IEC 61691-8:20 21（E）定义了SystemC的模拟/混合信号扩展？，作为ANSI标准C++类 基于SystemC的库，用于系统和硬件设计，包括模拟/混合信号元素。SystemC AMS扩展的一般目的是为需要解决硬件和软件混合的复杂异构系统的设计人员和架构师提供C++标准。该标准建立在IEEE标准1666之上？-2011（SystemC语言参考手册），并将其扩展到创建模拟/混合信号、多学科模型，以同时模拟连续时间、离散时间和离散事件行为。 本标准作为双标识IEC-IEEE标准发布。

IEC 61691-8:2021(E) defines the Analog/Mixed-Signal extensions for SystemC？, as an ANSI standard C++ class
library based on SystemC for system and hardware design including analog/mixed-signal elements. 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 1666？-2011 (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.
This standard is published as a double logo IEC-IEEE standard.