SN74HC158N

Product Overview

Category: Integrated Circuit (IC)

Use: The SN74HC158N is a quad 2-input multiplexer IC, commonly used in digital electronics circuits. It allows the selection of one out of four input signals to be routed to a single output line.

Characteristics: - High-speed operation - Low power consumption - Wide operating voltage range - Schmitt-trigger inputs for noise immunity - Compatible with TTL and CMOS logic levels

Package: DIP (Dual In-line Package)

Essence: The SN74HC158N is an essential component in electronic devices that require signal routing and selection capabilities. It simplifies circuit design by providing a compact solution for multiplexing applications.

Packaging/Quantity: The SN74HC158N is typically available in tubes or reels, containing 25 or 250 units respectively.

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 12 ns (max)
• Input Capacitance: 3.5 pF (typ)
• Output Current: ±6 mA

Pin Configuration

The SN74HC158N has a total of 16 pins, which are assigned as follows:

1. A Input 1
2. B Input 1
3. Y Output 1
4. GND (Ground)
5. A Input 2
6. B Input 2
7. Y Output 2
8. E Enable Input
9. A Input 3
10. B Input 3
11. Y Output 3
12. VCC (Supply Voltage)
13. A Input 4
14. B Input 4
15. Y Output 4
16. GND (Ground)

Functional Features

• Quad 2-input multiplexer functionality
• Selects one of the four input signals based on the control inputs
• High-speed operation allows for efficient signal routing
• Schmitt-trigger inputs provide noise immunity and enhanced signal integrity
• Wide operating voltage range enables compatibility with various systems

Advantages and Disadvantages

Advantages: - Compact and versatile solution for signal routing applications - Low power consumption enhances energy efficiency - Compatible with both TTL and CMOS logic levels, ensuring broad compatibility - Schmitt-trigger inputs improve noise immunity and signal quality

Disadvantages: - Limited to quad 2-input multiplexing functionality - Propagation delay time may affect real-time applications with strict timing requirements

Working Principles

The SN74HC158N operates by selecting one of the four input signals (A1, B1, A2, B2, A3, B3, A4, B4) based on the control inputs (E). The selected input is then routed to the corresponding output line (Y1, Y2, Y3, Y4). The IC utilizes internal circuitry to perform this selection process efficiently.

Detailed Application Field Plans

The SN74HC158N finds application in various fields, including but not limited to:

1. Digital Multiplexing: Used in digital systems to select and route specific input signals to the desired output line.
2. Data Communication: Enables signal routing in data communication systems, such as routers and switches.
3. Industrial Automation: Facilitates signal selection and routing in industrial automation equipment, improving system efficiency.
4. Test and Measurement: Utilized in test equipment to switch between different input signals for analysis and measurement purposes.

Detailed and Complete Alternative Models

1. CD74HC157E: Similar quad 2-input multiplexer IC with identical pin configuration and functionality.
2. MC74HC157AN: Another alternative offering quad 2-input multiplexing capabilities, compatible with TTL logic levels.
3. SN74LS157N: Quad 2-line to 1-line data selectors/multiplexers with similar pin configuration and functionality.

These alternative models provide similar functionality to the SN74HC158N and can be used as substitutes in various applications.

In conclusion, the SN74HC158N is a versatile quad 2-input multiplexer IC that offers high-speed operation, low power consumption, and compatibility with TTL and CMOS logic levels. Its compact package and wide operating voltage range make it suitable for a range of digital electronics applications.