Data Strobing Circuit Speed Detection Delay Adjustment
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Solution Overview
Problem
In semiconductor apparatuses, physical positional differences among memory blocks and variations in operating speed make it difficult to strobe data at precise timing, especially as operating frequency increases.
Innovation Solution
A data strobing circuit that includes an operating speed detection unit to generate a control signal based on the detected speed, and a strobe signal generation unit that adjusts the delay time and pulse width of a read pulse to output a strobe signal, ensuring precise data strobing across memory blocks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the operating frequency of the semiconductor apparatus is increased, then the productivity is improved, but the data strobing precision deteriorates due to skew and positional differences among memory blocks
Solution Approach 1:
The strobe signal generation unit dynamically adjusts the delay time and pulse width of the strobe signal based on the operating frequency. By making the strobe signal parameters variable rather than fixed, the system maintains precise data latching across different operating frequencies despite skew and positional variations in memory blocks
Solution Approach 2:
The invention changes the parameters of the strobe signal (delay time and pulse width) according to the detected operating frequency. The operating speed detection unit measures the frequency, and the strobe signal generation unit modifies the strobe signal parameters accordingly, allowing the system to adapt to different operating conditions and maintain data strobing precision
2Productivity
If the operating frequency is increased, then the productivity is improved, but the reliability of data latching deteriorates due to difficulty in strobing data at precise timing
Solution Approach 1:
The operating speed detection unit provides feedback about the actual operating frequency to the strobe signal generation unit. This feedback mechanism allows the system to continuously monitor and adjust the strobe signal parameters based on the actual operating conditions, ensuring reliable data latching across varying frequencies
Solution Approach 2:
The strobe signal parameters (delay time and pulse width) are made dynamic and adjustable based on the operating frequency. This dynamic adjustment ensures that the strobe signal remains synchronized with the data signals even as operating conditions change, maintaining reliable data latching
Data Source
AI summary
A data strobing circuit may include: an operating speed detection unit configured to detect an operating speed of a semiconductor apparatus according to a clock signal, and generate a control signal with a different value depending on the detected operating speed; and a strobe signal generation unit configured to adjust a delay time and pulse width of a read pulse according to the control signal and output an adjusted signal as a strobe signal.