Patent ID: 8274841
Filing Date: 2012-09-25
Classification: G11C,H01L

Abstract:
1. A semiconductor signal processing device comprising: a plurality of unit operator cells arranged in rows and columns and being divided into operation unit blocks in a row direction, each for storing data in a nonvolatile manner and passing a current of a different amount according to the storage data; a write circuit for expanding each bit of multi-bit numerical data to a number of bits corresponding to a bit position in the numerical data to produce internal write data in each operation unit block, for concurrently selecting unit operator cells in the operation unit block, and for concurrently writing bits of said internal write data corresponding to said multi-bit numerical data in corresponding unit operator cells in the operation unit block; a plurality of global read data lines arranged corresponding to the columns of said plurality of unit operator cells; a read circuit for concurrently selecting the unit operator cells of a plurality of rows in said plurality of unit operator cells in data reading, and for passing a current corresponding to data stored in each selected selection unit operator cell through a corresponding global read data line; and a conversion circuit for adding currents supplied through the global read data lines in an analog manner in each operation unit block, and converting a result of the adding into a digital signal.