Logical Effort
Examples
A detailed example of logical effort applied to the design of a multiplier.Figures
- all figs (1733KB Zip File)
Software
CAT_Tool: The Perl script used in Chapter 5 to characterize the logical effort of gates. The script takes a SPICE netlist of the gates, a process file, and a list of input stimuli for each gate. It measures the logical effort and parasitic delay of each gate using the test setup described in Chapter 5. (You must have an HSPICE license to use this program. The script comes with no warranty or technical support and is only intended as an example of the material discussed in Chapter 5.)
LE_Legion: A Java tool to design NAND, NOR, AND, and OR gates. It takes the number of inputs and the electrical effort of the path and computes the minimum delay tree, as discussed in Section 11.1. This tool can be used from a form-based interface on the Web, or downloaded for use on your computer.
- charlib.tar (8KB .gz File)
- andtree (4KB .java File)
CAT Tool
LE Legion
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