Overview
The SN74LV540APW is a high-performance octal buffer and line driver manufactured by Texas Instruments. This integrated circuit is designed to provide robust signal buffering and driving capabilities in digital systems. It is part of the LV (Low-Voltage) family, which operates at lower voltage levels while maintaining high-speed performance. The SN74LV540APW is widely used in applications requiring signal isolation, level shifting, and enhanced drive strength. Its compact TSSOP (Thin Shrink Small Outline Package) form factor makes it suitable for space-constrained designs. Target users include engineers and designers in industrial automation, consumer electronics, and communication systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Technology Family | LV | - | Low-Voltage CMOS |
| Number of Channels | 8 | - | Octal |
| Supply Voltage Range | 2 V to 5.5 V | V | Wide operating range |
| Input Voltage Range | 0 V to VCC | V | Compatible with TTL levels |
| Output Current | ±12 | mA | High drive capability |
| Propagation Delay | 7.5 | ns | Typical at 5 V |
| Package Type | TSSOP | - | 20-pin |
| Operating Temperature Range | -40°C to 85°C | °C | Industrial grade |
Key Features
- Low-voltage operation (2 V to 5.5 V) for energy-efficient designs.
- Octal buffer with 3-state outputs for bus-oriented applications.
- High output current (±12 mA) for driving heavy loads.
- Compatible with TTL input levels for seamless integration.
- Fast propagation delay (7.5 ns typical) for high-speed applications.
- Compact TSSOP package for space-saving PCB layouts.
Applications
The SN74LV540APW is ideal for a wide range of applications, including:
- Industrial Automation: Signal buffering and level shifting in control systems.
- Consumer Electronics: Interface circuitry in smart devices and home appliances.
- Communication Systems: Bus driving and isolation in networking equipment.
- Automotive Electronics: Signal conditioning in vehicle control modules.
- Embedded Systems: General-purpose I/O expansion in microcontrollers.
Q & A
1. What is the operating voltage range of the SN74LV540APW?
The SN74LV540APW operates within a voltage range of 2 V to 5.5 V.
2. How many channels does the SN74LV540APW have?
It features 8 channels, making it an octal buffer and line driver.
3. What is the output current capability of the SN74LV540APW?
The device can source or sink up to ±12 mA per output.
4. Is the SN74LV540APW compatible with TTL levels?
Yes, it is fully compatible with TTL input levels.
5. What is the typical propagation delay of the SN74LV540APW?
The typical propagation delay is 7.5 ns at 5 V supply.
6. What package does the SN74LV540APW come in?
It is available in a 20-pin TSSOP package.
7. Can the SN74LV540APW be used in automotive applications?
Yes, it is suitable for automotive electronics, provided it operates within the specified temperature range.
8. What is the operating temperature range of the SN74LV540APW?
It operates from -40°C to 85°C, making it suitable for industrial environments.
9. Does the SN74LV540APW support 3-state outputs?
Yes, it features 3-state outputs for bus-oriented applications.
10. Where can I find the datasheet for the SN74LV540APW?
The datasheet is available on the official Texas Instruments website or authorized distributors like Digi-Key and Mouser.
