SN74AHC240PW

Product Overview

• Category: Integrated Circuit
• Use: Logic Gate Buffer/Driver
• Characteristics: High-Speed, Low-Power, Octal Buffer/Driver with 3-State Outputs
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: This integrated circuit is designed to provide high-speed buffering and driving capabilities for digital signals. It features eight buffer/driver channels with 3-state outputs.
• Packaging/Quantity: The SN74AHC240PW is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage: 2 V to 5.5 V
• Input Voltage: 0 V to VCC
• Output Voltage: 0 V to VCC
• Operating Temperature Range: -40°C to +85°C
• Propagation Delay: 6 ns (typical)
• Output Current: ±8 mA

Detailed Pin Configuration

The SN74AHC240PW has a total of 20 pins, which are 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. A5 (Input A5)
11. Y5 (Output Y5)
12. A6 (Input A6)
13. Y6 (Output Y6)
14. A7 (Input A7)
15. Y7 (Output Y7)
16. A8 (Input A8)
17. Y8 (Output Y8)
18. OE (Output Enable)
19. VCC (Supply Voltage)
20. GND (Ground)

Functional Features

• Octal buffer/driver with 3-state outputs
• High-speed operation
• Low power consumption
• Schmitt-trigger inputs for noise immunity
• Overvoltage-tolerant inputs and outputs
• ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient signal buffering and driving. - Low power consumption makes it suitable for battery-powered devices. - Schmitt-trigger inputs provide noise immunity, ensuring reliable operation. - Overvoltage-tolerant inputs and outputs protect the circuit from voltage spikes. - ESD protection safeguards against electrostatic discharge.

Disadvantages: - Limited output current may not be sufficient for certain applications. - The TSSOP package may require specialized equipment for soldering.

Working Principles

The SN74AHC240PW operates by receiving digital input signals on its eight input channels (A1 to A8). These signals are then buffered and amplified by the internal circuitry. The output channels (Y1 to Y8) can be enabled or disabled using the OE (Output Enable) pin. When the OE pin is high, the outputs are in a high-impedance state, allowing other devices to drive the bus lines.

Detailed Application Field Plans

The SN74AHC240PW is commonly used in various digital systems where buffering and driving of signals is required. Some typical application fields include:

1. Microcontrollers and microprocessors
2. Communication systems
3. Data acquisition systems
4. Industrial automation
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

1. SN74AHC240N: DIP (Dual In-Line Package) version of the SN74AHC240PW.
2. SN74AHC240D: SOIC (Small Outline Integrated Circuit) version of the SN74AHC240PW.
3. SN74AHC240RGYR: VQFN (Very Thin Quad Flat No-Lead) version of the SN74AHC240PW.

These alternative models offer similar functionality but may differ in package type and pin configuration.

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