reduction in the area of a DRAM, it was difficult to layout data lines in a boundary region between sense amplifiers and each memory array. Therefore, there is provided a semiconductor device according to the present invention. In the semiconductor device, two data lines continuous within the sub memory arrays or interposed therebetween are connected to the adjacent sense amplifiers as a system for drawing data lines from sub memory arrays (SMA) to sense amplifiers (SA) when the sense amplifiers are alternately placed. Namely, the number of data lines interposed between data lines respectively connected to two adjacent sense amplifiers is set to even numbers (0, 2, 4, . . . ). Owing to the above configuration, a break and a short circuit in a portion where a sense amplifier block and a sub memory array are connected, can be avoided, and a connection layout is facilitated.
摘要:
A device is disclosed herein, which may be used a level-shift circuit. The device includes first, second and third power supply lines supplied respectively with first, second and third power voltages that are different from one another, first and second input terminals and an output terminal, an output circuit coupled to the first power supply line, the first and second input terminals and the output terminal, a first inverter including an input node coupled to the first input terminal and an output node coupled to the second input terminal, a first transistor coupled in series to the first inverter between the second and third power supply lines, the first transistor being rendered non-conductive to deactivate the first inverter, and a control circuit configured to prevent the output terminal from being brought into an electrical floating state during deactivation of the first inverter.