CD74HCT253EG4

Product Overview

• Category: Integrated Circuit
• Use: Logic Multiplexer/Demultiplexer
• Characteristics: High-Speed, CMOS Technology
• Package: SOIC-16
• Essence: Logic IC for data routing and selection
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 3.15V (min), 5.25V (max)
• Low-Level Input Voltage: 0.35V (min), 1.5V (max)
• High-Level Output Voltage: 4.4V (min), 5.25V (max)
• Low-Level Output Voltage: 0.4V (min), 0.55V (max)
• Propagation Delay Time: 20ns (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The CD74HCT253EG4 has a total of 16 pins, which are assigned as follows:

1. A1 - Select Input A
2. B1 - Select Input B
3. C - Common Data Input/Output
4. GND - Ground
5. D - Data Input/Output
6. Y - Multiplexed Output
7. VCC - Positive Power Supply
8. A2 - Select Input A
9. B2 - Select Input B
10. NC - No Connection
11. D - Data Input/Output
12. Y - Multiplexed Output
13. GND - Ground
14. C - Common Data Input/Output
15. VCC - Positive Power Supply
16. NC - No Connection

Functional Features

The CD74HCT253EG4 is a dual 4-to-1 multiplexer/demultiplexer IC. It allows the selection of one out of four data inputs and routes it to a single output line. The selection is controlled by two select inputs (A and B). When both select inputs are low, the demultiplexer mode is activated, and the common data input (C) is routed to one of the four outputs (Y) based on the binary combination of the select inputs. In the multiplexer mode, the data inputs (D) are selected based on the binary combination of the select inputs and routed to the multiplexed output (Y).

Advantages and Disadvantages

Advantages: - High-speed operation - Wide supply voltage range - Low power consumption - Compact SOIC-16 package - Easy integration into digital circuits

Disadvantages: - Limited number of inputs and outputs - Requires external control signals for proper operation - Not suitable for high-frequency applications

Working Principles

The CD74HCT253EG4 operates based on CMOS technology. It utilizes a combination of logic gates and flip-flops to perform the multiplexing and demultiplexing functions. The select inputs control the routing of data between the inputs and outputs. The internal circuitry ensures that only one input is selected at a time, providing efficient data routing.

Detailed Application Field Plans

The CD74HCT253EG4 finds applications in various fields where data routing and selection are required. Some of the potential application areas include:

1. Data communication systems
2. Digital audio/video equipment
3. Industrial automation
4. Instrumentation and measurement devices
5. Automotive electronics
6. Consumer electronics

Alternative Models

There are several alternative models available in the market that offer similar functionality to the CD74HCT253EG4. Some popular alternatives include:

1. SN74HC153: Dual 4-to-1 Multiplexer/Demultiplexer, DIP-16 package
2. CD4052: Dual 4-channel Analog Multiplexer/Demultiplexer, PDIP-16 package
3. MC14051B: 8-channel Analog Multiplexer/Demultiplexer, SOIC-16 package
4. 74HC151: 8-to-1 Multiplexer, DIP-16 package

These alternative models can be considered based on specific requirements and compatibility with existing circuit designs.

In conclusion, the CD74HCT253EG4 is a versatile logic IC that provides efficient data routing and selection capabilities. Its high-speed operation, wide supply voltage range, and compact package make it suitable for various applications in different fields. However, it has limitations in terms of the number of inputs/outputs and may not be ideal for high-frequency applications.