M74HCT244RM13TR

Overview

The M74HCT244RM13TR is an octal buffer and line driver manufactured by STMicroelectronics. It features TTL-compatible CMOS inputs and three-state outputs, designed for high-speed bus-oriented applications. The device operates within a supply voltage range of 4.5V to 5.5V. It contains two independent four-bit buffers or one eight-bit buffer. The component utilizes a 20-pin SOIC package and supports surface-mount installation.

Feature Summary

• TTL-compatible CMOS input structure
• Three-state output capability for bus driving
• Dual four-bit or single eight-bit buffering configuration

Applications

• Bus-oriented systems
• Memory address drivers
• Clock drivers

Procurement Notes

Verify the specific datasheet revision and package marking for the M74HCT244RM13TR variant. Confirm that the 4.5V to 5.5V operating voltage aligns with system requirements. Ensure the 20-pin SOIC footprint matches the PCB layout. Check for RoHS compliance status in official documentation.

Selection Notes

Select this component when TTL compatibility is required alongside CMOS noise immunity. The three-state outputs facilitate connection to shared data buses. Verify that the 20-pin SOIC package fits the available board space. Ensure the operating temperature range meets environmental specifications.

Part Context

This part belongs to the 74HCT logic family, which bridges HC logic speed with TTL voltage levels. It serves as a standard interface component for digital systems requiring signal buffering and direction control on parallel buses.

Replacement Considerations

Cross-reference with SN74HCT244 or equivalent octal buffer ICs from other manufacturers. Verify pinout compatibility and electrical characteristics before substitution.