74ACT109SC

Overview

The onsemi 74ACT109SC is a dual JK-type flip-flop integrated circuit belonging to the 74ACT logic series. It features two independent 1-bit elements housed in a 16-SOIC surface-mount package. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a recommended operating temperature range from -40°C to +85°C. Designed for high-speed digital applications, it provides positive-edge triggering functionality suitable for complex sequential logic circuits requiring reliable data storage and transfer capabilities.

Feature Summary

• Dual JK-type flip-flop architecture with two independent 1-bit elements
• Positive-edge triggering mechanism for precise timing control
• TTL-compatible input levels ensuring seamless integration with standard logic families
• Surface-mount SOIC-16 packaging optimized for automated assembly processes

Applications

• High-speed digital signal processing systems
• Memory address registers and data storage modules
• State machine implementations in embedded controllers
• Frequency division and counter circuits

Procurement Notes

Verify the specific suffix 'SC' against the manufacturer's official datasheet to confirm pinout compatibility and electrical characteristics. Ensure that the procurement source provides valid RoHS compliance documentation. Cross-reference the part number with current obsolescence notices to prevent integration issues with discontinued components during long-term production cycles.

Selection Notes

Select this component when designing circuits requiring dual JK flip-flops with ACT-level speed and drive capability. It is appropriate for systems operating strictly at 5V nominal supply voltages. Consider alternative packages if board space constraints differ from the SOIC-16 footprint requirements or if extended industrial temperature ranges beyond standard specifications are necessary.

Part Context

This component belongs to the 74ACT family of advanced CMOS logic devices manufactured by onsemi. The 74ACT series bridges the performance gap between older TTL standards and modern CMOS technologies, offering faster switching speeds while maintaining compatible input thresholds. This specific model represents a specialized sequential logic element within the broader decoder and flip-flop product portfolio.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.