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JSSC 2024第6期Data Converters28nmDACSRAM

A 28-nm 501-TOPSW P-8T SRAM Compute-In-Memory Macro Design With BL Charge-Sharin

提出一种基于PMOS的8T SRAM存内计算宏设计,采用BL电荷共享技术降低DAC和ADC硬件成本。
28nm CMOS, 0.6-1.2V, 50.1-TOPS/W, CIFAR-10准确率91.26%
存内计算SRAM电荷共享ADC能效优化
BL电荷共享技术降低DAC面积和功耗
4位粗-细闪存ADC与SRAM内参考电压生成协同设计
电荷域计算实现宽电压范围工作(0.6-1.2V)
Abstract
This article presents a low-cost PMOS-based 8T (P-8T) static random access memory (SRAM) compute-in- memory (CIM) macro that efficiently reduces the hardware cost associated with a digital-to-analog converter (DAC) and an analog-to-digital converter (ADC). By utilizing the bitline (BL) charge-sharing technique, the area and power consumption of the proposed DAC have been reduced while achieving similar conversion linearity compared to a conventional DAC. The BL charge-sharing also facilitates th