JM54ACT244S2A-R

Overview

The JM54ACT244S2A-R is an octal buffer and line driver featuring three-state outputs, manufactured by National Semiconductor. It operates on a single 5-volt supply and utilizes 1.2µ CMOS technology for high speed and low power consumption. The device includes latchup immunity and flexible packaging options. Key electrical parameters include a maximum output current of 0.024 A per pin, an operating temperature range from -55 °C to 125 °C, and a 20-lead package configuration.

Feature Summary

• Three-state outputs designed to drive bus lines or buffer memory address registers
• High-speed operation with low power consumption using 1.2µ CMOS technology
• Latchup immune construction ensuring reliable performance in harsh environments

Applications

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

Procurement Notes

Verify the specific suffix 'S2A-R' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure the component meets required environmental standards and quality levels such as QML or V processes if applicable to the design. Cross-reference the datasheet revision date to confirm technical accuracy before integration.

Selection Notes

Select this component when an octal buffer with three-state capability is required for high-speed digital systems. The 1.2µ CMOS process offers a balance of speed and power efficiency suitable for battery-operated or heat-sensitive applications. Verify that the 20-lead package fits the available PCB footprint and that the voltage levels are compatible with the system logic family.

Part Context

This part belongs to the 54AC/ACT series of octal buffers and line drivers. It is functionally similar to other parts in the family but distinguished by its specific package and reel configuration. The series is widely used in military and aerospace applications due to its robust construction and wide temperature range capabilities.

Replacement Considerations

Check for direct equivalents such as the UT54ACTS244 from Aeroflex, which shares similar functional characteristics. Ensure that any substitute maintains the same three-state output behavior and voltage compatibility. Verify pin-to-pin compatibility and thermal performance before finalizing the replacement.