A library cell, specifically in the context of standard-cell libraries, is a pre-designed, low-level electronic logic function. These functions serve as building blocks for more complex digital circuits.
Key aspects of Library Cells:
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Functionality: Library cells implement basic logic operations. According to provided reference, examples include:
- AND gates
- OR gates
- INVERT (NOT) gates
- Flip-flops
- Latches
- Buffers
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Standardization: They are "standard" because they are designed with a fixed height but variable width. This standardization simplifies the automated layout and routing processes during integrated circuit design.
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Realization: Library cells are typically realized as full-custom cells, optimized for performance, power consumption, and area.
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Collection: A set of these cells is called standard-cell library.
In essence, library cells are the fundamental components that hardware engineers and Electronic Design Automation (EDA) tools use to create integrated circuits.
