Flash Device Access Timing Optimization

The patent applies local quality by configuring different access timings for different NAND flash ICs based on their specific routing characteristics. Each flash IC group receives customized timing parameters (such as different delay values for address latch enable, data input, and output enable signals) matched to its routing length and load, rather than using a uniform timing for all ICs.

The patent implements dynamics by making the access timing configurable and adjustable. The control IC can dynamically select and apply different timing configurations for different flash ICs, allowing the system to adapt timing parameters to match varying routing conditions while maintaining optimized performance across multiple ICs.

The patent applies segmentation by dividing the flash memory system into multiple groups, with each group containing flash ICs that share similar routing characteristics. Each segment is assigned a specific access timing configuration optimized for its routing length and load, allowing performance optimization without requiring unique timing for every single IC.

The control IC implements universality by using a single control unit that can apply multiple different timing configurations to different flash IC groups. The control IC serves multiple functions: it manages data access across all ICs, selects appropriate timing configurations, and applies the correct timing parameters based on which flash IC group is being accessed, thereby handling diversity through a unified multi-functional controller.