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TITLE 19EDUCATION
PART 2TEXAS EDUCATION AGENCY
CHAPTER 127TEXAS ESSENTIAL KNOWLEDGE AND SKILLS FOR CAREER DEVELOPMENT AND CAREER AND TECHNICAL EDUCATION
SUBCHAPTER OSCIENCE, TECHNOLOGY, ENGINEERING, AND MATHEMATICS
RULE §127.748Digital Electronics (One Credit), Adopted 2015

    (G) explain when multiplexer/de-multiplexer pairs are most frequently used;

    (H) explain the purpose of using de-multiplexers in electronic displays that use multiple seven-segment displays;

    (I) identify the most commonly used method for handling negative numbers in digital electronics;

    (J) discuss the use of programmable logic devices and explain designs for which they are best suited; and

    (K) compare and contrast circuits implemented with programmable logic devices with circuits implemented with discrete logic.

  (11) The student understands and describes multiple types of sequential logic and various uses of sequential logic. The student is expected to:

    (A) explain the capabilities of flip-flop and transparent latch logic devices;

    (B) discuss synchronous and asynchronous inputs of flip-flops and transparent latches;

    (C) explore the use of flip-flops, including designing single event detection circuits, data synchronizers, shift registers, and frequency dividers;

    (D) explain how asynchronous counters are characterized and how they can be implemented;

    (E) explore the use of the asynchronous counter method to implement up counters, down counters, and modulus counters;

    (F) explain how synchronous counters are characterized and how they can be implemented;

    (G) explore the use of the synchronous counter method to implement up counters, down counters, and modulus counters;

    (H) describe a state machine;

    (I) identify common everyday devices that machines are used to control such as elevator doors, traffic lights, and combinational or electronic locks; and

    (J) discuss various ways state machines can be implemented.

  (12) The student explores microcontrollers, specifically their usefulness in real-world applications. The student is expected to:

    (A) demonstrate an understanding of the use of flowcharts as graphical organizers by technicians, computer programmers, engineers, and other professionals and the benefits of various flowcharting techniques;

    (B) develop an understanding of basic programming skills, including variable declaration, loops, and debugging;

    (C) identify everyday products that use microcontrollers such as robots, garage door openers, traffic lights, and home thermostats;

    (D) describe a servo motor;

    (E) explore the way microcontrollers sense and respond to outside stimuli;

    (F) explain why digital devices are only relevant if they can interact with the real world;

    (G) explain the importance of digital control devices, including microcontrollers in controlling mechanical systems; and

    (H) demonstrate an understanding that realistic problem solving with a control system requires the ability to interface analog inputs and outputs with a digital device.


Source Note: The provisions of this §127.748 adopted to be effective April 7, 2022, 47 TexReg 1677

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