MTJ Random Number Circuit With Low-Voltage Clock Architecture
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Solution Overview
Problem
Current random number generators have complex circuit architectures, large circuit areas, poor Time-Dependent Dielectric Breakdown (TDDB) performance, and high power consumption.
Innovation Solution
A random number generation circuit utilizing a magnetic tunnel junction (MTJ) with a simple architecture comprising six transistors and one MTJ, including three inverters, which generates random numbers through setting and resetting currents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If current random number generator architectures are used, then random number generation function is achieved, but circuit area is large and device complexity is high
Solution Approach 1:
The patent merges multiple functions into a unified circuit architecture using magnetic tunnel junctions (MTJs) as the core component. The MTJ-based design integrates random number generation, state storage, and logic operations in a single compact structure, eliminating the need for separate circuit blocks and significantly reducing overall circuit area while maintaining the random number generation function.
Solution Approach 2:
The patent replaces traditional electronic logic circuits with magnetically-based MTJ devices. This substitution transitions from conventional transistor-based logic to magnetic state-based computation, enabling more compact device structures and reducing circuit complexity while achieving the same random number generation functionality.
2Use of energy by moving object
If current random number generator architectures are used, then random number generation function is achieved, but power consumption is high
Solution Approach 1:
The patent changes the operating parameters of the random number generator by using low-voltage clock signals to drive the MTJ-based circuit. This parameter change reduces power consumption significantly while the magnetic nature of MTJs provides inherent stability that maintains or improves TDDB performance compared to traditional high-voltage electronic circuits.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The circuit occupies a smaller area, consumes less power, and improves TDDB performance by using a low-voltage clock signal.
Implementation Method 1
a magnetic tunnel junction (MTJ) including a first terminal and a second terminal
Data Source
AI summary
The application discloses a random number generation circuit and method. The random number generation circuit includes: a magnetic tunnel junction (MTJ) including a first terminal and a second terminal; a first inverter including an input terminal receiving a clock signal, and an output terminal; a second inverter including an input terminal receiving the clock signal, and an output terminal coupled to the first terminal of the magnetic tunnel junction; and a third inverter including an input terminal coupled to the output terminal of the first inverter, and an output terminal coupled to the second terminal of the magnetic tunnel junction.