Programmable logic circuit and nonvolatile FPGA

摘要

A programmable logic circuit according to an embodiment includes: a first programmable device with a first and second terminals, a resistance of the first programmable device being changeable from a high resistance to a low resistance; a second programmable device with a third and fourth terminals, a resistance of the second programmable device being changeable from a high resistance to a low resistance; a first wiring line to which the first terminal is connected; a second wiring line to which the third terminal is connected; a third wiring line to which the second terminal and the fourth terminal are connected; and a fuse element of which one terminal is connected to the third wiring line.

主权项

1. A programmable logic circuit comprising:
a first programmable device with a first terminal and a second terminal, a resistance of the first programmable device being changeable from a high resistance to a low resistance; a second programmable device with a third terminal and a fourth terminal, a resistance of the second programmable device being changeable from a high resistance to a low resistance; a first wiring line to which the first terminal of the first programmable device is connected; a second wiring line to which the third terminal of the second programmable device is connected; a third wiring line to which the second terminal of the first programmable device and the fourth terminal of the second programmable device are connected; and a fuse element of which one terminal is connected to the third wiring line,
wherein each programmable device is a MOS transistor including a source, a drain and a gate, each of the first and third terminals is one of the source and the drain, and each of the second and fourth terminals is the gate.