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Word line drive circuit and memory circuit

A memory circuit and word line drive technology, applied in the field of memory circuits, can solve the problems of large instantaneous power consumption, lower RFID tag, smart card performance, and large instantaneous current, and achieve chip area reduction, reduced current consumption, and reduced The effect of power consumption

Active Publication Date: 2016-05-25
SEMICON MFG INT (SHANGHAI) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, since each bit line is connected with a pre-charging circuit or a pre-discharging circuit, the number of the pre-charging circuits or pre-discharging circuits is very large, and during the pre-charging or pre-discharging process, the The instantaneous current of the pre-charging circuit or pre-discharging circuit will be very large, so that the instantaneous power consumption of passive electronic products such as RFID tags and smart cards will be very large, which will reduce the working performance of passive electronic products such as RFID tags and smart cards.

Method used

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  • Word line drive circuit and memory circuit
  • Word line drive circuit and memory circuit
  • Word line drive circuit and memory circuit

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Embodiment Construction

[0037]In the prior art, in order to increase the voltage of the bit line to a specific voltage value quickly, each bit line is connected with a pre-charge circuit or a pre-discharge circuit. Before reading the signal of the memory cell, it is necessary to use The precharge circuit or predischarge circuit precharges or predischarges the bit line voltage. However, due to the large number of bit lines in a memory, for example, when the storage capacity of the memory is 4M, the memory includes 1024 word lines arranged horizontally and 4096 bit lines arranged vertically. A precharge circuit or a predischarge circuit is connected, and even though the precharge / predischarge current on each bit line is small, the total precharge / predischarge current on the 4096 bit lines is large. However, since the power consumed in passive electronic products such as RFID tags and smart cards is provided by the transmitter, it is necessary to reduce the internal power consumption as much as possible...

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Abstract

The invention relates to a word line drive circuit and a storage device circuit. The word line drive circuit comprises a first PMOS (p-channel metal oxide semiconductor) transistor and a second NMOS (n-channel metal oxide semiconductor) transistor, wherein a source electrode of the first PMOS transistor is connected with a first signal end, a source electrode of a first NMOS transistor is connected with a second signal end, and a drain electrode of the first PMOS transistor is connected with a drain electrode of the first NMOS transistor and connected with a word line; a grid electrode of the first PMOS transistor is connected with a first control signal end, a grid electrode of the first NMOS transistor is connected with a second control signal end, and the width of a channel region of the first NMOS transistor is smaller than that of a channel region of the first PMOS transistor. By utilizing the word line drive circuit and the storage device circuit, the chip areas of the word line drive circuit and the storage device circuit can be reduced, and the power consumption of the storage device circuit can be reduced.

Description

technical field [0001] The invention relates to a memory circuit, in particular to a word line drive circuit and a memory circuit with low power consumption. Background technique [0002] In recent years, as the demand for portable electronic products continues to increase, the demand for memory in electronic products continues to increase, and especially with the advent of the Internet of Things era, the demand for passive electronic products such as RFID tags and smart cards continues to increase. People hope that the power consumption of the memory in the RFID tag and the smart card will be smaller and smaller, so that the working power consumption of the entire RFID tag and the smart card can be reduced. Since the power received by RFID tags and smart cards is a certain value, the low power consumption of the memory can make the sensing distance of RFID tags and smart cards longer, thereby improving the working performance of passive electronic products such as RFID tags...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C7/12
Inventor 權彞振杨家奇许家铭郑晓
Owner SEMICON MFG INT (SHANGHAI) CORP
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