Adjustable Pinout Chip Selecting Circuit
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Solution Overview
Problem
The pinout definitions of chips constrain the layout and wiring on printed circuit boards (PCBs), limiting flexibility and increasing the area and cost of PCBs due to rigid connection relationships between pins.
Innovation Solution
A chip with an adjustable pinout function, comprising a logic circuit and a selecting circuit that allows pinouts to be coupled to different ports, providing flexibility in signal input and output by using switches or multiplexers to control connections between pinouts and ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pinout definitions of chips are fixed, then the chip structure is simple and manufacturing is easy, but the PCB layout flexibility is reduced and wiring length increases
Solution Approach 1:
The patent implements dynamic pinout configuration by introducing a selecting circuit that can switch between different pinout definitions (first pinout and second pinout) based on control signals. This allows the chip to adapt its pinout configuration dynamically, resolving the contradiction between fixed simple structure and flexible adaptability.
Solution Approach 2:
The patent changes the pinout configuration parameters by providing multiple pinout definitions (first pinout with first mapping relationships, second pinout with second mapping relationships) and selecting between them through control signals. This parameter switching mechanism enables flexible PCB layout while maintaining a relatively simple underlying chip structure.
2Length of stationary object
If the pinout definitions are fixed, then the chip manufacturing is straightforward, but the wiring length on PCB increases leading to larger area and more interference
Solution Approach 1:
The selecting circuit dynamically switches between first pinout and second pinout configurations based on control signals, allowing the optimization of wiring length according to specific PCB layout requirements. This dynamic capability reduces wiring length and associated interference while maintaining straightforward manufacturing processes.
3Adaptability or versatility
If multiple pinout configurations are provided, then the PCB layout flexibility increases, but the chip circuit complexity increases
Solution Approach 1:
The patent segments the pinout configuration into distinct first pinout and second pinout definitions, each with specific mapping relationships. The selecting circuit switches between these segmented configurations based on control signals, providing flexibility while keeping each individual configuration relatively simple.
Solution Approach 2:
The chip achieves multi-functionality by incorporating both first pinout and second pinout configurations that can be selected based on different application scenarios. This universal design allows the same chip to serve multiple layout requirements without significantly increasing the complexity of each individual configuration.
Data Source
AI summary
A chip with an adjustable pinout function is disclosed. The chip includes a first pinout, a second pinout, a logic circuit, and a selecting circuit. The logic circuit includes a first port and a second port. The selecting circuit, which is coupled to the logic circuit, the first pinout, and the second pinout, controls the first pinout to be coupled to the first port or the second port, and controls the second pinout to be coupled to the first port or the second port.