Library

In electronic design, library often refers to a collection of cells, macros or functional units that perform common operations and are used to build more complex logic blocks. A standard cell library is a collection of low level logic functions such as AND, OR, INVERT, flip-flops, latches and buffers. These cells are realized as fixed height, variable width full custom cells. The key aspect with these libraries is that they are of a fixed height,... more

In electronic design, library often refers to a collection of cells, macros or functional units that perform common operations and are used to build more complex logic blocks. A standard cell library is a collection of low level logic functions such as AND, OR, INVERT, flip-flops, latches and buffers. These cells are realized as fixed height, variable width full custom cells. The key aspect with these libraries is that they are of a fixed height, which enables them to be placed in rows, easing the process of automated digital layout. The cells are typically optimised full custom layouts, which minimise delays and area. A typical standard cell library contains two main components: They also may contain the following additional components: An example is a simple XOR logic gate, which can be formed from OR, INVERT and AND gates. There are many gates available in the electronics library; they are simply implemented in the circuit through ICs. Different ics are available for different... less