提出一种新型MOS开关模型,它基于MOS CSA模型,又具有path MOS模型特性。新模型采用了逻辑门一级的Time-mapping事件驱动算法,有利于采用并行模拟机硬件实现。新算法利用了path MOS模型路径法特性,因而克服了CSA方法中的LOOP问题。新算法中首次提出最大、最小信号强度传送及评价操作,克服了MOS电路逻辑模拟中存在的不定值X问题。 A new MOS switch model is proposed based on MOS CSA model and path MOS model. The new model uses a logic-level time-mapping event-driven algorithm, is conducive to the use of parallel hardware implementation of the simulator. The new algorithm takes advantage of the path MOS model path method, thus overcoming the LOOP problem in the CSA method. The new algorithm proposed the maximum and minimum signal strength transmission and evaluation operation for the first time, which overcomes the problem of indefinite value X existing in logic simulation of MOS circuits.