Ring Counter Deserializer Circuit for Compact Memory I/O
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Solution Overview
Problem
Typical memory device deserializers require a large number of flip-flop circuits, leading to a significant form factor, high power consumption, and increased peak current levels, which are inefficient in terms of area management and input/output speeds.
Innovation Solution
A ring counter-based deserializer circuit is implemented, using fewer flip-flops and latch circuits to manage clock signals for deserializing and synchronizing data, reducing the physical area, power consumption, and peak current while improving timing management by performing one clock domain transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a typical memory device deserializer uses a large number of flip-flop circuits to deserialize data, then the deserialization function is achieved, but the form factor increases significantly
Solution Approach 1:
The patent combines multiple flip-flop circuits into a single ring counter structure. The ring counter uses a circulating pattern of signals to replace what would traditionally require multiple separate flip-flop circuits, thereby achieving the same deserialization function with fewer physical components and reduced area.
Solution Approach 2:
The ring counter circuit performs multiple functions simultaneously: it generates clock signals, sequences the deserialization process, and manages data timing. This multi-functional approach replaces what would traditionally require multiple dedicated circuits, reducing the overall form factor while maintaining full deserialization capability.
2Device complexity
If a typical memory device deserializer uses a large number of flip-flop circuits, then data deserialization is achieved, but power consumption increases
Solution Approach 1:
By merging multiple flip-flop circuits into a single ring counter structure, the patent reduces the total number of active circuit elements that consume power. The ring counter's circulating signal pattern allows the same deserialization function to be performed with fewer simultaneous switching operations, thereby reducing overall power consumption.
3Device complexity
If a typical memory device deserializer uses a large number of flip-flop circuits, then data deserialization is achieved, but peak current levels increase
Solution Approach 1:
The ring counter structure consolidates the functionality of multiple flip-flop circuits into a single circuit element that operates with a circulating signal pattern. This merging reduces the number of simultaneous switching events and reduces peak current demand while maintaining the required deserialization function.
4Device complexity
If a typical memory device deserializer uses a large number of flip-flop circuits, then data deserialization is achieved, but area management efficiency decreases
Solution Approach 1:
The patent merges multiple flip-flop circuits into a compact ring counter structure that occupies significantly less silicon area. The circulating signal pattern of the ring counter allows efficient packing of the circuit, improving area management efficiency while maintaining full deserialization capability.
Data Source
AI summary
A memory sub-system including a memory device, wherein the memory device includes a circuit, operatively coupled to an array data bus of a memory array, and control logic, operatively coupled with the circuit, to perform operations including: deserializing a serial data stream in a first time domain to generate at least one of a set of rising data portions or a set of falling data portions; and synchronizing the at least one of the set of rising data portions or the set of falling data portions in a second time domain using at least one of a set of rising edge clock signals or a set of falling edge clock signals generated by a ring counter portion.