This standard defines the Analog/Mixed-Signal extensions for SystemC?l@ as an ANSI standard C++ class library based on SystemC for system and hardware design including analog/mixed-signal elements. Purpose The general purpose of the SystemC AMS extensions is to provide a C++ standard for designers and architects@ who need to address complex heterogeneous systems that are a hybrid between hardware and software. This standard is built on the IEEE Std 16667-20112 (SystemC Language Reference Manual) and extends it to create analog/mixed-signal@ multi-disciplinary models to simulate continuous-time@ discrete-time@ and discrete-event behavior simultaneously. The specific purpose of this standard is to provide a precise and complete definition of the AMS class library@ so that a SystemC AMS implementation can be developed with reference to this standard alone. This standard is neither intended to serve as a user's guide nor to provide an introduction to AMS extensions in SystemC@ but does contain useful information for end users. 1 Systeme) is a registered trademark of the Accellera Systems Initiative. 2 lnformation on references can be found in Clause 2.