Semiconductor Data Output Control Circuit Burst Sequence Management
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Solution Overview
Problem
Semiconductor devices face challenges in efficiently controlling data output operations across bank groups, particularly in managing burst sequences and logic levels during read and write operations, which affects data integrity and processing efficiency.
Innovation Solution
The semiconductor device incorporates a synthesis control signal generation circuit and a data output control circuit that generate and manage synthesis control signals based on burst mode commands, latch control signals, and divided pulses to ensure consistent burst sequences before and after a bubble period, allowing for seamless data output across bank groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the synthesis control signal is changed during bubble period, then data output flexibility is improved, but data integrity deteriorates due to inconsistent burst sequences
Solution Approach 1:
The patent applies preliminary action by maintaining the synthesis control signal at its pre-bubble logic level throughout the bubble period. This ensures that the burst sequence configuration is established before the bubble period begins and remains consistent, preventing any changes that could compromise data integrity while still allowing flexible data output operations.
Solution Approach 2:
Instead of changing the synthesis control signal during the bubble period to improve flexibility, the patent inverts the approach by maintaining signal stability. The synthesis control signal is deliberately kept at the same logic level before and after the bubble period, ensuring consistent burst sequences while achieving data output flexibility through other means.
2Productivity
If burst mode commands are processed with changing logic levels, then processing efficiency is improved, but data integrity deteriorates due to inconsistent burst sequences
Solution Approach 1:
The patent establishes the burst sequence configuration before the bubble period begins and maintains it throughout. The synthesis control signal is set to the appropriate logic level in advance and held steady, ensuring that data output operations proceed efficiently with consistent burst sequences, eliminating the need for mid-operation signal changes.
3Adaptability or versatility
If the synthesis control signal logic level changes during bubble period, then burst sequence adaptability is improved, but burst sequence consistency deteriorates
Solution Approach 1:
The patent inverts the conventional approach by maintaining the synthesis control signal at the same logic level before and after the bubble period. This deliberate signal stability ensures consistent burst sequences while achieving the necessary adaptability through the timing and sequencing of data output operations rather than through signal level changes.
Data Source
AI summary
A semiconductor device includes a synthesis control signal generation circuit and a data output control circuit. The synthesis control signal generation circuit generates a synthesis control signal for determining a burst sequence from a latch control signal in response to a first burst mode command and a second burst mode command. The data output control circuit outputs data included in a bank group as internal data in response to the synthesis control signal.