Multi-Function Level-Shifting Latch Circuit for Smaller Chip Layouts
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Solution Overview
Problem
Conventional circuit designs for source driving chip circuits require larger layout areas, making them unsuitable for reducing chip area and fabrication costs while providing voltage level shifting and data latching functions.
Innovation Solution
A multi-function circuit module utilizing a combination of switch modules to selectively couple voltage sources and nodes, enabling both voltage level shifting and data latching functions through control signals, thereby reducing the circuit layout area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate data latch circuit and level shifting circuit are used, then voltage level shifting function and data latching function are achieved, but circuit layout area increases
Solution Approach 1:
The patent combines the data latch circuit and level shifting circuit into a single integrated circuit module. The switch elements serve dual purposes: they function as latching switches for data storage and as level shifting switches for voltage translation, thereby achieving both functions within a unified circuit structure that reduces overall layout area.
Solution Approach 2:
The switch elements in the circuit are designed to perform multiple functions simultaneously. The same switches are used for both latching data signals and shifting voltage levels, making the circuit module universal in its functionality and eliminating the need for separate dedicated circuits for each function.
2Adaptability or versatility
If larger circuit layout area is used, then voltage level shifting and data latching functions are implemented, but chip area reduction and fabrication cost reduction are hindered
Solution Approach 1:
By merging the data latch circuit and level shifting circuit into one integrated module, the patent reduces the total chip area required. This consolidation directly lowers fabrication costs as smaller chip areas require less manufacturing material and processing resources.
Solution Approach 2:
The multi-functional switch elements that perform both latching and level shifting operations reduce the overall component count and circuit complexity, thereby simplifying the manufacturing process and reducing fabrication costs while maintaining both required functions.
Data Source
AI summary
The present invention discloses a multi-function circuit module having voltage level shifting function and data latching function via switching a plurality of switch elements. The multi-function circuit module includes a first circuit module, a fourth switch element, and a fifth switch module, wherein the first circuit module further includes a first switch module, a second switch module, and a third switch module. The multi-function circuit module can substantially reduce the circuit layout area. For example, when the multi-function circuit module of the present invention is applied in a source driving chip circuit, the multi-function circuit module can replace the original low-to-high voltage level shifting circuit and data latching circuit, so as to attain the purpose of reducing the chip area.