Abstract:
An embodiment of the invention provides a memory array including a plurality of bit lines, a plurality of memory cells and a device. Each of the plurality of memory cells has a first node, a second node and a third node, wherein the third node is coupled to one of the plurality of bit lines. The device couples the plurality of bit lines together to form a common node for one of the plurality of memory cells.
Abstract:
A power supply circuit includes a voltage output controller configured for outputting voltages, a standby controller configured for directing the voltage output controller to provide voltage to a load, and a microprocessor configured for controlling the standby controller according to a mode of the load. The voltage output controller is applied with a direct current voltage. When the load enters active mode from a powered off mode, the standby controller sends a control signal to the voltage output controller to output direct current voltage to the load and the microprocessor. When the load enters standby mode from the active mode, the microprocessor directs the standby controller to prevent the voltage output controller from outputting direct current voltage to the load and the microprocessor.
Abstract:
A power supply control circuit includes a standby control circuit, a microprocessor, and a power supply main circuit. The standby control circuit generates a pulse signal, outputs a first control signal, and sets the first control signal to an active state upon actuation of the switch member. The microprocessor outputs and sets a second control signal to first and second states upon first and second generations of the pulse signal, respectively. The standby control circuit maintains the first control signal at the active state when the second control signal is set to the first state, and sets the first control signal to an inactive state when the second control signal is set to the second state. The power supply main circuit outputs a power when the first control signal is set to the active state, and cuts off the power when the first control signal is set to the inactive state.
Abstract:
A serial peripheral flash memory device uses a plurality of dummy input/output terminals to enable the selection of a parallel mode for devices that have a slower serial clock speed. In parallel mode, data is transmitted over the plurality of dummy input/output terminals to allow a plurality of bits to be transmitted at the same time improving the data transmission rate at the slower serial clock speed.
Abstract:
A nitride read only memory (NROM) erase system is disclosed. The NROM erase system comprises at least one memory sector, N sense amplifiers, and N buffers. The memory sector is segmented into N erase retry units according to the number of the sense amplifiers. One buffer corresponds with one erase retry unit and one sense amplifier. The N buffers are used to indicate whether their corresponding erase retry units are erased after an erase process of an erase operation. One of the buffers will be set if its corresponding erase retry unit is not erased. In this case, a subsequent erase process will begin to erase the un-erased erase retry unit. The erase retry units that are erased in a previous erase process will not be affected by the subsequent erase process. A method for using the disclosed NROM erase system is also described.
Abstract:
A vehicle jack including a top table fixed to the bottom side of a motor vehicle, a control unit mounted on the top table, the control unit having a rotation control lever, a lifting control lever, and an extension control lever, a power unit, which includes a battery, a motor connected to the battery, an oil tank, a hydraulic oil loop, and a pump driven by the motor to pump hydraulic oil out of the oil tank into the hydraulic oil loop, a base table revolvably coupled to the top table, the base table having a driven gear fastened to the top table, a driving gear meshed with the driven gear and driven by the rotation control lever through a motor pump being coupled to the hydraulic oil loop, and three stands equiangularly pivoted to the base table, each stand having two opposite reciprocating parts reciprocated by hydraulic oil from the hydraulic oil loop through the control of the lifting control lever and extension control lever of the control unit.
Abstract:
A power supply control circuit includes a standby control circuit, a microprocessor, and a power supply main circuit. The standby control circuit generates a pulse signal, outputs a first control signal, and sets the first control signal to an active state upon actuation of the switch member. The microprocessor outputs and sets a second control signal to first and second states upon first and second generations of the pulse signal, respectively. The standby control circuit maintains the first control signal at the active state when the second control signal is set to the first state, and sets the first control signal to an inactive state when the second control signal is set to the second state. The power supply main circuit outputs a power when the first control signal is set to the active state, and cuts off the power when the first control signal is set to the inactive state.
Abstract:
A NROM memory device includes an array of memory cells and first and second bit lines. The first and second bit lines are coupled to opposite sides of the memory cells. During an erase operation, one of the sides of the memory cells receives a positive voltage and the other side couples to a common node or a limited current source. Methods are also disclosed that can easily screen for marginal memory cells based on a threshold voltage distribution of the memory cells.