MEMORY UNIT WITH MULTIPLY-ACCUMULATE ASSIST SCHEME FOR MULTI-BIT CONVOLUTIONAL NEURAL NETWORK BASED COMPUTING-IN-MEMORY APPLICATIONS AND COMPUTING METHOD THEREOF

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

16/784,215

專利證號

US 11,500,613

專利獲證名稱

MEMORY UNIT WITH MULTIPLY-ACCUMULATE ASSIST SCHEME FOR MULTI-BIT CONVOLUTIONAL NEURAL NETWORK BASED COMPUTING-IN-MEMORY APPLICATIONS AND COMPUTING METHOD THEREOF

專利所屬機關 (申請機關)

國立清華大學

獲證日期

2022/11/15

技術說明

A memory unit with a multiply-accumulate assist scheme for a plurality of multi-bit convolutional neural network based computing-in-memory applications is controlled by a reference voltage, a word line and a multi-bit input voltage. The memory unit includes a non-volatile memory cell, a voltage divider and a voltage keeper. The non-volatile memory cell is controlled by the word line and stores a weight. The voltage divider includes a data line and generates a charge current on the data line according to the reference voltage, and a voltage level of the data line is generated by the non-volatile memory cell and the charge current. The voltage keeper generates an output current on an output node according to the multi-bit input voltage and the voltage level of the data line, and the output current is corresponding to the multi-bit input voltage multiplied by the weight.

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