Multifunctional In-Memory Computation Architecture Using Single-Ended Disturb-Free 6T SRAM

摘要

Abstract This paper presents an In-Memory Computation (IMC) architecture using Full Swing Gate Diffusion Input (FS-GDI) in a single-ended disturb-free 6T SRAM. Not only are basic boolean functions (AND, NAND, OR, NOR, XOR2, XOR3, XNOR2) fully realized, a Ripple-Carry Adder (RCA) is also realized such that IMC is feasible without ALU (Arithmetic Logic Unit) or CPU. FS-GDI reserves the benefits of the original GDI, and further resolves the reduced voltage swing issue, but it leads to speed degradation and large static power. Therefore, by using in-memory computing technique, the well-known von-Neumann bottleneck will be mitigated as well as energy efficiency is enhanced.