SN74AS240ADWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Gate
• Characteristics: Octal Buffer/Line Driver with 3-State Outputs
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: This IC is designed to provide buffering and line driving capabilities for digital signals.
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2V to VCC + 0.5V
• Low-Level Input Voltage: -0.5V to 0.8V
• High-Level Output Voltage: 2.7V (min)
• Low-Level Output Voltage: 0.5V (max)
• Maximum Operating Frequency: 40MHz
• Number of Inputs/Outputs: 8

Detailed Pin Configuration

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

Functional Features

• Octal buffer with 3-state outputs
• Non-inverting outputs
• High output drive capability
• 3-state outputs for bus-oriented applications
• TTL-compatible inputs and outputs

Advantages and Disadvantages

Advantages: - High output drive capability allows driving multiple loads - 3-state outputs enable easy bus sharing - TTL compatibility ensures compatibility with a wide range of digital systems

Disadvantages: - Limited operating frequency compared to some newer ICs - Requires external pull-up resistors for proper operation in certain applications

Working Principles

The SN74AS240ADWR is an octal buffer/line driver IC that provides non-inverting buffering and line driving capabilities. It operates on a supply voltage range of 4.5V to 5.5V and has TTL-compatible inputs and outputs. The IC features 3-state outputs, which allow multiple devices to share a common bus. When the output enable (OE) pin is high, the outputs are in a high-impedance state, effectively disconnecting them from the bus.

Detailed Application Field Plans

The SN74AS240ADWR is commonly used in various digital systems where buffering and line driving capabilities are required. Some application fields include:

1. Microprocessor Systems: The IC can be used to interface between the microprocessor and other peripheral devices, ensuring proper signal levels and driving capability.
2. Data Communication: It can be employed in data communication systems to amplify and drive signals along transmission lines, improving signal integrity.
3. Memory Systems: The IC can be utilized in memory systems to provide buffering and line driving functions for address and data buses.
4. Industrial Control Systems: It finds applications in industrial control systems where it can drive signals to control various actuators and sensors.

Detailed and Complete Alternative Models

1. SN74LS240: Octal Buffer/Line Driver with 3-State Outputs, TTL-compatible.
2. SN74HC240: Octal Buffer/Line Driver with 3-State Outputs, CMOS-compatible.
3. SN74LVC240: Octal Buffer/Line Driver with 3-State Outputs, Low-Voltage CMOS-compatible.

These alternative models offer similar functionality to the SN74AS240ADWR but may have different characteristics, operating voltages, or package options.

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