Shared Bank Address Output Circuit for Auto-Precharge
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Solution Overview
Problem
Existing electronic devices face challenges in efficiently performing auto-precharge operations due to the separate and redundant components required for write and precharge bank address output, leading to increased area and power consumption.
Innovation Solution
The electronic device shares a bank address output circuit for both write and precharge operations, and an input control signal generation circuit, allowing for reduced area and power consumption by utilizing a single circuit for both functions during auto-precharge operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate bank address output circuits are used for write and precharge operations, then the reliability of address output is improved, but the area and power consumption increase
Solution Approach 1:
The patent combines the write bank address output circuit and precharge bank address output circuit into a single shared circuit. The bank address output circuit is controlled by control signals to selectively output either the write bank address or the precharge bank address, eliminating the need for separate dedicated circuits for each function while maintaining operational reliability.
Solution Approach 2:
The bank address output circuit is designed to perform multiple functions: it can output write bank addresses during write operations and precharge bank addresses during precharge operations. This multi-functional design allows a single circuit to replace what would traditionally require separate dedicated circuits, reducing overall circuit area while maintaining the reliability needed for both operations.
2Reliability
If separate bank address output circuits are used for write and precharge operations, then the functional independence is improved, but the power consumption increases
Solution Approach 1:
The patent merges the write and precharge bank address output functions into a single circuit that is activated by different control signals. This approach maintains functional independence through control signal differentiation while reducing power consumption by eliminating redundant circuitry that would be present in separate dedicated circuits.
Solution Approach 2:
The shared bank address output circuit achieves multi-functionality by responding to different control signals for write and precharge operations. This universal circuit design reduces the total power consumption compared to having separate dedicated circuits, as the single circuit is optimized to handle both functions rather than having multiple circuits each consuming power independently.
3Reliability
If redundant components are used for write and precharge operations, then the operational reliability is improved, but the device complexity increases
Solution Approach 1:
The patent combines redundant write and precharge bank address output components into a single integrated bank address output circuit. This circuit uses control signals to selectively perform either write or precharge address output functions, reducing device complexity while maintaining the operational reliability that would otherwise require separate redundant components.
4Area of stationary object
If a shared bank address output circuit is used, then the area and power consumption are reduced, but the control complexity increases
Solution Approach 1:
The patent uses preliminary control signals that are generated in advance to manage the shared bank address output circuit. These control signals are prepared beforehand to selectively enable either write or precharge address output functions, allowing the circuit to operate correctly without requiring complex real-time decision-making logic within the circuit itself.
Data Source
AI summary
An electronic device may include: an input/output control signal generation circuit configured to generate an input control signal and a first output control signal during a write operation, and generate a second output control signal during a write operation with an auto-precharge operation; and a bank address output circuit configured to latch a bank address based on the input control signal, and output the latched bank address as a write bank address for the write operation or a precharge bank address for the auto-precharge operation, based on the first output control signal and the second output control signal.