Semiconductor device

Patent metadata

Field	Value
Publication number	US-9207751-B2
Application number	US-201313778218-A
Country	US
Kind code	B2
Filing date	Feb 27, 2013
Priority date	Mar 1, 2012
Publication date	Dec 8, 2015
Grant date	Dec 8, 2015

Abstract

The semiconductor device includes a CPU core having functions of a control unit, an arithmetic unit, and a register; a first memory device including a plurality of blocks each including one or a plurality of rows of memory cells; a second memory device copying data that is to be treated in the CPU core from a first block selected by the CPU core from the plurality of blocks included in the first memory device, and storing the data; a plurality of switches controlling supply of power supply voltage to the respective blocks; a memory management unit recognizing an address of the first block; and a power controller turning off one of the plurality of switches using the address to stop supply of the power supply voltage to a second block of the plurality of blocks which is different from the first block.

First claim

What is claimed is:

1. A semiconductor device comprising:
a memory device comprising a first block, a second block, a first decoder being electrically connected to the first block, and a second decoder being electrically connected to the second block, the first block and the second block each including at least one row of memory cells;
a cache configured to temporarily store data from the first block;
a first switch between the first block and a first power supply line, and co…

Assignees

• Semiconductor Energy Lab

Inventors

• Nishijima Tatsuji

Classifications

• G06F1/3275 Primary

  Physics · mapped topic

• Y02B60/1228

  Cross-Sectional Technologies · mapped topic

• G11C5/14 Primary

  Physics · mapped topic

• G11C7/10

  Physics · mapped topic

• Y02D10/00

  Cross-Sectional Technologies · mapped topic