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Content Provider | ACM Digital Library |
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Author | Chen, Chin-Fu Subramaniam, Prasad Chang, Foong-Charn |
Abstract | This paper describes an accurate and efficient gate level delay calculator that automatically characterizes and computes the gate delays of MOS circuits. The high accuracy is attributed to a sophisticated delay model, which includes an accurate representation of the waveform, a consistent and meaningful definition of delay, a consideration of waveform slope effects at both the input and output of a gate, and an innovative approach for handling transmission gate circuits. Meanwhile, the high efficient delay characterization is accomplished through a fast timing simulation technique instead of using a circuit simulation or a timing simulation technique, a theorem to reduce a two-dimensional delay table into a scaled one-dimensional table, and an incremental characterization process.The delay calculator has been used in a production timing analyzer and a production multiple delay simulator since 1986. The results show that the multiple delay simulator performs 5000 times faster than a SPICE-like circuit simulator at only 15% cost of accuracy. Gate delay models, delay characterization, and practical examples are presented in this paper. |
Starting Page | 282 |
Ending Page | 287 |
Page Count | 6 |
ISBN | 0818688645 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 1988-06-01 |
Access Restriction | Subscribed |
Content Type | Text |
Resource Type | Article |
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