Product Overview: NXP 74HCT244 Octal Buffer/Line Driver

The NXP 74HCT244 is a high-speed Si-gate CMOS device that is pin compatible with low-power Schottky TTL (LSTTL). It is designed to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters.

Key Features

• Octal Bus Interface: Eight independent buffer/line drivers with 3-state outputs provide a convenient interface for connecting to an 8-bit bus.
• High Noise Immunity: The 74HCT244 features a balanced propagation delay and transition times, offering high noise immunity typical of CMOS devices.
• Wide Operating Voltage: It operates across a wide voltage range from 4.5V to 5.5V, making it suitable for various applications.
• Non-Inverting Outputs: The outputs are non-inverting, providing a direct path from input to output.
• Power-Down Protection: Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of Vcc.
• Low Power Consumption: Characterized by low quiescent current, this device is ideal for power-sensitive applications.

Applications

The 74HCT244 is versatile and can be used in a variety of applications, including:

• Memory address drivers
• Clock drivers
• Bus transceivers and buffers
• Input/Output port drivers
• Data communication lines

Technical Specifications

Parameter Value Logic Type Buffer/Line Driver, Non-Inverting Number of Elements 1 Number of Bits per Element 8 Output Type 3-State Current - Output High, Low 6mA, 6mA Voltage - Supply 4.5V-5.5V Operating Temperature -40°C ~ 125°C

With its robust design and compatibility with TTL levels, the NXP 74HCT244 is a reliable choice for designers looking to add a high-performance octal buffer/line driver to their digital logic circuits.