GSI Technology, Inc.
IN-MEMORY COMPUTING DEVICE FOR 8T-SRAM MEMORY CELLS

Abstract:

An in-memory computing device includes a memory array, a multiple row decoder and a sensing circuit. The memory includes non-destructive memory cells, each of which includes an 8T-SRAM to store a bit of data. Each cell is connected to a read word line and a write word line, both connecting a row of said memory cells, a write bit line and a complementary write bit line, and a read bit line connecting a single column of said memory cells. The multiple row decoder activates at least two read word lines at a same time. The sensing circuit detects a signal on each of the selected read bit lines of multiple selected columns for reading. Each signal is a Boolean function of the stored data in the memory cells in its column activated by the activated read word lines.