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Cell Library Tour

In the lecture we will have a look at (some of) the following documents:

Standard Cell Student Project: »Kogge Stone Adder

Cell libraries in the public domain:

»0.5 Micron Cell Library

Another »90nm Cell Library

Some others: »VLSI TECH

Things to note: there's a good variety of basic gates, including quite a few multi-level gates, such as AND-OR gate. There's also I/O pads, flip-flops and special function cells. Many gates are available with various output powers.

For each gate there are comprehensive figures that enable one to predict its delay and energy use, taking into account its track loading, how many other gates it is feeding and the current supply voltage.

18: (C) 2008-13, DJ Greaves, University of Cambridge, Computer Laboratory.