The PI74LPT244HA is an octal buffer/line driver with three-state outputs manufactured by Pericom Semiconductor Corp (now Diodes Incorporated). This device is designed to increase the drive capability of digital signals, making it suitable for driving heavily loaded buses or long transmission lines. The three-state outputs allow the device to be effectively disconnected from the bus when not actively driving, preventing contention.

Applications:

• Bus interface circuits
• Memory addressing
• Data buffering
• Line driving
• Microprocessor systems

Features:

• Octal buffer/line driver: Provides eight independent buffers in a single package.
• Three-state outputs: Allows the outputs to be high, low, or high-impedance.
• High output drive capability: Can drive heavily loaded buses.
• Low input current: Minimizes loading on the driving signal.
• Wide operating voltage range: Compatible with various logic families.
• Fast propagation delay: Ensures minimal signal delay through the device.

Benefits:

• Improved signal integrity: Increases the drive capability of signals, reducing signal degradation.
• Reduced bus loading: Minimizes the impact of the buffer on the bus.
• Increased system performance: Fast propagation delay ensures minimal impact on system speed.
• Simplified system design: Provides a convenient and efficient way to buffer and drive signals.

Additional Details:

The PI74LPT244HA is typically available in a DIP or SOIC package. The device features an output enable (OE) pin that controls the state of the outputs. When OE is low, the outputs are enabled; when OE is high, the outputs are in the high-impedance state. Detailed specifications, including supply voltage range, input voltage levels, output current capability, and propagation delay, can be found in the product datasheet. Understanding the loading requirements for the lines being driven is essential for choosing the correct buffer. This information should be found on the datasheet.