The QS74FCT2827ATSO is an octal buffer/line driver with 3-state outputs manufactured by QSI (Quality Semiconductor, Inc.). It belongs to the FCT (Fast CMOS Technology) family, offering high-speed performance with low power consumption. This device is commonly used to improve signal integrity and drive capability in digital circuits, especially when interfacing with buses or driving capacitive loads. The 3-state outputs allow the device to be effectively disconnected from the bus when not actively driving, minimizing loading and preventing contention.

Applications

• Memory interfacing
• Bus driving
• Clock driving
• Data buffering
• Line driving
• Signal isolation
• Level translation

Features

• Octal buffer/line driver
• 3-state outputs
• High-speed FCT technology
• Low power consumption
• TTL-compatible inputs
• SOIC (Small Outline Integrated Circuit) package
• Operating voltage: 5V

Benefits

• Improved signal integrity
• Increased drive capability
• Reduced loading on the bus
• Minimized power consumption
• Simplified interfacing with TTL logic
• Compact surface-mount package

Additional Details

The QS74FCT2827ATSO features eight independent buffer/line driver channels, each capable of driving signals with sufficient current to overcome capacitive loading and maintain signal integrity. The 3-state outputs can be enabled or disabled using an output enable (OE) input. When the OE input is high, the outputs are in a high-impedance state, effectively disconnecting the device from the bus. When the OE input is low, the outputs are enabled, and the device drives the bus. The device operates at a supply voltage of 5V and is TTL-compatible, making it easy to interface with other TTL logic devices. The SOIC package is a compact surface-mount package that saves board space. The propagation delay is a key performance parameter, indicating the time it takes for a signal to propagate through the device. This device is used in applications where high speed, low power consumption, and reliable signal driving are essential.