JM54ACT244SZA-F

Overview

The JM54ACT244SZA-F is an octal buffer and line driver manufactured by National Semiconductor, featuring tri-state outputs. It operates within a supply voltage range of 4.5V to 5.5V and supports a maximum operating temperature of 125°C with a minimum of -55°C. The device contains two elements, each with four bits, housed in a 20-CFP package. It provides true output polarity and delivers a sink current (IOL) of 24mA.

Feature Summary

• Octal buffer and line driver configuration with tri-state outputs for efficient bus management
• Wide operating temperature range suitable for demanding industrial environments
• High sink current capability of 24mA for robust signal driving

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• Industrial control systems requiring wide temperature tolerance

Procurement Notes

Verify the manufacturer marking matches National Semiconductor specifications. Confirm the package type is 20-CFP and check for any specific military or aerospace qualification markings associated with the 54ACT series designation. Ensure the datasheet aligns with the requested electrical characteristics before finalizing procurement.

Selection Notes

Select this component when an octal buffer with tri-state functionality is required for high-speed digital applications. Consider the 24mA sink current and wide temperature range if operating in harsh conditions. Verify compatibility with 5V logic families and ensure the 20-CFP package fits the board layout constraints.

Part Context

This part belongs to the 54ACT series, which offers performance comparable to the standard 74ACT family but with extended temperature ranges and higher reliability standards typically associated with military-grade components. It serves as a critical interface element in complex digital systems requiring isolated buffering.

Replacement Considerations

Check for direct equivalents such as the SN54ACT244 variants from Texas Instruments or other manufacturers offering the same 54ACT specification. Ensure pinout compatibility and verify that the replacement meets the same temperature and electrical requirements.