MC74HC244AFR2

Overview

The MC74HC244AFR2 is an octal buffer and line driver manufactured by onsemi. It features five-volt tolerant inputs and outputs, allowing for compatibility with mixed-voltage systems. The device provides three-state operation to facilitate bus-oriented connections without external buffers. It is designed for low-power CMOS technology, ensuring high noise immunity and stable performance across a wide operating temperature range.

Feature Summary

• Octal configuration providing eight independent non-inverting buffer channels
• Three-state output control for efficient bus-driven applications
• Five-volt tolerant I/O structure supporting mixed voltage environments
• CMOS construction offering low power consumption and high noise immunity

Applications

• Bus-oriented memory and address drivers
• Clock buffering and distribution circuits
• Data acquisition systems requiring signal isolation
• Industrial control modules with mixed voltage interfaces

Procurement Notes

Verify the complete part number including suffixes such as 'AFR2' against official onsemi documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure the requested variant matches the specific manufacturing revision and testing criteria defined in the current datasheet before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring octal buffering with three-state capability and five-volt tolerance. It is suitable for applications needing high-speed data transmission with low power dissipation. Consider the package constraints and thermal requirements of the target PCB layout during the selection process to ensure optimal electrical performance.

Part Context

This device belongs to the HC series of high-speed CMOS logic integrated circuits produced by onsemi. The series is characterized by fast propagation delays and wide operating voltage ranges. The MC74HC244AFR2 specifically addresses needs for octal buffering in digital communication and computing architectures where signal integrity and voltage level shifting are critical design factors.

Replacement Considerations

Consult official cross-reference guides for compatible alternatives from onsemi or other manufacturers. Verify pinout compatibility and electrical parameter equivalence before substituting. Ensure that any replacement part meets the same voltage tolerance and package specifications required by the original design.