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Single-line  parallel  transfer  (direct  method)
LINEAR IC GATES

Fire Controlman Volume 03-Digital Data Systems
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Figure  4-28.—Example  of  a  single-line  parallel  displaced transfer. Displaced  —Displaced is also similar to the single-line parallel transfer except the set side outputs of the sending register are gated to the set side inputs of the receiving register one or more orders to the right or left. Refer to figure 4-28 as an example of a displaced transfer. Shift Registers.—A shift register has the ability to store information the same as the storage register; however it is designed to do more than just store information. A shift register is even more versatile than a storage register. The shift register is capable of receiving, rearranging, and retaining binary data that can be extracted for later use in the computer. It can receive  information  either  in  serial  or  parallel  form,  and information may be extracted in either serial or parallel form. When the information is extracted in serial form, it may be shifted to the right or left. The shifting is useful in many operations, such as multiplication, division, comparing binary bits, and sequencing a series of events. Remember, shift registers handle both serial and parallel information. Specifically, information can be moved in the following ways: Serial in-serial out right shift Serial in-parallel out left shift Parallel in-serial out left shift Parallel in-serial out right shift Figure 4-29 shows an example of a serial in-serial out right Shift. TOPIC 5—LINEAR IC’S Linear  circuits  are  amplifying-type  circuits  in integrated form. The term linear is simply another way Figure  4-29.—Example  of  a  serial  in-serial  out  right  shift register. of expressing the concept of regulating as opposed to switching, found in digital ICs. The output of a linear circuit changes in a smooth, even manner as the input is changed at a constant rate, so that a graph of output versus  input  is  approximately  a  straight  line;  hence,  the name linear. In contrast, the output of digital ICs jumps suddenly from one level to another. LINEAR IC FAMILY TYPES Linear ICs use bipolar and/or MOS technology. Among the different types of linear ICs you may encounter are the following: Bipolar BIFET—A combination of bipolar and junction field-effect transistor (JFET) technology Figure  4-30.—Example  of  a  Lin  CMOS—Silicon  gate MOSFET. 4-18






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