Pad Configuration Control Circuit for Wide I/O Semiconductor Power Management
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Solution Overview
Problem
Wide input/output semiconductor apparatuses require efficient pad configuration and power management due to a large number of pads, which existing technologies have not adequately addressed.
Innovation Solution
A semiconductor apparatus with a pad unit and a pad configuration control circuit that divides pads into groups and sets them to different modes using pad configuration control signals, allowing for efficient control of input/output paths through switches and signal lines, enabling flexible operation modes such as input/output-combined, input-dedicated, output-dedicated, and input/output blocking modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of pads are used in wide I/O semiconductor apparatus, then input/output capability is improved, but power consumption increases
Solution Approach 1:
The pad unit is divided into multiple pad groups (first pad group, second pad group, third pad group, fourth pad group) that can be independently controlled. This segmentation allows selective activation of only the necessary pads for current operation, reducing overall power consumption while maintaining high I/O capability when needed.
Solution Approach 2:
The pad configuration control circuit dynamically changes pad configurations based on operation mode requirements. Pads can be switched between different modes (input, output, high-drive output, blocking) in real-time, ensuring that power is consumed only when pads are actively needed for data transmission.
2Loss of energy
If pads are divided into multiple groups with different modes, then power management efficiency is improved, but device complexity increases
Solution Approach 1:
The pad configuration control circuit serves multiple functions: it selects pad groups, determines operation modes, controls switch states, and manages signal routing. This multi-functional approach consolidates what could be multiple separate control circuits into a single unit, reducing overall device complexity while achieving efficient power management.
Solution Approach 2:
Multiple control functions (pad group selection, mode determination, switch control) are merged into a single pad configuration control circuit. The control circuit integrates these functions to manage all pad groups uniformly, simplifying the control architecture despite the complexity of managing multiple pad groups with different modes.
3Reliability
If dedicated input and output paths are implemented, then signal transmission reliability is improved, but device complexity increases
Solution Approach 1:
Switches act as intermediary components between the pad unit and the core block, mediating signal flow between input and output paths. These switches enable dedicated signal paths when needed while maintaining the ability to share paths when appropriate, achieving reliable transmission without requiring completely separate physical paths for all operations.
Data Source
AI summary
A semiconductor apparatus may include: a pad unit including a plurality of pads; a memory cell array coupled to the pad unit through input/output signal lines; and a pad configuration control circuit configured to change a pad configuration of the pad unit by dividing the plurality of pads into a plurality of groups and setting the plurality of groups to different modes, respectively.