MC74ACT540DWR2G

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics: High-speed, Octal Buffer/Line Driver
• Package: SOIC-20
• Essence: The MC74ACT540DWR2G is a high-performance octal buffer and line driver designed for use in various logic level shifting applications.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Logic Family: ACT
• Number of Channels: 8
• Input Voltage: 2.0V to 6.0V
• Output Voltage: 2.0V to 6.0V
• Propagation Delay: 5.5ns (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MC74ACT540DWR2G has a total of 20 pins arranged as follows:

1. GND (Ground)
2. A1 (Input A1)
3. Y1 (Output Y1)
4. A2 (Input A2)
5. Y2 (Output Y2)
6. A3 (Input A3)
7. Y3 (Output Y3)
8. A4 (Input A4)
9. Y4 (Output Y4)
10. VCC (Power Supply)
11. OE (Output Enable)
12. Y5 (Output Y5)
13. A5 (Input A5)
14. Y6 (Output Y6)
15. A6 (Input A6)
16. Y7 (Output Y7)
17. A7 (Input A7)
18. Y8 (Output Y8)
19. GND (Ground)
20. VCC (Power Supply)

Functional Features

• Provides non-inverting buffer and line driver functions
• High-speed operation suitable for various applications
• Wide operating voltage range allows compatibility with different logic families
• Output enable (OE) pin for easy control of the output state
• 3-state outputs for bus-oriented applications

Advantages and Disadvantages

Advantages

• High-speed performance enables efficient data transmission
• Wide operating voltage range provides flexibility in system design
• 3-state outputs allow multiple devices to share a common bus
• Compact SOIC-20 package offers space-saving integration

Disadvantages

• Limited number of channels (8) may not be sufficient for certain applications requiring more inputs/outputs
• Propagation delay of 5.5ns may introduce timing issues in high-frequency applications

Working Principles

The MC74ACT540DWR2G operates by receiving input signals on its eight input pins (A1-A7) and buffering them to the corresponding output pins (Y1-Y8). The non-inverting nature of the buffer ensures that the output signal matches the input signal. The output enable (OE) pin controls the state of the outputs, allowing them to be either active or in a high-impedance state.

Detailed Application Field Plans

The MC74ACT540DWR2G is commonly used in various digital systems and communication interfaces where logic level shifting is required. Some specific application fields include:

1. Microcontroller interfacing
2. Data communication systems
3. Memory address decoding
4. Bus drivers and receivers
5. Industrial automation

Detailed and Complete Alternative Models

1. SN74ACT540DW: Similar octal buffer/line driver from Texas Instruments
2. CD74ACT540E: Octal buffer/line driver from ON Semiconductor
3. 74ACT540SCX: Octal buffer/line driver from Fairchild Semiconductor

These alternative models offer similar functionality and can be considered as substitutes for the MC74ACT540DWR2G.

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