Data sensing device and data sensing method thereof

a data sensing device and data technology, applied in the field of data sensing devices and data sensing methods thereof, can solve the problems of requiring relatively high hardware cost, requiring relatively high power to execute computations, and memory cells of non-volatile memory cannot provide the transconductance of negative values, so as to reduce the amount of required reference curren

Active Publication Date: 2021-03-25
MACRONIX INT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about a device and method that reduces the amount of reference currents needed. The device adjusts the read-out current of a memory string based on the amount of input signals it receives. This way, the device can perform a sensing operation with a predetermined number of reference currents, even if the amount of input signals changes. This saves circuit area and power consumption.

Problems solved by technology

Such approach requires relatively high hardware cost and requires relatively high power to execute the computations.
However, the memory cells of the non-volatile memory cannot provide the transconductances of the negative values.
Therefore, a reference current generating circuit with a large area is required, and power consumption is increased.

Method used

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  • Data sensing device and data sensing method thereof
  • Data sensing device and data sensing method thereof
  • Data sensing device and data sensing method thereof

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Embodiment Construction

[0021]Referring to FIG. 2, FIG. 2 is a schematic diagram of a data sensing device according to an embodiment of the invention. The data sensing device 200 includes a memory array 210, and the memory array 210 includes one or a plurality of memory strings 211. The data sensing device 200 includes a current adjuster 220 and a sensing amplifier 230. The current adjuster 220 corresponds to the memory string 211 in the memory array 210, and generates a shift current according to an amount SX of a plurality of input signals X1-XM of the memory string 211. Moreover, the current adjuster 220 receives a read-out current IR generated by the memory array 210 according to the input signals X1-XM, and adjusts the read-out current IR according to the shift current to generate an adjusted read-out current IADJ. The current adjuster 220 provides the adjusted read-out current IADJ to the sensing amplifier 230.

[0022]In the embodiment, the sensing amplifier 230 receives the adjusted read-out current I...

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Abstract

A data sensing device and a data sensing method are provided. The data sensing device includes a current adjuster and a sensing amplifier. The current adjuster corresponds to a memory string of a memory array, generates a shift current according to an amount of a plurality of input signals of the memory string, and generates an adjusted read-out current by adjusting a read-out current of the memory string according to the shift current. The sensing amplifier receives the adjusted read-out current and a plurality of reference currents, and generates a read-out data by comparing the adjusted read-out current and the plurality of reference currents.

Description

BACKGROUNDTechnical Field[0001]The invention relates to a data sensing device and a data sensing method thereof, and particularly relates to a data sensing device suitable for neural network computation and a data sensing method thereof.Description of Related Art[0002]Along with evolution of electronic technology, artificial intelligence technology has gradually become a mainstream, and a neural network is an important way to perform artificial intelligence computations.[0003]The neural network is subject to a large amount of computations. In the conventional technical field, the neural network computation is often performed through a digital circuit or a high-order processor. Such approach requires relatively high hardware cost and requires relatively high power to execute the computations. Therefore, the conventional techniques perform the neural network computations through a non-volatile memory, which may effectively reduce a circuit area and reduce required power consumption.[0...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): G11C11/4091G11C11/408G11C5/14G11C5/02
CPCG11C11/4091G11C5/02G11C5/147G11C11/4087G06N3/063G11C5/14G11C7/1006G11C7/062G11C7/067G11C2207/063G11C11/54G11C13/004G11C2013/0045G11C2013/0054G11C13/0026G11C11/56
InventorWEI, MING-LIANGLIU, ZU-HENG
OwnerMACRONIX INT CO LTD