74HC257D-Q100J

Product Overview

• Category: Integrated Circuit
• Use: Data Selector/Multiplexer
• Characteristics: High-speed, Low-power, Quad 2-input Multiplexer
• Package: SOIC-16
• Essence: A digital multiplexer that selects one of four data inputs and routes it to a single output line.
• Packaging/Quantity: Tape and Reel, 2500 pieces 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 +125°C
• Propagation Delay: 10 ns (typical)
• Maximum Quiescent Current: 4 µA
• Maximum Output Current: 25 mA

Pin Configuration

The 74HC257D-Q100J has a total of 16 pins. The pin configuration is as follows:

1. GND (Ground)
2. I0a (Input 0a)
3. I1a (Input 1a)
4. I2a (Input 2a)
5. I3a (Input 3a)
6. E (Enable)
7. I0b (Input 0b)
8. I1b (Input 1b)
9. I2b (Input 2b)
10. I3b (Input 3b)
11. Y (Output)
12. GND (Ground)
13. I3c (Input 3c)
14. I2c (Input 2c)
15. I1c (Input 1c)
16. I0c (Input 0c)

Functional Features

• Quad 2-input multiplexer with common select inputs (E)
• Selects one of the four data inputs (I0a, I1a, I2a, I3a) based on the select input
• Routes the selected data input to the output (Y)
• High-speed operation with low power consumption
• Wide operating voltage range

Advantages and Disadvantages

Advantages: - Fast propagation delay allows for high-speed data selection - Low quiescent current minimizes power consumption - Wide operating voltage range provides flexibility in various applications

Disadvantages: - Limited number of data inputs (four inputs) - Only one output line

Working Principles

The 74HC257D-Q100J is a digital multiplexer that operates based on the select input (E). When E is low, the outputs are in a high-impedance state. When E is high, one of the four data inputs (I0a, I1a, I2a, I3a) is selected based on the binary value of the control inputs (I0b, I1b, I2b, I3b). The selected data input is then routed to the output (Y).

Detailed Application Field Plans

The 74HC257D-Q100J can be used in various applications, including but not limited to:

1. Data routing and selection in microcontrollers and digital systems
2. Address decoding in memory systems
3. Multiplexing multiple data sources into a single output
4. Signal switching in communication systems
5. Input selection in audio/video equipment

Alternative Models

Here are some alternative models that provide similar functionality:

1. CD4051B: Analog Multiplexer/Demultiplexer IC
2. SN74LS151: 8-input Digital Multiplexer IC
3. MC14051B: CMOS Analog Multiplexer/Demultiplexer IC
4. 74HC153: Dual 4-input Multiplexer IC

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

In conclusion, the 74HC257D-Q100J is a high-speed, low-power quad 2-input multiplexer integrated circuit. It offers fast data selection, low power consumption, and wide operating voltage range. With its versatile applications and availability in tape and reel packaging, it is a reliable choice for various digital systems and microcontroller-based projects.