JM54ACT74SCA-RH

Flip Flops Overview

The JM54ACT74SCA-RH is a dual D-type flip-flop with independent clock inputs, set and reset terminals, manufactured by National Semiconductor. It features advanced Schottky transistor-transistor logic (TTL) design for high-speed operation. The device operates within a supply voltage range of 2.3V to 5.5V. It supports data hold times of zero nanoseconds relative to the clock edge. Propagation delays are typically 1.8ns from clock to output and 1.9ns from set/reset to output at 5V. The component is housed in a small outline package.

Flip Flops Feature Summary

• Dual D-type flip-flop architecture with separate clock, set, and reset controls
• Advanced Schottky TTL technology ensures high-speed switching performance
• Zero data hold time requirement relative to the active clock edge
• Compatible with standard TTL logic levels across wide voltage ranges

Flip Flops Applications

• High-speed digital data storage circuits
• Parallel-to-serial data conversion modules
• State machine implementation in control systems

Flip Flops Procurement Notes

Verify the manufacturer marking and date code against official National Semiconductor or Texas Instruments documentation. Confirm the suffix RH indicates specific environmental or packaging specifications as defined in the original datasheet. Ensure compatibility with existing board layouts regarding pinout and thermal requirements before integration.

Flip Flops Selection Notes

Select this component when dual independent D-flip-flops with asynchronous set and reset capabilities are required. The advanced Schottky technology makes it suitable for applications demanding faster propagation delays compared to standard LS series devices. Consider the operating voltage range and package constraints during circuit design.

Flip Flops Part Context

This part belongs to the 54ACT family of high-speed CMOS-compatible logic devices originally developed by National Semiconductor. The 54-series designation typically implies military-grade temperature ranges and reliability standards. The ACT series combines the speed of Schottky TTL with the low power consumption of CMOS technology.

Flip Flops Replacement Considerations

Check for direct cross-reference part numbers provided in official replacement guides. Verify that any substitute maintains identical pin configuration and electrical characteristics. Ensure the alternative component meets the same temperature and voltage specifications.