M6: Basic Digtal Logic Gates and it's Electronic Circuit Equivalent

Diode-Resistor Ckt of 2-input AND Gate:

Diode-Transistor Ckt of 2-input NAND Gate:

1. Cutoff Region → Transistor is OFF (no

current flows).

2. Active Region → Transistor is partially

ON, used for amplification.

3. Saturation Region → Transistor is fully

ON, used for switching.

3 Region:

Q-point (Quiescent Point)

The _________ is the steady-state operating point of a transistor when no input signal is applied.

• Collector current (ICQ)

• Collector–emitter voltage (VCEQ)

At the Q-point, it shows the DC value of:

Resistor-Transistor Logic NOT Gate Circuit & Symbol:

Illustrate 7404 Hex Inverting NOT Gate:

CD4069 Hex Inverting NOT Gate:

Resistor Transistor Logic YES Gate Circuit:

74LS07 Digital Buffer:

74LS244 Octal Tri-state Buffer:

Resistor Transistor Logic NOR Gate Circuit Ckt:

7402 Quad 2-input Logic NOR Gate

CD4001 Quad 2-input

Resistor Transistor Logic OR Gate Ckt:

2-input Transistor OR Gate Ckt:

7432 Quad 2-input Logic OR Gate:

CD4071 Quad 2-input:

Resistor Transistor Logic NAND Gate Ckt:

7400 Quad 2-input Logic NAND Gate:

CD4023 Triple 3-input

Resistor Transistor Logic AND Gate Ckt:

2-input Transistor AND Gate Ckt:

7408 Quad 2-input AND Gate:

CD4073 Triple 3-input