JM54ACT244B2A-R

Overview

The JM54ACT244B2A-R is an octal buffer and line driver manufactured by National Semiconductor. It features non-inverting logic with three-state outputs, designed for memory address driving, clock distribution, and bus-oriented transmission. The device operates at a supply voltage of 5.5V and utilizes a 20-LCCC package measuring 8.89x8.89 mm. It contains two elements with four bits per element, providing robust fan-out capabilities suitable for high-speed digital applications.

Feature Summary

• Non-inverting octal buffer design
• Three-state output capability
• Bus-oriented transmitter/receiver function

Applications

• Memory address driving
• Clock driver circuits
• Bus-oriented data transmission

Procurement Notes

Verify the manufacturer designation as National Semiconductor and confirm the specific suffix B2A indicates the 20-LCCC package variant. Ensure compatibility with 5.5V operating requirements and validate that the three-state output configuration matches system bus isolation needs before integration.

Selection Notes

Select this component when an octal buffer with three-state outputs is required for bus systems. Consider the 20-LCCC package constraints and ensure the 5.5V supply voltage aligns with the target circuit design. Verify pinout compatibility if replacing existing designs.

Part Context

This part belongs to the 54ACT244 family of octal buffers. It serves as a critical interface component in digital systems requiring signal buffering and bus management. The National Semiconductor branding indicates its origin from the legacy semiconductor division now part of Texas Instruments.

Replacement Considerations

Compatible substitutes include JM54ACT244S2A-R and JM54ACT244SSA-R, which share similar functional characteristics but may differ in package type or minor electrical specifications. Verify pin compatibility and voltage ratings before substitution.