CD54ACT109F3A

Overview

The CD54ACT109F3A is a military-grade dual positive-edge-triggered J-K flip-flop manufactured by Texas Instruments. It features independent clear (CLR) and preset (PRE) inputs for each flip-flop, allowing asynchronous control of the Q and Q# outputs. The device utilizes advanced CMOS technology to ensure high-speed operation while maintaining low power consumption. It is housed in a ceramic dual in-line package (CDIP-16) designed for reliability in harsh environments. The component operates within a voltage range typical for the ACT series and supports an extended industrial temperature range from -55°C to 125°C, making it suitable for demanding aerospace and defense applications.

Feature Summary

• Dual positive-edge-triggered J-K flip-flops with independent control
• Asynchronous clear and preset inputs for immediate state initialization
• Military-grade ceramic packaging for enhanced environmental durability
• High-speed CMOS logic technology ensuring fast switching capabilities

Applications

• Aerospace and defense digital systems requiring radiation-hardened or high-reliability components
• Military communication equipment operating in extreme temperature conditions
• Industrial control systems needing robust data storage and transfer
• Automotive electronics subjected to severe thermal and mechanical stress

Procurement Notes

Verify the specific suffix F3A corresponds to the required ceramic DIP-16 package configuration when sourcing. Confirm that the military grade designation aligns with project reliability standards. Check for any recent design changes or lifecycle notices from Texas Instruments. Ensure compatibility with existing board layouts due to the specific pinout and physical dimensions of the CDIP package. Validate supply chain authenticity through authorized distributors only.

Selection Notes

Select this component when dual J-K flip-flops with asynchronous control are required in high-reliability environments. Consider the ACT series speed and power characteristics compared to standard TTL or HC families. Evaluate the need for ceramic packaging over plastic alternatives for thermal and mechanical resilience. Assess the operating temperature range requirements against the specified -55°C to 125°C limit. Ensure voltage levels match the system's power supply constraints for the ACT family.

Part Context

The CD54ACT109 belongs to the Texas Instruments 54ACT family, which represents military-grade versions of the popular 74ACT logic series. This family bridges the performance gap between older TTL technologies and modern CMOS solutions. The '54' prefix indicates military qualification, distinguishing it from the commercial '74' variants. These devices are integral to complex digital logic designs requiring precise timing and state management in critical applications.

Replacement Considerations

Direct replacements include other 54ACT109 variants with compatible packaging. Verify pin-to-pin compatibility if substituting with different manufacturers' equivalents. Ensure that any alternative maintains the same asynchronous clear and preset functionality. Check for differences in electrical characteristics such as propagation delay and drive strength.