摘要:
A phase adjusting circuit includes a circuit for providing an internal clock signal in synchronization with a reference clock signal, a delay circuit for delaying the internal clock signal for a predetermined delay time and an adjusting section for adjusting a phase difference between a phase of the reference clock signal and a phase of the internal clock signal delayed for the predetermined delay time.
摘要:
An image data memory with a 2-bank (bank A and bank B) structure is disclosed. The bank A stores only even field data, whereas the bank B stores only odd field data, and a peripheral circuit composed of elements such as row decoders and column decoders is provided in such a manner that each bank can be accessed independently of the other. One of the banks A and B is precharged while the other bank is accessed in order that the banks A and B are alternately accessed. Fast frame access is accomplished.
摘要:
Precharge circuits precharge plural pairs of bit lines to a specified potential when no word line is selected (during standby). Pull-down transistors are turned ON when the corresponding word lines are not selected so as to connect the corresponding word lines to a common power source line, which is connected to the ground. In a path connecting the above common power source line to the ground is disposed an impedance changing means for changing the impedance of the path between a value during standby and another valve during operation during which any word line is selected so that the value during standby is set higher than the value during operation. Consequently, during standby, a leakage current (standby current) resulting from a short circuit between a bit line and a word line is reduced.
摘要:
N-piece redundant address comparing circuits are individually composed of impedance converting circuits, so that information using redundancy is transmitted as an impedance value. Consequently, even though the N becomes larger as the capacity of a memory becomes larger, a signal line having large capacitance and the node of a redundant judging circuit are not charged or discharged. A high-speed operation can be realized without being affected by the capacitance of the signal line or by the capacitance of the node of the redundant judging circuit.
摘要:
The present invention relates to a building material design support system for supporting design of a building material capable of exhibiting a random texture pattern as a whole in a state in which the building materials are installed on a building portion and exhibiting continuity of the texture of adjacent building materials, such building material and a program for use in such building material design support system. More specifically, on a building material, first convex portions #A1L, #A1R, #A2L, #A2R to be arranged next to corresponding first convex portions of an adjacent building material have a prescribed texture common to every building materials, and the second convex portions have randomly arranged textures different from each other on every building material.
摘要:
A semiconductor memory device, including a memory cell including a flip-flop, and a memory cell power supply circuit for supplying a cell power supply voltage to the memory cell, wherein the memory cell power supply circuit supplies a cell power supply voltage in a first period and a different cell power supply voltage in a second period.
摘要:
A semiconductor integrated circuit device has a plurality of design patterns composed of circuit elements or wires formed on a substrate. The respective finished sizes of the plurality of design patterns have a plurality of minimum size values which differ from one design pattern to another depending on the geometric feature of each of the design patterns.
摘要:
A semiconductor integrated circuit device has a plurality of design patterns composed of circuit elements or wires formed on a substrate. The respective finished sizes of the plurality of design patterns have a plurality of minimum size values which differ from one design pattern to another depending on the geometric feature of each of the design patterns.
摘要:
A semiconductor integrated circuit includes an input circuit for taking in signals and an output circuit for outputting signals. The input circuit is so set that the input impedance during input signal transition is lower than the input impedance on other occasions than input signal transition. The output circuit is so set that the driving force during the second half of signal transition is lower than the driving force during the first half of transition. Such setting that the input impedance during input signal transition is lower than the input impedance on other occasions than input signal transition reduces reflected waves during input signal transition. Such setting that the driving force during the second half of signal transition is lower than the driving force during the first half of transition suppresses production of reflected waves during the second half of signal transition. Thus, the necessity for external components, such as damping resistors and terminator resistors, for impedance matching is obviated.
摘要:
In a building board having a designed surface with pattern convex portions, and upper and lower shiplap portions, both of which are formed in the end portion of the designed surface, a printing extension portion is formed in the lower shiplap1 portion, and the printing extension portion is printed in such a way that the extension portion and the pattern convex portion are continuously formed.