Title
Modeling unbuffered latches for timing analysis
Abstract
Unbuffered latches are often used in high-performance designs with custom timing flows. Adding these circuits to a standard library enables improved designs without blowing the library size. We observe a high potential frequency gain (up to 16%) for smaller power consumption. Accurate models for static timing analysis are required to reach a good point on the safety to performance trade-off. We are proposing a complete modeling methodology that can fit in a standard timing analysis flow. An accurate n-model is presented for the input impedance of an unbuffered latch with less than 2% error. We also present a new setup criteria required for these latches. We also show that more advanced waveform models are required to model the output. A Weibull waveform model proves to be effective in this case.
Year
DOI
Venue
2004
10.1109/ICCAD.2004.1382582
ICCAD
Keywords
Field
DocType
network analysis,static timing analysis,weibull distribution,timing analysis
Computer science,Flow (psychology),Waveform,Weibull distribution,Real-time computing,Electronic engineering,Static timing analysis,Network analysis,Electronic circuit,Input impedance,Power consumption
Conference
ISBN
Citations 
PageRank 
0-7803-8702-3
0
0.34
References 
Authors
6
3
Name
Order
Citations
PageRank
Chirayu S. Amin113610.12
Florentin Dartu237368.79
Yehea I. Ismail3755116.82