SN74HC253D

Product Overview

• Category: Integrated Circuit
• Use: Multiplexer/Demultiplexer
• Characteristics: High-speed, low-power consumption
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Dual 4-to-1 multiplexer/demultiplexer
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2V to 6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 10ns (typical)
• Maximum Quiescent Current: 8µA

Detailed Pin Configuration

The SN74HC253D has a total of 16 pins. The pin configuration is as follows:

1. A1: Multiplexer/Demultiplexer Select Input A
2. B1: Multiplexer/Demultiplexer Select Input B
3. Y1: Multiplexer/Demultiplexer Output Y1
4. GND: Ground
5. Y2: Multiplexer/Demultiplexer Output Y2
6. B2: Multiplexer/Demultiplexer Select Input B
7. A2: Multiplexer/Demultiplexer Select Input A
8. VCC: Positive Power Supply
9. I/O1a: Multiplexer/Demultiplexer Data Input/Output 1a
10. I/O1b: Multiplexer/Demultiplexer Data Input/Output 1b
11. I/O2a: Multiplexer/Demultiplexer Data Input/Output 2a
12. I/O2b: Multiplexer/Demultiplexer Data Input/Output 2b
13. I/O3a: Multiplexer/Demultiplexer Data Input/Output 3a
14. I/O3b: Multiplexer/Demultiplexer Data Input/Output 3b
15. I/O4a: Multiplexer/Demultiplexer Data Input/Output 4a
16. I/O4b: Multiplexer/Demultiplexer Data Input/Output 4b

Functional Features

• Dual 4-to-1 multiplexer/demultiplexer functionality
• High-speed operation for efficient data processing
• Low-power consumption for energy efficiency
• Wide supply voltage range for versatile applications
• Compatible with TTL and CMOS logic levels
• Schmitt-trigger inputs for noise immunity

Advantages and Disadvantages

Advantages: - Versatile multiplexer/demultiplexer solution - High-speed operation allows for quick data switching - Low-power consumption reduces energy usage - Wide supply voltage range enables compatibility with various systems - Schmitt-trigger inputs provide reliable performance in noisy environments

Disadvantages: - Limited number of input/output channels (4) - Not suitable for applications requiring a higher number of channels - May require additional components for complex circuit designs

Working Principles

The SN74HC253D is a dual 4-to-1 multiplexer/demultiplexer integrated circuit. It allows the selection of one out of four input signals to be routed to the output, or the routing of one input signal to any of the four outputs. The selection is controlled by the A and B select inputs.

The device operates on a wide supply voltage range of 2V to 6V, making it compatible with various systems. It features high-speed operation with a propagation delay time of 10ns, allowing for efficient data processing. The low quiescent current of 8µA ensures minimal power consumption.

Detailed Application Field Plans

The SN74HC253D can be used in various applications, including:

1. Data multiplexing and demultiplexing in digital systems
2. Address decoding in memory systems
3. Signal routing in communication systems
4. Input/output expansion in microcontroller-based systems
5. Logic level conversion between different voltage domains

Detailed and Complete Alternative Models

• CD74HC253E: Dual 4-to-1 Multiplexer/Demultiplexer, DIP package
• SN74LS253N: Dual 4-to-1 Multiplexer/Demultiplexer, PDIP package
• MC74HC253AN: Dual 4-to-1 Multiplexer/Demultiplexer, DIP package
• 74HCT253: Dual 4-to-1 Multiplexer/Demultiplexer, SOIC package

These alternative models offer similar functionality to the SN74HC253D and can be considered as replacements based on specific requirements.

In conclusion, the SN74HC253D is a versatile dual 4-to-1 multiplexer/demultiplexer integrated circuit. It offers high-speed operation, low-power consumption, and wide compatibility with various systems. Its