SN74AS158D

Product Overview

Category

SN74AS158D belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for data multiplexing applications.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL logic levels

Package

SN74AS158D is available in a 16-pin dual in-line package (DIP).

Essence

The essence of SN74AS158D lies in its ability to efficiently multiplex data signals, enabling the transmission of multiple data streams through a single channel.

Packaging/Quantity

SN74AS158D is typically packaged in reels or tubes and is available in various quantities depending on the supplier.

Specifications

• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage High Level: 2.0V to VCC
• Input Voltage Low Level: GND to 0.8V
• Output Voltage High Level: 2.4V (min)
• Output Voltage Low Level: 0.4V (max)

Detailed Pin Configuration

1. A0 - Data Input A
2. A1 - Data Input B
3. A2 - Data Input C
4. A3 - Data Input D
5. E - Enable Input
6. Y - Multiplexed Output
7. GND - Ground
8. B0 - Data Input E
9. B1 - Data Input F
10. B2 - Data Input G
11. B3 - Data Input H
12. E1 - Enable Input
13. Y1 - Multiplexed Output
14. VCC - Supply Voltage
15. B4 - Data Input I
16. B5 - Data Input J

Functional Features

SN74AS158D is a 4-line to 1-line data selector/multiplexer IC. It allows the selection of one out of four input lines based on the control inputs A0-A3 and E. The selected input is then transmitted to the output Y.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data transmission.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Compatibility with TTL logic levels ensures easy integration into existing systems.

Disadvantages

• Limited to 4-line to 1-line multiplexing, not suitable for larger-scale applications.
• Availability may vary depending on the supplier and market demand.

Working Principles

SN74AS158D operates by using the control inputs A0-A3 and E to select one of the four input lines (A, B, C, D) and transmit the selected data to the output Y. When the enable input E is high, the selected input is passed through to the output. When the enable input E is low, the output is in a high-impedance state.

Detailed Application Field Plans

SN74AS158D finds applications in various digital systems where data multiplexing is required. Some common application fields include: - Communication systems - Data acquisition systems - Industrial automation - Instrumentation - Consumer electronics

Detailed and Complete Alternative Models

• SN74AS157D: 4-line to 1-line data selector/multiplexer with inverted outputs
• SN74AS158N: Plastic dual in-line package version of SN74AS158D
• CD4052BE: CMOS analog/digital multiplexer/demultiplexer IC

These alternative models offer similar functionality and can be used as replacements for SN74AS158D in different applications.

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