SN74AHCT240NSR

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Low-Power, Octal Buffer/Line Driver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Buffering and driving signals in digital circuits
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay Time: 7 ns (typical)
• Output Current: ±6 mA
• Input Capacitance: 3 pF (typical)

Detailed Pin Configuration

The SN74AHCT240NSR has a total of 20 pins, which are assigned as follows:

1. A1 - Input A1
2. Y1 - Output Y1
3. A2 - Input A2
4. Y2 - Output Y2
5. A3 - Input A3
6. Y3 - Output Y3
7. GND - Ground
8. Y4 - Output Y4
9. A4 - Input A4
10. Y5 - Output Y5
11. A5 - Input A5
12. Y6 - Output Y6
13. A6 - Input A6
14. Y7 - Output Y7
15. A7 - Input A7
16. Y8 - Output Y8
17. OE - Output Enable
18. VCC - Power Supply
19. B1 - Input B1
20. B2 - Input B2

Functional Features

• Octal buffer/line driver with 3-state outputs
• Non-inverting outputs
• High-speed operation
• Low power consumption
• TTL compatible inputs
• Balanced propagation delays

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient signal buffering - Low power consumption helps in reducing overall power requirements - TTL compatibility ensures easy integration with existing digital circuits - Balanced propagation delays ensure accurate signal transmission

Disadvantages: - Limited output current may restrict usage in certain applications - Restricted operating temperature range (-40°C to +85°C) may limit its use in extreme environments

Working Principles

The SN74AHCT240NSR is an octal buffer/line driver that operates by receiving input signals and providing buffered outputs. The device features 3-state outputs, allowing the outputs to be disabled or put into a high-impedance state when not required. This enables multiple devices to share a common bus without interfering with each other.

The inputs are TTL compatible, meaning they can directly interface with TTL logic levels. The non-inverting outputs provide an exact replica of the input signals, ensuring signal integrity is maintained throughout the circuit.

Detailed Application Field Plans

The SN74AHCT240NSR is commonly used in various digital systems where buffering and driving of signals is required. Some application fields include:

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

Detailed and Complete Alternative Models

1. SN74AHCT244N: Octal Buffer/Line Driver with 3-State Outputs
2. SN74AHCT125N: Quad Bus Buffer Gates with 3-State Outputs
3. SN74AHCT573N: Octal Transparent D-Type Latches with 3-State Outputs
4. SN74AHCT1G125DBVR: Single Bus Buffer Gate with 3-State Output

These alternative models offer similar functionality and can be used as substitutes for the SN74AHCT240NSR in various applications.

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