摘要:
A direct sensing type semiconductor memory device combines read and write data bus lines in order to conserve real estate. The memory device includes a bit line pair and a sense amplifier connected between the lines of the bit line pair, and a data line pair. A first transistor is connected between a first potential and one of the data lines of the data line pair, and a gate of the first transistor is connected to one of the bit lines of the bit line pair. A second transistor is connected between the first potential and the other one of the data lines, and its gate is connected to the other of the bit lines. A switch circuit is connected between the data line pair and the bit line pair and transfers data from the data line pair to the bit line pair in accordance with a potential difference between the data line pair and the bit line pair.
摘要:
A semiconductor memory device is arranged so that its circuit area is made smaller and the stored data may be constantly outputted at fast speed. The semiconductor memory device includes a memory cell array and an auxiliary cell array concatenated with word lines on the increasing side of bit-line addresses in the memory cell array. The auxiliary cell array stores data of memory cells in the range from a first bit-line address on a next word-line address to a bit-line address located apart by a predetermined number of bits. A Y-address driver is also included in the semiconductor memory device. The Y-address driver reads data from the auxiliary cell array following the last bit-line address if the read of data pieces at a time ranges from the last bit-line address to the first bit-line address on the next word-line address in the memory cell array.
摘要:
A semiconductor memory device is arranged so that its circuit area is made smaller and the stored data may be constantly outputted at fast speed. The semiconductor memory device includes a memory cell array and an auxiliary cell array concatenated with word lines on the increasing side of bit-line addresses in the memory cell array. The auxiliary cell array stores data of memory cells in the range from a first bit-line address on a next word-line address to a bit-line address located apart by a predetermined number of bits. A Y-address driver is also included in the semiconductor memory device. The Y-address driver reads data from the auxiliary cell array following the last bit-line address if the read of data pieces at a time ranges from the last bit-line address to the first bit-line address on the next word-line address in the memory cell array.
摘要:
Synchronous memory devices and control methods for performing burst write operations are disclosed. In one embodiment, a synchronous memory device for controlling a burst write operation comprises a first buffer circuit for buffering a first control signal requesting an exit from the burst write operation in synchronization with a clock signal associated with the burst write operation, and a latch circuit for performing a reset in response to the first control signal forwarded by the first buffer circuit, wherein the reset triggers the exit from the burst write operation.
摘要:
In a storage device having a redundancy remedy function in a block unit having a memory cells array divided in plural blocks, prior to the access operation to individual memory cells in the block, the block address BA for specifying a block is entered, and block redundancy is determined in the entered block address BA, and hence it is not necessary to determine input or redundancy of the block address BA on every occasion of the access operation. As a result, the time to the access operation start to the memory cell can be shortened, and the access speed is enhanced.
摘要:
An armature for a rotating electrical machine and more particularly to an insulating cover for the pole teeth around which the windings are formed that has good strength against the winding without risk of damage of the insulator due to increased thickness in the highly stressed areas.
摘要:
A semiconductor integrated circuit device provided with an IC chip so as to prevent its circuits from malfunction when the IC chip is cracked. To detect chip cracks, a resistor R01 is disposed at the outer periphery of the area which wants to detect the chip crack. If the chip is cracked and the resistance value of the resistor R01 is changed, the resistance change is detected, thereby controlling internal signals such as the power on reset signal and stopping the whole operation of the circuit device so as to prevent the circuits from malfunction. Thus, the system security can also be improved.
摘要:
The present invention comprises a power transmission system, an IC card, and an information communication system using an IC card. In the power transmission system, power is transmitted by radio from the power transmission device to the IC card. In the IC card, the transmitted induced power is converted into a DC voltage, the transmitted induced power or a voltage corresponding to the induced power is detected, and a desired DC voltage to be suppled to the internal circuit is obtained in controlling resistance the detected induced power or the voltage corresponding to the induced power.
摘要:
The temperature measuring system using optical interference includes a light source which generates measuring light; a spectroscope which measures an interference intensity distribution that is an intensity distribution of reflected light; optical transfer mechanisms which emit light reflected from a surface and a rear surface of the object to be measured to the spectroscope; an optical path length calculation unit which calculates an optical path length by performing Fourier transformation; and a temperature calculation unit which calculates a temperature of the object to be measured on the basis of a relation between optical path lengths and temperatures. The light source has a half-width at half-maximum of a light source spectrum that satisfies conditions based on a wavelength span of the spectroscope. The spectroscope measures the intensity distribution by using the number of samplings that satisfies conditions based on the wavelength span and a maximum measurable thickness.
摘要:
In the storage device of the invention, latch control is performed on a series of signals in response to latch control signals. Latch control terminals are provided to which the latch control signals are input respectively and a plurality of signal terminals to which a series of signals are input. Herein, a plurality of latch circuits is provided so as to correspond to the plurality of signal terminals, respectively. The plurality of latch circuits are located within a specified distance from their associated signal terminals respectively and within a specified distance from the latch control terminals. The delays of signal transmission from the signal terminals to their associated latch circuits can be equalized and the delays of signal transmission from the latch control terminals to which the latch control signals for executing latch control are input to the latch circuits can be equalized. This contributes to a reduction in the skew of the latch characteristics of the signals.