The device has several advantages such as adjustable wide current range, controllable wide voltage range, circuit interface compatible with TTL, small volume and easy modulation.
该器件不仅输出电流可调范围宽、允许工作电压变化范围大、电路接口与TTL兼容，而且体积小、调节方便。
This paper introduces the common category of digital integrated circuit, and research the interface transform technology among TTL? ECL? CMOS circuit one another.
介绍了常用的数字集成电路的种类，并对TTL、ECL、CMOS电路相互间的接口转换技术进行了研究。
The TTL video signal from PC is converted into R, G, B video signals through PC video interface circuit.
来自个人计算机（PC）的TTL视频信号由PC视频接口电路转换成R、G、B视频信号。
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