Title :
Automated load-independent cell library macromodeling for efficient and accurate waveform simulation
Author :
Ciplickas, Dennis J. ; Rohrer, Ronald A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
Abstract :
A novel gate-level macromodeling technique is presented. In an attempt to address the increasingly analog behavior of signals in semi-custom digital designs, the technique produces a linear transient macromodel capable of accurately predicting the gate output voltage waveform over a wide range of input and loading conditions. The macromodel is derived by analyzing SPICE generated voltage and current responses for a set of “extreme” operating conditions and is shown to exhibit good waveform prediction capability and average performance errors of approximately ±10%
Keywords :
CMOS logic circuits; SPICE; application specific integrated circuits; buffer circuits; circuit analysis computing; integrated circuit design; integrated circuit modelling; logic CAD; logic design; transient analysis; CMOS logic buffers; SPICE; average performance errors; current responses; gate output voltage waveform; gate-level macromodeling technique; linear transient macromodel; load-independent cell library macromodeling; operating conditions; semicustom digital ICs; transient response; voltage responses; waveform prediction capability; waveform simulation; Computational modeling; Computer simulation; Design automation; Libraries; Linear systems; Performance analysis; SPICE; Semiconductor device modeling; Signal design; Voltage;
Conference_Titel :
Custom Integrated Circuits Conference, 1994., Proceedings of the IEEE 1994
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-1886-2
DOI :
10.1109/CICC.1994.379680
