SN74LV157APWRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multiplexer
• Characteristics: Low-voltage, Quad 2-input multiplexer
• Package: TSSOP-16
• Essence: Logic gate that selects one of four input signals and routes it to a single output
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 6.5ns (typical)
• Maximum Quiescent Current: 10µA
• Maximum Input Current: ±1µA
• Maximum Output Current: ±8mA

Detailed Pin Configuration

The SN74LV157APWRE4 has a total of 16 pins, which are assigned as follows:

1. A Input 1
2. B Input 1
3. Y Output 1
4. G Input (Enable)
5. A Input 2
6. B Input 2
7. Y Output 2
8. GND (Ground)
9. Y Output 3
10. C Input 1
11. D Input 1
12. Y Output 4
13. C Input 2
14. D Input 2
15. VCC (Supply Voltage)
16. NC (No Connection)

Functional Features

• Quad 2-input multiplexer with common select inputs (A and B)
• Enables selection of one of the four input signals (C and D) based on the select inputs
• Outputs the selected signal at the corresponding output (Y)

Advantages and Disadvantages

Advantages: - Low-voltage operation allows for compatibility with a wide range of systems - Compact TSSOP-16 package saves board space - Low quiescent current minimizes power consumption - Fast propagation delay time ensures quick signal routing

Disadvantages: - Limited to selecting one signal from four inputs at a time - Not suitable for applications requiring more complex multiplexing functionality

Working Principles

The SN74LV157APWRE4 operates based on the principles of digital logic. The select inputs (A and B) determine which input signal (C or D) is routed to the corresponding output (Y). When the enable input (G) is high, the selected input is passed through to the output. If the enable input is low, the output remains in a high-impedance state.

Detailed Application Field Plans

The SN74LV157APWRE4 is commonly used in various applications, including:

1. Data Multiplexing: Selecting between multiple data sources for processing or transmission.
2. Address Decoding: Choosing specific memory locations or peripheral devices based on address inputs.
3. Signal Routing: Directing signals to different components or subsystems in a circuit.
4. Control Systems: Switching between different control signals to activate specific functions.

Detailed and Complete Alternative Models

1. CD74HC157E: High-speed CMOS Quad 2-input multiplexer with similar specifications and pin configuration.
2. MC74HC157AN: Quad 2-input multiplexer with TTL-compatible inputs and outputs.
3. 74HCT157N: Quad 2-input multiplexer with Schmitt-trigger inputs for improved noise immunity.

These alternative models offer similar functionality and can be considered as substitutes for the SN74LV157APWRE4 depending on specific requirements.

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