84150012A

Overview

The Texas Instruments 84150012A is a dual J-K positive-edge-triggered flip-flop belonging to the SN54HC109 series. It features independent clear and preset functions for each flip-flop within a single package. The device operates in a military temperature range of -55°C to +125°C, ensuring reliability in harsh environments. It utilizes CMOS technology compatible with standard logic families. The component is housed in a 20-pin LCCC (FK) package, providing robust mechanical stability and thermal performance suitable for high-reliability aerospace and defense applications requiring precise timing control.

Feature Summary

• Dual J-K configuration with independent positive-edge triggering
• Integrated clear and preset control functions
• Military-grade temperature rating from -55°C to +125°C
• CMOS construction for low power consumption

Applications

• Aerospace and defense digital systems
• High-reliability data storage registers
• Industrial control sequence logic
• Military communication timing circuits

Procurement Notes

Verify the specific ordering suffix FK corresponds to the 20-pin LCCC package when sourcing. Confirm that the part number matches the SN54HC109 family specifications for voltage levels and pinout compatibility. Ensure supply chain sources provide traceability documentation required for military or aerospace procurement standards. Cross-reference the manufacturer's latest datasheet to confirm current manufacturing status and any potential obsolescence notices before finalizing acquisition plans.

Selection Notes

Select this component when dual J-K functionality with separate clear and preset controls is required in a compact form factor. The SN54HC109 series offers HC/UH speed and power characteristics suitable for general-purpose logic applications. Consider the 20-pin LCCC package for its environmental sealing capabilities if operating in extreme conditions. Verify input voltage compatibility with the system's logic levels to ensure proper signal integrity across the specified temperature range.

Part Context

This part belongs to the SN54HC109 series of dual J-K flip-flops manufactured by Texas Instruments. The SN54 series denotes military-grade quality and extended temperature ranges compared to commercial variants. The HC designation indicates High-speed CMOS technology, offering faster switching speeds than older LS series devices while maintaining low power dissipation. This specific model integrates two independent flip-flops, reducing board space requirements for sequential logic designs.

Replacement Considerations

Compatible substitutes include other SN54HC109 variants from Texas Instruments or equivalent parts from manufacturers like ON Semiconductor and Microchip Technology. Ensure replacement components match the 20-pin LCCC package footprint and pinout configuration. Verify that alternative sources meet the same -55°C to +125°C operating temperature specifications and maintain identical logical functionality for seamless integration.