ON Semiconductor 74LS240 Octal Buffer/Line Driver

The 74LS240 from ON Semiconductor is a high-performance, octal buffer and line driver designed to interface with 5V digital systems. This integrated circuit is part of the Low-Power Schottky (LS) logic family, which is well-known for its balance between speed and power consumption. The 74LS240 is specifically crafted to improve both the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

Key Features

• Logic Type: Octal Buffer/Line Driver with 3-state outputs
• Number of Pins: 20-pin package
• Operating Voltage: Typically 5V (4.75V to 5.25V range)
• Output Current: High-level output current of -3mA, and a low-level output current of 24mA
• Technology: Low-Power Schottky (LS)
• Propagation Delay Time: Approximately 11ns at 5V
• Operating Temperature Range: 0°C to 70°C

Product Description

The ON Semiconductor 74LS240 is equipped with eight inverting buffers with three-state outputs, providing an excellent solution for driving bus lines or buffer memory address registers. The three-state outputs ensure that multiple outputs can be connected to a bus, which remains in a high-impedance state until the outputs are enabled. This feature allows for a significant reduction in system power consumption and increases the flexibility of the system design.

Each buffer has a separate output-enable (OE) input which can control the state of each output. The OE inputs determine whether the output is in the active state or in a high-impedance state, thus controlling the flow of data through the buffer.

The 74LS240's fast propagation delay and high-current outputs are ideal for interfacing with high-speed microprocessors and can drive capacitive loads without degradation of signal quality, making it a reliable choice for advanced digital systems. Its 20-pin package and standard pin configuration allow for easy integration into a broad range of applications, from computer systems to industrial controls.

As a product of ON Semiconductor, a trusted leader in semiconductor solutions, the 74LS240 is manufactured to the highest quality standards, ensuring reliable performance and durability for mission-critical applications.