摘要:
A system for programming arrays of floating gate memory cells reduces programming current requirements, and reduces wordline and bitline stress during programming. A word-to-be-programmed into a floating gate memory array is divided into a plurality of smaller subwords. Only one subword is programmed at a time, thereby reducing programming current requirements. Additionally, subwords which are successfully programmed are not reprogrammed even if bits in other subwords do not program properly. This creates less wordline stress than previous systems which program an entire word at once, thereby requiring subwords which program successfully to be reprogrammed along with subwords which fail to program. Finally, within each subword only those bits which failed to program are reprogrammed, thereby reducing bitline stress during reprogramming for those bits which were successfully programmed.
摘要:
A communication system includes a time-to-digital converter, a digital low-pass filter, and a digital signal processor. The time-to-digital converter receives an in-phase signal of a frequency-shift keying signal and to generate a digital signal according to the in-phase signal. The digital low-pass filter receives the digital signal and to generate a filtered signal including N continuous words according to the digital signal. The digital signal processor divides up the N continuous words into N/2 word sets in order, wherein each of the N/2 word sets includes a first word and a second word, and if a difference between the first word and the second word meets a predetermined condition, the digital signal processor generates an output data and an output clock according to all the first words and the second words that have difference which meets the predetermined condition.
摘要:
A voltage regulator includes an amplifier, a power device, a delay signal generator, and a voltage-generating circuit. The amplifier generates a control signal according to a reference voltage and a feedback voltage. The power switch generates the output voltage by regulating the output current according to the switch control signal. The delay signal generator generates a plurality of sequential delay signals each having distinct delay time with respect to an externally applied power-on burst signal. The voltage-generating circuit provides an equivalent resistance for generating the feedback voltage corresponding to the output voltage, and regulates the output voltage by adjusting the equivalent resistance according to the plurality of sequential delay signals.
摘要:
A method of charging a data line to a desired voltage level prior to the data line being sensed in a low power memory device by discharging the data line from a voltage level above the desired voltage level to approximately the desired voltage level. By using N-type transistors to discharge the data line to the desired voltage level, the voltage level can be reached faster with cheaper components.
摘要:
A variable stage charge pump for a flash memory device is described. The variable stage charge pump includes a first charge pump and a second charge pump. A first switch couples an output of the first charge pump to an input of the second charge pump. A second switch couples an input of the first charge pump to the input of the second charge pump. The first and second charge pump are series-coupled to a common output node when the first switch is in a first position and the second switch is in a second position, wherein the first and second charge pumps are parallel-coupled to the common output node when the first switch is in the second position and the second switch is in the first position.
摘要:
A variable stage charge pump for a flash memory device is described. The variable stage charge pump includes a first charge pump and a second charge pump. A first switch couples an output of the first charge pump to an input of the second charge pump. A second switch couples an input of the first charge pump to the input of the second charge pump. The first and second charge pumps are series-coupled to a common output node when the first switch is in a first position and the second switch is in a second position, wherein the first and second charge pumps are parallel-coupled to the common output node when the first switch is in the second position and the second switch is in the first position.
摘要:
A communication system includes a time-to-digital converter, a digital low-pass filter, and a digital signal processor. The time-to-digital converter receives an in-phase signal of a frequency-shift keying signal and to generate a digital signal according to the in-phase signal. The digital low-pass filter receives the digital signal and to generate a filtered signal including N continuous words according to the digital signal. The digital signal processor divides up the N continuous words into N/2 word sets in order, wherein each of the N/2 word sets includes a first word and a second word, and if a difference between the first word and the second word meets a predetermined condition, the digital signal processor generates an output data and an output clock according to all the first words and the second words that have difference which meets the predetermined condition.
摘要:
A voltage regulator includes an amplifier, a power device, a delay signal generator, and a voltage-generating circuit. The amplifier generates a control signal according to a reference voltage and a feedback voltage. The power switch generates the output voltage by regulating the output current according to the switch control signal. The delay signal generator generates a plurality of sequential delay signals each having distinct delay time with respect to an externally applied power-on burst signal. The voltage-generating circuit provides an equivalent resistance for generating the feedback voltage corresponding to the output voltage, and regulates the output voltage by adjusting the equivalent resistance according to the plurality of sequential delay signals.
摘要:
An integrated circuit structure includes a semiconductor chip including a front surface and a back surface; a via extending from the back surface of the semiconductor chip into the semiconductor chip, wherein the via is light transparent; and a photon detector in the semiconductor chip and exposed to the via.
摘要:
In a floating gate memory that has a buffer that can be coupled to a set of floating gate memory cells in the memory, a method of writing to a selected portion of the set of floating gate cells. For example, a method of writing a byte to a floating gate memory where the memory uses a page buffer reads and writes to an entire row of cells at a time. Store contents of the set of floating gate cells into the buffer, store the data into a portion of the buffer corresponding to the selected portion of the set of floating gate cells, and store contents of the buffer into the set of floating gate cells. An improved floating gate memory is disclosed in which data may be loaded into a portion of the floating gate cells in a set of cells that may be coupled to a buffer.