Lesson 1.2 Key Terms Introduction to Circuit Design

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Across
  1. 3. The amount of time required for one complete cycle of a periodic event or waveform.
  2. 4. Also called a NOT gate or an inverting buffer. A logic gate that changes its input logic level to the opposite state.
  3. 5. The instantaneous voltage of a waveform. Often used to mean maximum amplitude, or peak voltage, or a pulse.
  4. 7. An almost instantaneous rise and decay of voltage or current in a periodic pattern with time and with a constant peak value.
  5. 10. A piece of test equipment used to view and measure a variety of different waveforms.
  6. 11. A diagram, similar to a schematic, showing the connection of logic gates.
  7. 13. One in which amplitude varies in proportion to the sine function of an angle.
  8. 16. Type of flip-flop in which the D (data) input is the synchronous input.
  9. 17. Unit of frequency. One hertz equals one cycle per second.
  10. 19. The part of a pulse where the logic level is in transition from a HIGH to a LOW.
Down
  1. 1. TTL-compatible IC that can be wired to operate in several different modes, such as a one-shot and an astable multivibrator.
  2. 2. A series of logic 1s and 0s plotted as a function of time.
  3. 6. One style of integrated circuit package which has two rows of lead.Duty Cycle Fraction of the total period that a digital waveform is in the HIGH state. DC = th/T (often expressed as a percentage: %DC = th/Tx100%).
  4. 8. An algebraic expression made up of Boolean variables and operators, such as AND (-), OR (+), or NOT (-). Also referred to as Boolean function or a logic function.
  5. 9. A technique of entering CPLD design information by using a CAD (computer aided design) tool to draw a logic circuit as a schematic. The schematic can then be interpreted by design software to generate programming information for the CPLD.
  6. 12. An electronic circuit having many components, such as transistors, diodes, resistors, and capacitors, in a single package.
  7. 14. A sequential circuit based on a latch whose output changes when its CLOCK input receives a pulse.
  8. 15. Delay from the time a signal is applied to the time when the output makes its change.
  9. 18. The number of cycles per unit time of a periodic waveform.