SN74HC253DT

Product Overview

Category

SN74HC253DT belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronic systems for data multiplexing and demultiplexing.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Schmitt-trigger inputs for noise immunity
• Compatible with TTL and CMOS logic levels

Package

SN74HC253DT is available in a 16-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of SN74HC253DT lies in its ability to efficiently handle data multiplexing and demultiplexing tasks in digital circuits.

Packaging/Quantity

SN74HC253DT is typically packaged in reels or tubes, with each reel containing 2500 units.

Specifications

• Supply Voltage: 2V to 6V
• Input Voltage: 0V to VCC
• Output Voltage: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 15ns (max)
• Output Current: ±25mA

Detailed Pin Configuration

1. A0 (Input A0)
2. A1 (Input A1)
3. B (Input B)
4. GND (Ground)
5. Y0 (Output Y0)
6. Y1 (Output Y1)
7. G (Enable Input G)
8. VCC (Supply Voltage)
9. Y2 (Output Y2)
10. Y3 (Output Y3)
11. C (Input C)
12. D (Input D)
13. A (Input A)
14. B (Input B)
15. GND (Ground)
16. Y (Output Y)

Functional Features

SN74HC253DT is a dual 4-to-1 data selector/multiplexer with 3-state outputs. It allows the selection of one out of four data inputs (A, B, C, D) based on the control inputs (A0, A1). The selected data is then available at the corresponding output pins (Y0, Y1, Y2, Y3). The enable input (G) controls the operation of the device.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data handling.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Schmitt-trigger inputs ensure noise immunity, enhancing reliability.

Disadvantages

• Limited number of data inputs and outputs restricts its application in complex systems.
• Propagation delay time may affect real-time applications requiring immediate response.

Working Principles

SN74HC253DT operates by using the control inputs (A0, A1) to select one of the four data inputs (A, B, C, D). The selected data is then routed to the corresponding output pins (Y0, Y1, Y2, Y3). The enable input (G) determines whether the device is active or in a high-impedance state.

Detailed Application Field Plans

SN74HC253DT finds applications in various digital electronic systems, including: 1. Data multiplexing/demultiplexing in microcontrollers and microprocessors. 2. Address decoding in memory systems. 3. Signal routing in communication systems. 4. Input/output expansion in embedded systems. 5. Control logic implementation in industrial automation.

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to SN74HC253DT are: 1. CD74HC253E 2. MC74HC253N 3. 74HC253D

These models offer similar functionality and characteristics, providing options for different design requirements.

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