CD74HCT253M

Product Overview

• Category: Integrated Circuit (IC)
• Use: Multiplexer/Demultiplexer
• Characteristics: High-speed, CMOS logic, 3-state outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Digital logic IC for data routing and selection
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Logic Family: HCT
• Number of Inputs: 2
• Number of Outputs: 4
• Supply Voltage Range: 4.5V to 5.5V
• Propagation Delay: 15 ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The CD74HCT253M has a 16-pin SOIC package with the following pin configuration:

1. A1 - Input A1
2. B1 - Input B1
3. GND - Ground
4. A0 - Input A0
5. B0 - Input B0
6. Y0 - Output Y0
7. Y1 - Output Y1
8. Y2 - Output Y2
9. Y3 - Output Y3
10. VCC - Power Supply
11. S - Select Input
12. GND - Ground
13. C - Clock Input
14. GND - Ground
15. D - Data Input
16. GND - Ground

Functional Features

• The CD74HCT253M is a dual 4-input multiplexer with 3-state outputs.
• It allows the selection of one out of four data inputs based on the select input.
• The selected data is then routed to one of the four outputs.
• The 3-state outputs provide high impedance when disabled, allowing multiple devices to share the same bus.

Advantages and Disadvantages

Advantages: - High-speed operation - CMOS logic for low power consumption - 3-state outputs for bus sharing capability

Disadvantages: - Limited number of inputs and outputs - Requires external clock signal for operation

Working Principles

The CD74HCT253M operates based on the principle of digital multiplexing. It uses a select input to choose one of the four data inputs and routes it to the corresponding output. The device is controlled by a clock signal, which synchronizes the selection process. The 3-state outputs allow multiple devices to be connected to the same bus without interference.

Detailed Application Field Plans

The CD74HCT253M can be used in various applications, including:

1. Data routing and selection in digital systems.
2. Address decoding in memory systems.
3. Input/output expansion in microcontrollers.
4. Bus switching and multiplexing in communication systems.
5. Control signal routing in industrial automation.

Detailed and Complete Alternative Models

Some alternative models that serve similar functions to the CD74HCT253M are:

1. 74HC153 - Dual 4-input multiplexer with non-inverting outputs.
2. CD4052 - Dual 4-channel analog multiplexer/demultiplexer.
3. SN74LS157 - Quad 2-line to 1-line data selectors/multiplexers.
4. CD74HC4067 - 16-channel analog multiplexer/demultiplexer.

These alternative models offer different features and specifications, providing flexibility in choosing the most suitable IC for specific applications.

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