Patent ID: 9620178
Date: 2017-04-11
CPC Classifications: G11C

Claim:
1. A memory system comprising: a 1st memory group; a 2nd memory group; a power supply voltage adjustment circuit including a 1st terminal and a 2nd terminal, a level of the 2nd terminal changing after a level of the 1st terminal is changed; a 1st line electrically connecting the 1st terminal to the 1st memory group; a 1st switch including a 3rd terminal, a 4th terminal, and a 5th terminal, the 1st switch electrically connecting the 3rd terminal to the 4th terminal when turned on; a 2nd line electrically connecting the 1st terminal to the 3rd terminal; a 3rd line electrically connecting the 4th terminal to the 2nd memory group; and a 4th line electrically connecting the 2nd terminal to the 5th terminal.