Encyclopedia Entry: 74F253SCX

Product Overview

Category

The 74F253SCX belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for data multiplexing and demultiplexing applications.

Characteristics

• The 74F253SCX is a dual 4-input multiplexer/demultiplexer with tri-state outputs.
• It operates on a supply voltage range of 4.5V to 5.5V.
• This IC offers high-speed operation, making it suitable for use in time-critical applications.
• It has a wide operating temperature range, typically from -40°C to +85°C.

Package

The 74F253SCX is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of the 74F253SCX lies in its ability to efficiently multiplex and demultiplex data signals in digital systems.

Packaging/Quantity

This IC is typically sold in reels or tubes containing multiple units, with each reel or tube containing a specific quantity of the 74F253SCX ICs.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-16
• Logic Family: 74F
• Number of Inputs: 4
• Number of Outputs: 2
• Output Type: Tri-state

Detailed Pin Configuration

The 74F253SCX has 16 pins, which are assigned specific functions as follows:

1. A0: Input A0
2. B0: Input B0
3. C0: Input C0
4. D0: Input D0
5. GND: Ground
6. Y0: Output Y0
7. Y1: Output Y1
8. E1: Enable Input 1
9. E2: Enable Input 2
10. VCC: Supply Voltage
11. D1: Input D1
12. C1: Input C1
13. B1: Input B1
14. A1: Input A1
15. NC: No Connection
16. GND: Ground

Functional Features

The 74F253SCX offers the following functional features:

• Dual 4-input multiplexer/demultiplexer with tri-state outputs.
• Allows selection between two sets of four data inputs.
• The output can be enabled or disabled using the enable inputs (E1 and E2).
• Tri-state outputs provide high impedance when disabled, allowing multiple devices to share a common bus.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing in time-critical applications.
• Wide operating temperature range allows for reliable performance in various environments.
• Tri-state outputs facilitate bus sharing and reduce conflicts in multi-device systems.

Disadvantages

• Limited number of inputs and outputs may restrict its application in complex systems requiring more extensive data routing.

Working Principles

The 74F253SCX operates based on the principles of multiplexing and demultiplexing. It selects one of the two sets of four data inputs and routes it to the corresponding output based on the control signals provided by the enable inputs (E1 and E2). When the enable inputs are active, the selected input is passed through to the outputs. When the enable inputs are inactive, the outputs enter a high impedance state, effectively disconnecting them from the circuit.

Detailed Application Field Plans

The 74F253SCX finds applications in various digital electronic systems, including but not limited to:

1. Data communication systems
2. Multiplexing and demultiplexing circuits
3. Data routing and selection modules
4. Microcontroller-based systems
5. Industrial automation systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74F253SCX include:

1. 74HC253: High-speed CMOS logic family, dual 4-input multiplexer/demultiplexer.
2. CD4053: CMOS analog/digital multiplexer/demultiplexer with tri-state outputs.
3. SN54/74LS153: Dual 4-line to 1-line data selectors/multiplexers.

These alternative models can be considered based on specific requirements and compatibility with the target system.

In conclusion, the 74F253SCX is a versatile integrated circuit used for data multiplexing and demultiplexing applications. Its high-speed operation, wide temperature range, and tri-state outputs make it suitable for various digital electronic systems. However, its limited number of inputs and outputs may restrict its use in complex systems.