JM54ACT244SRA-R

Overview

The JM54ACT244SRA-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 component operates on a single 5-volt supply and utilizes CMOS technology to ensure high speed and low power consumption. It is housed in a 20-lead ceramic dual in-line package (CDIP) suitable for military or aerospace applications requiring extended temperature stability.

Feature Summary

• Octal buffer configuration with three-state outputs for direct bus line driving
• Radiation-hardened CMOS construction immune to latchup
• Non-inverting logic design for accurate signal transmission

Applications

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

Procurement Notes

Verify the specific suffix 'R' indicates the correct reel or packaging variant if required. Confirm the manufacturer origin as National Semiconductor or its successor entities. Ensure the ceramic DIP package matches the mechanical constraints of the target assembly. Validate that the radiation-hardened specifications meet the environmental requirements of the intended deployment.

Selection Notes

Select this component when non-inverting buffering with high impedance states is required for bidirectional or unidirectional bus architectures. The three-state capability allows multiple devices to share a common data line without electrical conflict. Consider the ceramic package for superior thermal and mechanical reliability compared to plastic alternatives in harsh environments.

Part Context

This part belongs to the 54ACT series of high-speed CMOS logic devices. The '54' prefix typically denotes military-grade temperature ranges and performance standards. The ACT series offers improved speed-power product characteristics over standard AC logic families, making it suitable for demanding digital systems.

Replacement Considerations

Compatible substitutes include the UT54ACTS244 from Aeroflex or Cobham Semiconductor Solutions, which share similar functional specifications and radiation-hardened characteristics. Verify pinout compatibility and package dimensions before substitution.