ON Semiconductor MC74HCT244AFEL Octal 3-State Non-Inverting Buffer/Line Driver

The MC74HCT244AFEL is a high-performance integrated circuit from ON Semiconductor, designed to function as an octal 3-state non-inverting buffer/line driver. This versatile component is essential for applications that require the driving of bus lines or buffer memory address registers while providing non-inverting outputs. The device is fabricated with silicon gate CMOS technology, which ensures low power consumption while maintaining high speed.

This IC is characterized for operation from -55°C to +125°C, making it suitable for a wide range of environmental conditions. The MC74HCT244AFEL is compatible with LS-TTL outputs and has the capability to drive 15 LS-TTL loads. The 3-state outputs are controlled by the output enable inputs 1OE and 2OE. When the output enable inputs are high, the outputs are in a high-impedance state, which allows for the use in bus-organized systems.

The device comes in a 20-lead SOIC package, which is designed for space-saving in PCB layouts and is ideal for automated surface-mount assembly processes. This package type also provides improved thermal performance and reduces the likelihood of mechanical damage during handling and operation.

The MC74HCT244AFEL features a wide operating voltage range from 4.5V to 5.5V, which is typical for 5V systems but also provides some margin for supply variations. This feature ensures that the device can be used in systems with tight power supply tolerances. Additionally, the IC has a high noise immunity characteristic of CMOS devices, which is crucial for stable operation in electrically noisy environments.

Key applications for the MC74HCT244AFEL include driving bus lines in computing systems, buffering inputs and outputs for microprocessors, and interfacing between different voltage logic levels due to its TTL compatibility. Its robustness, combined with ON Semiconductor's reliability, makes it a preferred choice for engineers and designers looking for a high-quality buffer/line driver solution.

For detailed specifications and application circuits, designers should refer to the official datasheets and product documentation provided by ON Semiconductor.