Encyclopedia Entry: 74ABT657PW,118

Product Information

Category

The 74ABT657PW,118 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as data multiplexing and demultiplexing.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL input/output levels
• Schmitt-trigger action on all inputs

Package

The 74ABT657PW,118 is available in a small-outline package (SO) with 24 pins.

Essence

The essence of this product lies in its ability to efficiently handle data multiplexing and demultiplexing tasks in digital systems.

Packaging/Quantity

The 74ABT657PW,118 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 4.5V 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: 3.5ns (max)
• Output Current: ±32mA

Pin Configuration

The pin configuration of the 74ABT657PW,118 is as follows:

┌───┬───┐ 1 │ └ │ 24 2 │ │ 23 3 │ │ 22 4 │ │ 21 5 │ │ 20 6 │ │ 19 7 │ │ 18 8 │ │ 17 9 │ │ 16 10 │ │ 15 11 │ │ 14 12 │ │ 13 └───┴───┘

Functional Features

• Eight data inputs (D0-D7) for multiplexing
• Three select inputs (S0-S2) to control the multiplexing operation
• Output enable input (OE) to enable/disable the outputs
• Two output groups (Y0-Y3 and Y4-Y7) for demultiplexing

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data handling
• Low power consumption helps in reducing overall system energy requirements
• Wide operating voltage range provides flexibility in various applications
• Compatibility with TTL input/output levels ensures easy integration into existing systems
• Schmitt-trigger action on all inputs improves noise immunity

Disadvantages

• Limited number of output groups may restrict certain complex applications
• Propagation delay time may affect real-time applications requiring immediate response

Working Principles

The 74ABT657PW,118 operates based on the principles of digital multiplexing and demultiplexing. It takes multiple data inputs and selects one of them based on the control inputs (S0-S2). The selected data is then routed to the corresponding output group (Y0-Y3 or Y4-Y7) for further processing. The output enable input (OE) allows the user to enable or disable the outputs as required.

Detailed Application Field Plans

The 74ABT657PW,118 finds applications in various fields, including:

1. Communication Systems: Used for data routing and switching in telecommunication networks.
2. Data Acquisition Systems: Enables multiplexing and demultiplexing of sensor data in industrial monitoring systems.
3. Test and Measurement Equipment: Facilitates signal routing and selection in testing and measurement setups.
4. Digital Audio/Video Systems: Supports data multiplexing and demultiplexing in audio/video signal processing.

Detailed Alternative Models

Some alternative models that offer similar functionality to the 74ABT657PW,118 include:

1. SN74LS157: A TTL logic IC with quad 2-line to 1-line data selectors/multiplexers.
2. CD4051B: A CMOS analog multiplexer/demultiplexer IC with eight channels.
3. MC14051B: A CMOS analog multiplexer/demultiplexer IC with eight channels and Schmitt-trigger inputs.

These alternative models can be considered based on specific application requirements and compatibility with existing systems.

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