ON Semiconductor MC74ACT240 Octal Buffer/Line Driver

The ON Semiconductor MC74ACT240 is a high-performance, octal buffer and line driver designed to interface with 8-bit microprocessors and bus-oriented systems. This integrated circuit is a part of the high-speed ACT family, which is known for its robust performance and compatibility with TTL levels. The MC74ACT240 is characterized by its versatility, as it offers both inverting and non-inverting buffer capabilities.

Constructed with BiCMOS technology, the MC74ACT240 provides optimal speed-power combination which makes it suitable for a variety of demanding applications. The device features octal non-inverting buffers with 3-state outputs, allowing for high-speed operation while driving heavily loaded bus lines or buffer memory address registers. This functionality also enables the device to be used in systems that require high drive capacity and minimal power consumption.

The MC74ACT240 has two active-low output enable inputs, which allow for easier control of the device. When the output enable inputs are held high, the outputs are in a high impedance state, which is essential for bus-oriented systems. This feature ensures that multiple devices can share a common bus line without interference.

The device operates over a wide voltage range of 4.5V to 5.5V, making it compatible with most 5V systems, and it is guaranteed to be over the full temperature range of -55°C to 125°C. The MC74ACT240's inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of Vcc.

ON Semiconductor's MC74ACT240 is available in a variety of packages, including the 20-lead PDIP, SOIC, and TSSOP, providing flexibility for different PCB layouts and assembly processes. The MC74ACT240 is a reliable choice for designers who require a high-speed, low-power octal buffer/line driver for their digital systems.

Overall, the MC74ACT240 from ON Semiconductor is an essential component for those looking to enhance their digital systems with a robust, high-performance buffer and line driver solution.