JM54ACT574BRA-R

Overview

The JM54ACT574BRA-R is an octal D-type flip-flop manufactured by National Semiconductor. It features tri-state outputs and a buffered common clock input. The device operates within a supply voltage range of 4.5 V to 5.5 V. It utilizes a 20-CDIP package with a 0.300-inch (7.62mm) width. The component supports through-hole mounting and is designed for high-speed, low-power applications.

Feature Summary

• Octal D-type flip-flop architecture with tri-state outputs
• Buffered common clock and output enable inputs
• High-speed operation with low power consumption characteristics

Applications

• Parallel data storage in digital systems
• Register file implementation
• Data buffering between logic stages

Procurement Notes

Verify the manufacturer designation as National Semiconductor on the component marking. Confirm the 20-CDIP package dimensions match the required 0.300-inch footprint. Ensure the part number suffix corresponds to the specific military or industrial grade variant if environmental ratings are critical for the application design.

Selection Notes

Select this component when an octal D-type flip-flop with tri-state outputs is required. The ACT series offers improved speed compared to standard TTL. Verify that the 20-CDIP package is compatible with the target PCB layout. Ensure the operating voltage requirements align with the 4.5 V to 5.5 V specification.

Part Context

This component belongs to the 54ACT574 family of octal D-type flip-flops. The 'JM' prefix typically indicates a military-grade or specific vendor variant from National Semiconductor. The device is part of the broader AC/ACT logic family known for high-speed performance and compatibility with standard logic interfaces.

Replacement Considerations

The SN74ACT574N from Texas Instruments serves as a functional equivalent within the same logic family. Both devices share the octal D-type configuration and tri-state output capabilities. Verify pinout compatibility before substitution.