Patent ID: 8009456
Filing Date: 2011-08-30
Classification: G11C

Abstract:
1. A resistance change type memory comprising: first and second drive lines extending in a first direction; a third drive line extending in a second direction intersecting the first direction; a first resistance change element having one end connected to the third drive line; a first diode having an anode connected to the first drive line and a cathode connected to other end of the first resistance change element; a second diode having an anode connected to other end of the first resistance change element and a cathode connected to the second drive line; a driver/sinker which supplies a write current to the first resistance change element; and a write control circuit arranged such that when first data is written to the first resistance change element, the write current is caused to flow in a direction from the first drive line to the third drive line, and when second data is written to the first resistance change element, the write current is caused to flow in a direction from the third drive line to the second drive line.