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.