EAIC DFLOP Circuit With Precharge for Faster Internal Clocking
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Solution Overview
Problem
Conventional DFLOP circuits in EAIC systems face inefficiencies in layout area and response speed due to the need for multiple transistors and feedback logic, which complicates the generation of internal clock signals and affects the overall performance.
Innovation Solution
The proposed DFLOP circuit incorporates a signal transmission controller, a precharge unit, and an inversion unit activated by the internal clock signal, reducing the number of transistors and modifying the logic to improve response speed and layout efficiency by precharging output nodes and inverting signals based on the clock signal level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional DFLOP circuit structure with multiple transistors and feedback logic is used, then the circuit can generate internal clock signals, but the layout area increases and response speed decreases
Solution Approach 1:
The patent extracts and removes the feedback logic component from the conventional DFLOP circuit structure. By eliminating the feedback path that connected output to input, the circuit simplifies the logic structure, reducing the number of transistors required and thereby decreasing layout area while maintaining the core functionality of internal clock signal generation through the signal transmission controller and precharge unit
Solution Approach 2:
The patent replaces complex feedback logic with simpler, transient precharge and discharge operations. The precharge unit temporarily charges capacitive nodes during specific clock phases, then allows natural discharge through controlled paths. This approach uses simple switching elements rather than complex logic gates, reducing transistor count and layout area while achieving the same timing control function
2Reliability
If conventional DFLOP circuit structure with multiple transistors and feedback logic is used, then the circuit can generate internal clock signals, but the response speed decreases
Solution Approach 1:
By removing the feedback logic from the circuit path, the patent eliminates the additional propagation delay introduced by feedback signal traversal. The direct control path from clock signal to signal transmission controller to output stages reduces the number of logic levels signals must pass through, thereby increasing response speed while preserving reliable internal clock generation
Solution Approach 2:
The precharge unit performs preliminary charging of output nodes in advance before the actual signal transmission is needed. By pre-charging capacitive loads during idle phases or before active periods, the circuit reduces the time required for voltage transitions during active operation, thereby increasing response speed without compromising the reliability of clock signal generation
3Area of stationary object
If the number of transistors is reduced and logic is modified, then layout area efficiency improves, but circuit functionality may be compromised
Solution Approach 1:
The signal transmission controller is designed to perform multiple functions: it responds to clock signals, controls signal transmission timing, generates ready signals, and maintains output stability. This multi-functional design consolidates what would traditionally require separate logic blocks into a single integrated unit, reducing overall transistor count and layout area while preserving complete circuit functionality through careful state machine design
Solution Approach 2:
The circuit uses its own internal clock signal and output states to automatically control the precharge and discharge operations. The ready signal generated by the circuit itself feeds back to control when precharging occurs, creating a self-regulating system that maintains proper functionality without external control logic. This self-service mechanism ensures reliable operation while minimizing the transistor count required for control logic
Data Source
AI summary
A DFLOP circuit for an EAIC system includes a resolver. The resolver includes a signal transmission controller that is activated under the control of an internal clock signal to receive and transmit an input signal, and a precharge unit that is activated in response to the internal clock signal to precharge an output node of the signal transmission controller.