The IA186EM/188EM is a form, fit, and function replacement for the original Advanced Micro Devices Am186EM/188EM family of microcontrollers. innov ASIC produces replacement ICs using its MILESTM, or Managed IC Lifetime Extension System, cloning technology. This technology produces replacement ICs far more complex than "emulation" while ensuring they are compatible with the original IC. MILESTM captures the design of a clone so it can be produced even as silicon technology advances. MILESTM also verifies the clone against the original IC so that even the "undocumented features" are duplicated. This Advance Information Sheet contains preliminary information for the IA186EM/188EM. The complete data sheet which documents all necessary engineering information about the IA186EM/188EM including functional and I/O descriptions, electrical characteristics, and applicable timing will be available when the device nears completion.