SN74LV240APWR

The SN74LV240APWR is a high-speed, low-voltage, quad buffer/driver integrated circuit (IC) manufactured by Texas Instruments. It is part of the 74LV family of logic devices, which are designed to operate at lower voltage levels while maintaining high performance. Here’s a detailed description of its features and specifications:

General Description:

• Type: Quad Buffer/Driver
• Function: The SN74LV240A is designed to drive high capacitive loads and provide signal buffering. It can be used to isolate different parts of a circuit, improve signal integrity, and increase drive capability.

Key Features:

• Number of Channels: The device contains four independent buffer/driver channels, each capable of driving a load.
• Voltage Range: It operates with a supply voltage range of 2.0V to 5.5V, making it suitable for low-voltage applications.
• Input/Output Compatibility: The inputs are compatible with standard TTL levels, while the outputs can drive TTL and CMOS loads.
• High-Speed Operation: The device is capable of high-speed operation, with propagation delays typically around 4.5 ns at 5V.
• Low Power Consumption: The SN74LV240A features low static and dynamic power consumption, making it ideal for battery-powered applications.
• Output Drive Capability: Each output can drive up to 64 mA, allowing it to handle significant capacitive loads.
• Tri-State Outputs: The outputs can be placed in a high-impedance state, allowing multiple devices to share the same output line without interference.

Pin Configuration:

• The SN74LV240APWR is available in a 20-pin TSSOP (Thin Shrink Small Outline Package) form factor, which is compact and suitable for surface-mount applications. The pin configuration includes:
  • Inputs: A1, A2, A3, A4 (for the four buffer inputs)
  • Outputs: Y1, Y2, Y3, Y4 (for the corresponding buffer outputs)
  • Enable Pins: Each buffer can be enabled or disabled via the enable pins, allowing for flexible control of the output states.

Electrical Characteristics:

• Operating Temperature Range: The device is rated for operation from -40°C to +125°C, making it suitable for a wide range of environmental conditions.
• Input Voltage Levels: The input high voltage (VIH) and input low voltage (VIL) thresholds are defined to ensure reliable operation with TTL and CMOS logic levels.
• Output Voltage Levels: The output high voltage (VOH) and output low voltage (VOL) are specified to ensure compatibility with various logic families.

Applications:

The SN74LV240APWR is commonly used in applications such as:

• Signal buffering in digital circuits
• Driving LEDs and other loads
• Level shifting between different voltage domains
• Data communication interfaces
• General-purpose logic applications

Conclusion:

The SN74LV240APWR from Texas Instruments is a versatile and efficient quad buffer/driver that provides reliable performance in low-voltage applications. Its combination of high-speed operation, low power consumption, and robust drive capability makes it an excellent choice for modern electronic designs.