Overview
The SN74LS240DWR is a high-performance octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments. This integrated circuit (IC) belongs to the Logic - Buffers, Drivers, Receivers, Transceivers category and is designed for applications requiring robust signal buffering and driving capabilities. The SN74LS240DWR is widely used in digital systems for its ability to interface between different logic levels while maintaining signal integrity. Its market positioning targets engineers and designers working on digital communication systems, industrial automation, and embedded systems. The product's unique selling points include its high-speed operation, low power consumption, and reliable 3-state output control, making it a competitive choice for various digital applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Buffer/Line Driver | - | Octal, 3-State |
| Number of Channels | 8 | - | - |
| Supply Voltage (VCC) | 4.75 to 5.25 | V | Typical 5V |
| Output Current | 15 | mA | High-Level Output |
| Propagation Delay Time | 15 | ns | Max at 5V |
| Operating Temperature | 0 to 70 | °C | - |
| Package / Case | SOIC-20 | - | Wide Body |
| Mounting Type | Surface Mount | - | - |
| RoHS Status | RoHS Compliant | - | - |
Key Features
- Octal Buffer/Line Driver: Provides eight independent buffer/driver channels for versatile signal management.
- 3-State Outputs: Allows multiple devices to share a common bus without interference.
- High-Speed Operation: Ensures minimal propagation delay for efficient signal transmission.
- Low Power Consumption: Optimizes energy efficiency in digital systems.
- Wide Operating Voltage Range: Supports reliable performance across varying supply voltages.
Applications
The SN74LS240DWR is ideal for a wide range of applications, including:
- Digital Communication Systems: Ensures signal integrity in data transmission and reception.
- Industrial Automation: Interfaces between control systems and peripheral devices.
- Embedded Systems: Provides buffering and driving capabilities in microcontroller-based designs.
- Computer Peripherals: Facilitates communication between CPUs and external devices.
- Automotive Electronics: Supports reliable signal management in vehicle control systems.
Q & A
1. What is the purpose of the 3-state outputs?
The 3-state outputs allow the device to be disconnected from the bus, enabling multiple devices to share the same bus without interference.
2. What is the maximum supply voltage for this IC?
The maximum supply voltage is 5.25V.
3. Is the SN74LS240DWR RoHS compliant?
Yes, the SN74LS240DWR is RoHS compliant.
4. What is the typical propagation delay time?
The typical propagation delay time is 15ns at 5V.
5. Can this IC be used in automotive applications?
Yes, it is suitable for automotive electronics, provided it operates within the specified temperature range.
6. What is the package type of the SN74LS240DWR?
It comes in an SOIC-20 (Wide Body) package.
7. How many channels does this IC have?
It has eight independent channels.
8. What is the operating temperature range?
The operating temperature range is 0°C to 70°C.
9. Is this IC suitable for surface mounting?
Yes, it is designed for surface mount applications.
10. What is the output current capability?
The high-level output current is 15mA.
