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Logical Electronic ==>

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Memory : Memory With Moving Parts

Memory : Read-Only Memory

Memory : Historical,Nonmechanical Memory Technologies

Memory : Modern Nonmechanical Memory

Memory : Digital Memory Terms And Concepts

Memory : Why Digital?

DIP Gate Packaging

Constructing The NOR Function

Constructing The OR Function

Constructing The NAND Function

Constructing The AND Function

Constructing The "Buffer" Function

Constructing The NOT Function

Tristate Buffer Gate

Special Output Gates

CMOS Bilateral Switch

Buffered And Unbuffered Gates

CMOS OR Gate

CMOS NOR Gate

CMOS AND Gate

CMOS NAND Gate

CMOS Gate Circuitry

Negative Binary Numbers

Binary Addition

Sequential Logic Devices

Boolean Algebra

Digital Computing

Up Down Counter Application

Synchronous Counters

Asynchronous Counters

Binary Count Sequence

Special Output Gates

TTL NOR And OR Gates

TTL NAND And AND Gates

The Negative-OR Gate

The Negative-AND Gate

The NOR Gate

Exclusive-NOR (XNOR) Gate

Switching Logic And Circuits

Hexadecimal Numbers System

Logic - Binary Functions

The Exclusive-OR ( XOR ) Gate

The NAND Gate

The NOT Gate

The OR Gate

The AND Gate

Digital Logic Electronic

47 topics total

Memory : Read-Only Memory

Memory : Historical,Nonmechanical Memory Technologies

Memory : Modern Nonmechanical Memory

Memory : Digital Memory Terms And Concepts

Memory : Why Digital?

DIP Gate Packaging

Constructing The NOR Function

Constructing The OR Function

Constructing The NAND Function

Constructing The AND Function

Constructing The "Buffer" Function

Constructing The NOT Function

Tristate Buffer Gate

Special Output Gates

CMOS Bilateral Switch

Buffered And Unbuffered Gates

CMOS OR Gate

CMOS NOR Gate

CMOS AND Gate

CMOS NAND Gate

CMOS Gate Circuitry

Negative Binary Numbers

Binary Addition

Sequential Logic Devices

Boolean Algebra

Digital Computing

Up Down Counter Application

Synchronous Counters

Asynchronous Counters

Binary Count Sequence

Special Output Gates

TTL NOR And OR Gates

TTL NAND And AND Gates

The Negative-OR Gate

The Negative-AND Gate

The NOR Gate

Exclusive-NOR (XNOR) Gate

Switching Logic And Circuits

Hexadecimal Numbers System

Logic - Binary Functions

The Exclusive-OR ( XOR ) Gate

The NAND Gate

The NOT Gate

The OR Gate

The AND Gate

Digital Logic Electronic

47 topics total

**The NAND Gate**

The NAND gate is the-most difficult to understand. All the-others are English words, so they-are easier to understand. thething about NOR & NAND gates is that-they are like OR or AND gates, followed-immediately by a NOT gate. .So if you find them just to difficult, you can always remember them like that.

Output *Q *= 0 if and only if* A=B=1.*

A |
B |
Q |

0 |
0 |
1 |

0 |
1 |
1 |

0 |
0 |
1 |

0 |
1 |
0 |

When asked to find a truth table for a circuit, it can-sometimes be helpful to use extra letters. These are usually X & Y, but any-letters can be used. The easiest way-would be to look at the gate below.

The gates above are the-only gates you need to-know for the NEAB syllabus. But there is one other gate that is very useful. It is-called the eXclusive OR (XOR). You can buy-this in a chip, or you can build-your own. It can be constructed in the following way.

Keywords : NAND, Gate, NOR Gate, Gate, Decimal, Binary, Hexodecimal, Logic Gates

17 Mar 2006 Fri

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