JM54ACT244BSA-R

Overview

The JM54ACT244BSA-R is an octal buffer and line driver featuring tri-state outputs, manufactured by National Semiconductor. It operates on a single 5V supply and utilizes CMOS technology for high speed and low power consumption. The device provides two independent four-bit drivers with true output polarity. Designed for robust performance, it offers latchup immunity and flexible packaging options suitable for demanding digital applications.

Feature Summary

• Tri-state outputs enable direct connection to bus lines without external pull-up or pull-down resistors
• CMOS construction ensures high-speed operation with low power consumption
• Latchup immune design enhances reliability in harsh environments

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitters and receivers

Procurement Notes

Verify the manufacturer designation as National Semiconductor, now part of Texas Instruments, to ensure component authenticity. Confirm the package type matches the required 20-lead flatpack configuration. Check for specific military or aerospace qualification markings if the application requires high-reliability standards. Ensure the date code aligns with current inventory management protocols.

Selection Notes

Select this component when an octal buffer with tri-state capability is required for 5V logic systems. It is suitable for designs needing high drive strength and isolation between input and output buses. Consider the package constraints and thermal requirements before finalizing the selection for PCB layout.

Part Context

This part belongs to the 54ACT series of high-speed CMOS logic devices. It is functionally compatible with other octal buffers in the family, such as the 54ACT244. The device serves as a critical interface component in digital systems requiring signal buffering and bus arbitration.

Replacement Considerations

Direct substitutes include the UT54ACTS244 from Aeroflex and the UT54ACTS244UVAR from Cobham Semiconductor Solutions. These parts share similar electrical characteristics and pinouts, facilitating drop-in replacements in existing designs.