The 74ACTQ244MSA is an octal buffer/driver with 3-state outputs manufactured by Fairchild/ON Semiconductor. This device is part of the advanced CMOS (ACT) logic family, offering high-speed performance and low power consumption. The 74ACTQ244 features eight independent buffers/drivers that can be used to isolate signals, increase drive capability, or implement memory addressing schemes. The 3-state outputs allow the device to be effectively disconnected from the bus, enabling multiple devices to share the same bus lines.

Applications

• Memory addressing
• Data bus buffering
• Logic level translation
• Line driving
• General-purpose logic

Features

• Octal buffer/driver
• 3-state outputs
• High-speed performance
• Low power consumption
• TTL-compatible inputs

Benefits

• Provides increased drive capability for bus lines
• Enables efficient memory addressing schemes
• Allows for bidirectional data transfer on a single bus
• Reduces power consumption in battery-powered applications
• Simplifies interfacing with TTL logic circuits

Additional Details

The 74ACTQ244MSA operates from a 4.5V to 5.5V power supply and features a typical propagation delay of 5 ns. The 3-state outputs are controlled by two enable inputs, which allow the device to be placed in a high-impedance state. The device is available in a surface-mount package, making it easy to integrate into modern circuit boards. The TTL-compatible inputs ensure compatibility with a wide range of logic families.

This buffer/driver is commonly used in memory systems to provide the necessary drive capability for addressing large memory arrays. It is also found in data bus systems, where it helps to isolate and protect sensitive data lines. In logic level translation applications, it can be used to convert between different voltage levels. The 74ACTQ244MSA is a versatile logic device that can be used in a wide variety of applications.