摘要： DS1267 是具有"移位寄存器"类型串行接口的双数字电位器。凡在转移数据输入的 pin，以及输出引脚，转移的最后一位移位寄存器的数据被写入时移位寄存器。这将允许多个 DS1267s，菊花在同一串行总线上一起编程。该应用程序说明介绍了如何完成此电路实例与伪代码示例演示如何制定任何微处理器的代码。Maxim > App Notes > DIGITAL POTENTIOMETERS GENERAL ENGINEERING TOPICS Keywords: DS1267, digital potentiometers, digipot, digital pots, Xicor Mar 29, 2001 APPLICATION NOTE 409 Using Multiple DS1267 Digital Potentiometers With an 8051 Microprocessor Generating 3-Wire Signals Abstract: The DS1267 is a dual digital potentiometer with a serial "shift register" type interface. The shift register has an input pin where data is shifted in as well as an output pin which shifts data out of the last bit of the shift register when being written. This allows multiple DS1267s to be daisy-chained together and programmed together on the same serial bus. The application note describes how to accomplish this with circuit examples and pseudo code examples showing ……