SN74AC240NSR

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Low-Power, Octal Buffer/Driver with 3-State Outputs
• Package: 20-pin Small Outline Integrated Circuit (SOIC)
• Essence: The SN74AC240NSR is a versatile buffer/driver IC that provides high-speed signal amplification and driving capabilities for digital circuits.
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage: 2V to 6V
• Logic Family: AC
• Number of Channels: 8
• Output Type: 3-State
• Propagation Delay: 4.5 ns (typical)
• Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AC240NSR has a total of 20 pins, which are assigned as follows:

1. A1: Input 1
2. Y1: Output 1
3. A2: Input 2
4. Y2: Output 2
5. GND: Ground
6. A3: Input 3
7. Y3: Output 3
8. A4: Input 4
9. Y4: Output 4
10. VCC: Supply Voltage
11. A5: Input 5
12. Y5: Output 5
13. A6: Input 6
14. Y6: Output 6
15. A7: Input 7
16. Y7: Output 7
17. A8: Input 8
18. Y8: Output 8
19. OE: Output Enable
20. GND: Ground

Functional Features

• High-speed signal buffering and driving capabilities
• 3-state outputs for bus-oriented applications
• Wide operating voltage range for compatibility with various digital systems
• Low power consumption for energy-efficient designs
• ESD protection on all inputs and outputs for enhanced reliability

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data transfer - Versatile 3-state outputs enable easy integration into bus systems - Low power consumption reduces energy costs - ESD protection ensures reliable performance in harsh environments

Disadvantages: - Limited number of channels (8) may not be sufficient for complex applications requiring more inputs/outputs - Operating temperature range (-40°C to 85°C) may not be suitable for extreme temperature conditions

Working Principles

The SN74AC240NSR operates based on the principles of digital logic. It receives input signals through its eight input pins (A1-A8) and amplifies them using internal buffer circuits. The amplified signals are then available at the corresponding output pins (Y1-Y8). 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 SN74AC240NSR is widely used in various digital systems and applications, including:

1. Microprocessors and microcontrollers
2. Memory modules
3. Data communication systems
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Its high-speed operation, low power consumption, and 3-state outputs make it suitable for applications that require signal buffering, driving, and bus interfacing.

Detailed and Complete Alternative Models

1. SN74ACT240NSR: Similar to SN74AC240NSR but operates at higher speeds.
2. SN74HC240NSR: Compatible with CMOS logic levels and operates at lower speeds.
3. SN74LVC240NSR: Low-voltage version with reduced power consumption.

These alternative models offer similar functionality but may have different characteristics, such as operating voltage range and speed, to cater to specific application requirements.

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