The SN74LS04N is a hex inverter logic integrated circuit (IC) from the 74LS series, utilizing low power Schottky TTL (Transistor-Transistor Logic) technology. Here are the key details and characteristics of the SN74LS04N IC:

Key Specifications

1. Logic Family: 74LS (Low Power Schottky TTL)
2. Function: Hex Inverter (contains six independent inverters)
3. Package: 14-pin Dual Inline Package (DIP)
4. Operating Voltage: Typically 5V (4.75V to 5.25V)
5. Input Voltage:
   • Low-Level Input Voltage (V_IL): Max 0.8V
   • High-Level Input Voltage (V_IH): Min 2V
6. Output Voltage:
   • Low-Level Output Voltage (V_OL): Max 0.4V
   • High-Level Output Voltage (V_OH): Min 2.7V
7. Input Current: Typically a few microamperes (uA)
8. Output Current:
   • Low-Level Output Current (I_OL): 8mA
   • High-Level Output Current (I_OH): -0.4mA
9. Propagation Delay: Typically 8ns
10. Power Consumption: Low power due to Schottky technology

Functional Description

The SN74LS04N contains six independent inverter gates. Each gate performs the logical NOT operation, meaning the output is the opposite (inverted) of the input.

Pin Configuration

1. Pin 1: Input A1 (Inverter 1)
2. Pin 2: Output Y1 (Inverter 1)
3. Pin 3: Input A2 (Inverter 2)
4. Pin 4: Output Y2 (Inverter 2)
5. Pin 5: Input A3 (Inverter 3)
6. Pin 6: Output Y3 (Inverter 3)
7. Pin 7: GND (Ground)
8. Pin 8: Output Y4 (Inverter 4)
9. Pin 9: Input A4 (Inverter 4)
10. Pin 10: Output Y5 (Inverter 5)
11. Pin 11: Input A5 (Inverter 5)
12. Pin 12: Output Y6 (Inverter 6)
13. Pin 13: Input A6 (Inverter 6)
14. Pin 14: Vcc (Positive Power Supply)

Logic Diagram

For each inverter:

• Input: A
• Output: Y = NOT A (Logical NOT operation)

Truth Table

For each of the six inverters:

Applications

The SN74LS04N is used in various digital circuits for performing logical NOT operations. Some common applications include:

• Signal Inversion: Inverting the logic level of signals.
• Oscillator Circuits: Used in conjunction with other components to create oscillators.
• Logic Level Shifting: Converting between different logic levels.
• Buffering: Isolating different parts of a circuit.
• Pulse Shaping: Generating precise timing signals.

Features

• Low Power Consumption: Due to Schottky TTL technology.
• Fast Switching: With a typical propagation delay of 8ns.
• Ease of Use: Standard pin configuration and robust design.

The SN74LS04N is a fundamental building block in digital electronics, useful for both educational purposes and practical circuit designs due to its simplicity and reliability.