SN74LS158DR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: TTL Logic, 4-to-1 Multiplexer
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: High-speed digital multiplexer
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage: 4.75V to 5.25V
• Input Voltage: 0V to Vcc
• Output Voltage: 0V to Vcc
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 9ns (typical)
• Input Capacitance: 3pF (typical)
• Output Current: ±8mA

Detailed Pin Configuration

The SN74LS158DR has a total of 16 pins. The pin configuration is as follows:

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

Functional Features

The SN74LS158DR is a 4-to-1 data selector/multiplexer IC. It allows the selection of one out of four input data lines based on the select inputs (A, B, C, D). The selected data is then routed to the output line (Y) based on the enable input. This IC operates on TTL logic levels and provides high-speed performance.

Advantages and Disadvantages

Advantages: - High-speed operation - TTL logic compatibility - Compact SOIC package - Wide operating temperature range

Disadvantages: - Limited number of input lines (4-to-1) - Requires external enable signal for proper operation

Working Principles

The SN74LS158DR works based on the principle of digital multiplexing. It uses the select inputs (A, B, C, D) to determine which input data line is connected to the output line (Y). The enable input controls the output state, allowing or blocking the selected data from reaching the output. This IC operates on TTL logic levels, ensuring reliable and fast data selection.

Detailed Application Field Plans

The SN74LS158DR finds applications in various fields where data selection and multiplexing are required. Some of the detailed application field plans include:

1. Data routing in communication systems
2. Address decoding in microprocessors
3. Input selection in audio/video equipment
4. Control signal routing in industrial automation
5. Multiplexing control signals in automotive electronics

Detailed and Complete Alternative Models

There are several alternative models available that serve similar functions as the SN74LS158DR. Some of the popular alternatives include:

1. CD4051B: 8-channel analog multiplexer/demultiplexer
2. 74HC153: Dual 4-input multiplexer
3. SN74HC151: 8-line to 1-line data selector/multiplexer
4. CD74HC4067: 16-channel analog multiplexer/demultiplexer
5. MC14051B: 8-channel analog multiplexer/demultiplexer

These alternative models offer different features and specifications, providing flexibility in selecting the most suitable IC for specific applications.

In conclusion, the SN74LS158DR is a high-speed 4-to-1 data selector/multiplexer IC. It offers reliable data routing capabilities and operates on TTL logic levels. With its compact package and wide operating temperature range, it finds applications in various fields such as communication systems, microprocessors, and audio/video equipment. Alternative models provide additional options for similar functions.