CD74HC253E

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multiplexer/Demultiplexer
• Characteristics: High-speed, CMOS logic, dual 4-to-1 multiplexer/demultiplexer
• Package: DIP (Dual In-line Package)
• Essence: CD74HC253E is a versatile IC that can be used as both a multiplexer and a demultiplexer. It provides high-speed operation and is based on CMOS logic technology.
• Packaging/Quantity: The CD74HC253E is typically sold in tubes or reels, with a quantity of 25 pieces per tube/reel.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature: -40°C to +85°C
• Propagation Delay: 12 ns (typical)
• Number of Inputs: 8
• Number of Outputs: 4

Pin Configuration

The CD74HC253E has a total of 16 pins, which are assigned specific functions as follows:

1. A1: Input A1
2. B1: Input B1
3. C1: Input C1
4. D1: Input D1
5. GND: Ground
6. D2: Input D2
7. C2: Input C2
8. B2: Input B2
9. A2: Input A2
10. Y1: Output Y1
11. Y2: Output Y2
12. Y3: Output Y3
13. Y4: Output Y4
14. VCC: Supply Voltage
15. OE: Output Enable
16. GND: Ground

Functional Features

• Dual 4-to-1 multiplexer/demultiplexer functionality
• High-speed operation suitable for various applications
• CMOS logic technology ensures low power consumption
• Wide operating voltage range allows compatibility with different systems
• Output enable (OE) pin for easy control of output state

Advantages and Disadvantages

Advantages: - Versatile functionality as both a multiplexer and a demultiplexer - High-speed operation enables efficient data processing - Low power consumption due to CMOS logic technology - Wide operating voltage range enhances compatibility - Output enable pin provides flexibility in controlling output state

Disadvantages: - Limited number of inputs and outputs (8 inputs, 4 outputs) - Propagation delay may affect real-time applications requiring immediate response

Working Principles

The CD74HC253E operates by selecting one of the four input lines based on the control inputs A1, A2, B1, and B2. When the appropriate control inputs are set, the selected input is routed to the corresponding output line (Y1, Y2, Y3, or Y4). The output enable (OE) pin can be used to disable the outputs when not needed.

Detailed Application Field Plans

The CD74HC253E can be applied in various fields where multiplexing or demultiplexing of signals is required. Some potential application areas include:

1. Data communication systems
2. Audio/video signal routing
3. Industrial automation
4. Instrumentation and measurement equipment
5. Telecommunications
6. Consumer electronics

Alternative Models

Here are some alternative models that offer similar functionality to the CD74HC253E:

1. SN74HC253N
2. MC74HC253N
3. CD74HCT253E
4. 74HC253D

These models can be considered as alternatives based on their compatibility, specifications, and availability.

In conclusion, the CD74HC253E is a versatile IC that serves as a dual 4-to-1 multiplexer/demultiplexer. It offers high-speed operation, low power consumption, and wide compatibility. With its various applications and alternative models, it provides flexibility for different design requirements.