摘要:
A memory cell accessing method may include receiving an input address, determining whether the input address has been accessed at least a predetermined number of times, and converting a memory cell enabled by the input address when it is determined that the input address has been accessed the predetermined number of times or more.
摘要:
A decoder, a memory system, and a physical position converting method thereof may detect whether an address count of an input address is equal to or greater than a predetermined value. A physical position of a semiconductor memory device corresponding to the input address may be converted if the address count is equal to or greater than the predetermined value.
摘要:
Integrated circuit memory devices having synchronized bit line selection and I/O line precharge capability include an array of memory cells, a pair of differential bit lines electrically coupled to the array of memory cells, a pair of differential input/output lines and a sense amplifier electrically coupled to the pair of differential input/output lines. An equalization circuit is also provided to equalize the potentials of the pair of differential input/output lines in response to a precharge enable signal. A column select circuit is provided to electrically connect the pair of differential bit lines to the pair of differential input/output lines, in response to a column select enable signal. In addition, a control signal generator is provided to generate the column select enable signal and the precharge enable signal during nonoverlapping time intervals and in-sync with an external clock signal. Using these circuits, the timing margins (e.g., overplus operation margin) associated with the enabling of the precharge signal upon the disabling of the column select signal can be advantageously reduced to enable higher speed operation.
摘要:
A first precharge circuit precharges a bit line to an equalization voltage during precharging operations and is disabled during charge sharing operations floating the bit line. A second precharge circuit precharges a bit line bar to an equalization voltage during precharging and charge sharing operations. Since the bit line is floated during charge sharing operations, and the bit line bar is continually precharged to an equalization voltage level, variation of the bit line bar voltage level due to a charge coupling between the bit line and the bit line bar during charge sharing is prevented. The difference in a level between the bit line and the bit line bar after the charge sharing can be detected by a sense and amplification circuit.
摘要:
A memory cell accessing method may include receiving an input address, determining whether the input address has been accessed at least a predetermined number of times, and converting a memory cell enabled by the input address when it is determined that the input address has been accessed the predetermined number of times or more.
摘要:
A power supply arrangement for a semiconductor chip includes, in a first preferred embodiment, a power supply voltage line, a ground voltage line, an intermediate voltage line, a plurality of first noise reduction capacitors connected between the intermediate voltage line and the power supply voltage line, and a plurality of second noise reduction capacitors connected between the intermediate voltage line and the ground voltage line. In a second preferred embodiment, the power supply arrangement includes a power supply voltage line, a ground voltage line, a quiet power supply voltage line, a quiet ground voltage line, a plurality of first noise reduction capacitors connected between the power supply voltage line and the quiet ground voltage line, and a plurality of second noise reduction capacitors connected between the ground voltage line and the quiet power supply voltage line.
摘要:
A decoder, a memory system, and a physical position converting method thereof may detect whether an address count of an input address is equal to or greater than a predetermined value. A physical position of a semiconductor memory device corresponding to the input address may be converted if the address count is equal to or greater than the predetermined value.