High density and high speed magneto-electronic logic family

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to logic values of said first and second signals and a separate control signal;
• wherein said device can be controlled to perform at least a first and second boolean logic operation on said signals, the first boolean logic operation being different from the second boolean logic operation;
• and
• further wherein said control signal indicates whether a first or second boolean logic operation is to be performed by the device.

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to logic values of said first and second signals;
• wherein said device can be controlled to perform at least a first and second logic operation on said signals, the first logic operation being different from the second logic operation;
• and
• further wherein the logic state of the configurable element corresponds to a magnetization state of such element.

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to logic values of said first and second signals;
• wherein said device can be controlled to perform at least a first and second logic operation on said signals, the first logic operation being different from the second logic operation;
• and
• further wherein said configurable element is electrically isolated from the input.

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to logic values of said first and second signals;
• wherein said device can be controlled to perform at least a first and second logic operation on said signals, the first logic operation being different from the second logic operation;
• and
• further wherein the configurable element has a surface area less than approximately 50.mu..sup.2.

An electronic device for performing a logic operation based on a first input signal and a second input signal, the device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to logic values of said first and second signals;
• wherein said device can be controlled to perform at least a first and second logic operation on said signals, the first logic operation being different from the second logic operation;
• and
• further wherein the device uses a spin polarized electron current.

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element which element has a logic state that can be adjusted in response to logic values of said first and second signals;
• wherein said device can be controlled to perform at least a first and second logic operation on said signals, the first logic operation being different from the second logic operation;
• and
• further wherein the device includes a ferromagnetic layer adapted to be used as said electronically configurable element, and a separate hall effect element.

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to the logic levels of said first and second signals, and a separate control signal;
• wherein said device can perform a first logic operation on said signals during a first time period, and a second, different logic operation on said signals during a second time period under control of said separate control signal.

An electronic device for performing a logic operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to the logic levels of said first and second signals;
• wherein said device can perform a first logic operation on said signals during a first time period, and a second, different logic operation on said signals during a second time period;
• and
• further wherein the logic state of the configurable element corresponds to a magnetization state of such element.

An electronic device which can perform a programmable boolean operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to the logic levels of said first and second signals;
• wherein said device can be programmed by a control signal to perform a first boolean operation on a first set of said input signals, and can be re-programmed by said control signal to perform a second, different boolean operation on a second set of said input signals.

An electronic device which can perform a programmable boolean operation based on a first input signal and a second input signal, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to the logic levels of said first and second signals;
• wherein said device can be programmed to perform a first boolean operation on a first set of said input signals, and can be re-programmed to perform a second, different boolean operation on a second set of said input signals;
• and
• further wherein the logic state of the configurable element corresponds to a magnetization state of such element.

A device that can perform a logic operation within a logic circuit based on a first input signal and a second input signal, said signals originating from either a first or second logic stage within said logic circuit, said device comprising,

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that is based on a magnetization state of said element, and which logic state can be adjusted in response to the logic levels of said first and second signals;
• wherein said device can effectuate a first logic operation on said first and second output signals when they originate from said first logic stage, and said device can effectuate a second logic operation different from the first boolean operation on said first and second output signals when such signals originate from said second logic stage.

A device that can perform at least two boolean operations within a logic circuit based on a first input signal and a second input signal, said signals originating from either a first or second logic stage within said logic circuit, said device comprising:

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that is based on a magnetization state of said element, and which logic state can be adjusted in response to the logic levels of said first and second signals;
• an output for generating a logic state signal indicative of the state of the configurable element;
• wherein said first logic stage treats said device as a first boolean logic device, and said second logic stage simultaneously treats said device as a second boolean logic device.

A magneto-electronic processor for performing a programmable logic operation on a first input signal and a second input signal, said processor comprising,

• an input for receiving said signals and a programmable control signal associated with said programmable logic operation;
• and
• a magneto-electronic element, which element processes said signals based on the logic values of said first and second signals and the programmable control signal;
• and
• wherein said processor performs a first logic operation in response to a first value of the programmable control signal, and a second logic operation different from the first logic operation in response to a second value of the programmable control signal which is different from the first value of the programmable control signal.

A method of performing logic operations using an electronically configurable logic gate, said method comprising the steps of:

• configuring said gate to perform a first logic operation;
• and
• applying a first input logic signal and a second input logic signal to said gate;
• and
• modifying a logic state of said gate in response to values of said first and second logic signals to effectuate a first logic operation on the first and second signals;
• and
• configuring said gate to perform a second logic operation;
• and
• applying a third input logic signal and a fourth input logic signal to said gate;
• modifying a logic state of said gate element in response to logic values of said third and fourth logic signals to effectuate a second logic operation on the third and fourth signals, the first logic operation being different from the second logic operation;
• wherein the logic state of the logic gate corresponds to a magnetization state of a configurable magneto-electronic element associated with the logic gate.

A method of performing logic operations using an electronically configurable logic gate, said method comprising the steps of:

• configuring said gate to perform a first logic operation;
• and
• applying a first input logic signal and a second input logic signal to said gate;
• and
• modifying a logic state of said gate in response to values of said first and second logic signals to effectuate a first logic operation on the first and second signals;
• and
• configuring said gate to perform a second logic operation;
• and
• applying a third input logic signal and a fourth input logic signal to said gate;
• modifying a logic state of said gate element in response to logic values of said third and fourth logic signals to effectuate a second logic operation on the third and fourth signals, the first logic operation being different from the second logic operation;
• wherein the logic state of the logic gate corresponds to a magnetization state of a configurable magneto-electronic element associated with the logic gate;
• and
• further wherein the logic state of the logic gate is non-volatile.

A method of performing logic operations using an electronically configurable logic gate, said method comprising the steps of:

• configuring said gate to perform a first logic operation;
• and
• applying a first input logic signal and a second input logic signal to said gate;
• and
• modifying a logic state of said gate in response to values of said first and second logic signals to effectuate a first logic operation on the first and second signals;
• and
• configuring said gate to perform a second logic operation;
• and
• applying a third input logic signal and a fourth input logic signal to said gate;
• modifying a logic state of said gate element in response to logic values of said third and fourth logic signals to effectuate a second logic operation on the third and fourth signals, the first logic operation being different from the second logic operation;
• wherein the logic state of the logic gate corresponds to a magnetization state of a configurable magneto-electronic element associated with the logic gate, and said configurable element has a surface area less than approximately 50.mu..sup.2.

A method of operating a logic gate, which gate includes a configurable magneto-electronic element for implementing a logic operation based on input signals ting from either a first or second logic circuit, said method comprising the steps of:

• configuring said gate to implement a first logic operation in response to input signals from a first logic circuit;
• and
• configuring said gate to implement a second logic operation in response to input signals from said second logic circuit;
• wherein at any instance in time said gate can perform either of the first or second operations, and where the second logic operation is different from the first logic operation.

A method of operating a logic gate, which gate implements a logic operation based on input signals originating from either a first or second logic circuit, said method comprising the steps of:

• configuring said gate to implement a first logic operation including a logical OR function in response to input signals from a first logic circuit;
• and
• configuring said gate to implement a second logic operation including a logical AND function in response to input signals from said second logic circuit;
• wherein at any instance in time said gate can perform either of the first or second operations, and where the second logic operation is different from the first logic operation.

A method of operating a logic gate, which gate implements a logic operation based on signals received at an input originating from either a first or second logic circuit, said method comprising the steps of:

• configuring said gate to implement a first logic operation when the input receives signals from the first logic circuit;
• and
• configuring said gate to implement a second logic operation when the input receives signals from the second logic circuit;
• wherein at any instance in time said gate can perform either of the first or second operations, and where the second logic operation is different from the first logic operation, such that said gate effectively implements two different logical operations simultaneously.

A method of implementing a magneto-electronic processor, which processor performs a programmable logic operation on a first input signal and a second input signal, said method comprising the steps of:

• providing an input for receiving said signals and a programmable control signal associated with said programmable logic operation;
• and
• providing a magneto-electronic element;
• processing said signals with the magneto-electronic element to effectuate a first logic operation in response to a first value of the programmable control signal;
• and
• processing said signals with the magneto-electronic element to effectuate a second logic operation in response to a second value of the programmable control signal, which second logic operation is different from the first logic operation.

An electronic device for performing logic operations on a first and second input signal, said device comprising:

• an input for receiving said first and second input signals;
• and
• an electronically configurable element, which element has a logic state that can be adjusted in response to logic values of said first and second signals;
• said device being adapted such that:
• (i) when said first and second signals span a first amplitude range between a first logical high state and a first logical low state said device performs a first logic operation said first and second signals;
• and
• (ii) when said first and second signals span a second amplitude range between a second logical high state and a second logical low state said device performs a second logic operation on said first and second signals, said second logic operation being different from said first logic operation.

A method of performing logic operations on a first and second input signal, comprising the steps of:

• (a) receiving said first and second input signals;
• and
• (b) generating an output in response to logic values of said first and second signals using a configurable electronic element, said output being based on either a first or second logic operation performed on said first and second signals, such that:
• (i) when said first and second signals span a first amplitude range between a first logical high state and a first logical low state, said output is based on a first logic operation performed on said first and second signals;
• and
• (ii) when said first and second signals span a second amplitude range between a second logical high state and at second logical low state, said output is based on a second logic performed on said first and second signals, said second logic operation being different from said first logic operation.