Downloads Download SPISim Products: Step 1. [Recommended] Subscribe to get monthly updates: E-Mail: Step 2. Verify then download: * Check: Click on the product image for more product details. SPILite/SPIPro: Windows installer 64 bit version (~170MB) Windows installer 32 bit version (~170MB) Linux zip bundle 64 bit version (~150MB) Mac OSX Application .dmg file (~300MB) Note: SPIPro functions are enabled with purchased license SPILite is free to use and upgrade Patches are released monthly. Major upgrade is released annually in Dec. SPISimProxy AMI model: A zip bundle containing builds for all platforms Example file, see "README.txt" after unzip SPISimAMI model driver: Windows executable 64 bit version Windows executable 32 bit version Linux executable 64 bit version Linux executable 32 bit version Note: Run executable without any argument to show usage info Linux builds are based on kernel version 4.4 (e.g. Ubuntu 16.04 LTS) Example models can be downloaded [HERE], read "README.txt" after unzip. SSolver circuit simulator: Windows executable Linux executable 64 bit version Note: This is essentially free NgSpice simulator compiled by us. No usage limitation when only NgSpice built-in devices are used. It has system device models developed by us fully integrated. Limited to six system devices (IBIS, TLine, S-param, PRBS) without license Example decks can be downloaded [HERE], read "README.txt" after unzip.