Memory Device Enable Signal Circuit Reduces Latency
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Solution Overview
Problem
Current data access systems experience latency issues during the process of accessing data from memory devices, particularly due to delays in decoding addresses and transferring data from memory arrays to sense amplifiers.
Innovation Solution
The implementation of an enable signal generating circuit that produces a first and second enable signal to coordinate column selection and sense amplifier activation, allowing direct data transmission from memory arrays to sense amplifiers with reduced latency by minimizing the number of gating structures between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If traditional data access process is used with multiple gating structures, then data access is more reliable and controllable, but data access speed decreases due to increased latency
Solution Approach 1:
The patent extracts and removes unnecessary gating structures from the data path between memory array and sense amplifier. By taking out redundant control gates that were previously required for column selection and sense amplifier activation, the patent reduces the number of sequential operations, thereby reducing latency and improving data access speed while maintaining essential control functions through optimized enable signals.
2Measurement precision
If more gating structures are used for column selection and sense amplifier control, then control precision is improved, but device complexity increases
Solution Approach 1:
The patent merges the control functions of column selection and sense amplifier activation into a unified enable signal mechanism. Instead of using separate complex gating structures for each function, the patent combines these controls through optimized enable signals that coordinate both operations, reducing the total number of gates while maintaining precise control over the data access process.
Solution Approach 2:
The enable signal generating circuit is designed to perform multiple functions: it controls column selection, activates sense amplifiers, and coordinates data transmission timing. This multi-functional approach replaces what would traditionally require multiple dedicated control circuits, thereby reducing device complexity while maintaining control precision through the versatile enable signal mechanism.
Data Source
AI summary
Systems and methods are provided for a memory device. A memory device includes a memory array, a column selection circuit coupled to the memory array, where the column selection circuit is configured to generate a column selection signal, and a sense amplifier configured to receive data signals from the memory array. An enable signal generating circuit is configured to generate a first enable signal and a second enable signal. The column selection circuit generates the column selection signal based on the first enable signal, and the sense amplifier is configured to receive a data signal from the memory array in response to the second enable signal.