Digital Electronics - Vol 1 | 4. Logic Gates and Related Devices - Part B by Abraham | Learn Smarter
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4. Logic Gates and Related Devices - Part B

Universal gates like NAND and NOR can construct any boolean logic expression by combining themselves, which offers great flexibility in circuit design. Gates with open collector or drain outputs allow for specific logic functions using external resistors, while tristate logic gates enable shared bus communications via an ENABLE input. Other gate types, such as AND-OR-INVERT and Schmitt gates, exhibit unique attributes for various applications in digital electronics.

Sections

  • 4.4

    Universal Gates

    Universal gates, specifically NAND and NOR gates, can individually implement any Boolean expression, making them fundamental in logic circuit design.

    Learning Practice

  • 4.5

    Gates With Open Collector/drain Outputs

    Open collector/drain gates require an external pull-up resistor to function correctly and can produce an ANDing operation through a common connection.

    Learning Practice

  • 4.6

    Tristate Logic Gates

    Tristate logic gates can exist in three states: logic '1', logic '0', and a high-impedance state, controlled by an ENABLE input.

    Learning Practice

  • 4.7

    And-Or-Invert Gates

    AND-OR and OR-AND gates are special types of logic gates used to implement sum-of-products and product-of-sums Boolean expressions.

    Learning Practice

  • 4.8

    Schmitt Gates

    Schmitt gates are logic gates that utilize two different threshold voltages to improve noise immunity and prevent erratic outputs from slow varying inputs.

    Learning Practice

  • 4.9

    Special Output Gates

    Special Output Gates provide both inverted and non-inverted outputs from a single gate, optimizing PCB space and reducing signal delays.

    Learning Practice

References

chapter 4 part B.pdf

Class Notes

Memorization

What we have learnt

  • NAND and NOR gates are univ...
  • Open collector and open dra...
  • Tristate logic gates can co...

Final Test

Revision Tests