74ACT109PC

Overview

The Fairchild Semiconductor 74ACT109PC is a dual positive-edge triggered J-K flip-flop housed in a 16-pin Plastic Dual In-Line Package (PDIP). It belongs to the 74ACT logic family, operating with a supply voltage range of 4.5V to 5.5V and featuring TTL-compatible inputs. The device provides complementary outputs for each of its two functions, supporting industrial temperature ranges from -40°C to 85°C.

Feature Summary

• Dual independent J-K flip-flops with positive edge triggering
• Complementary output configuration for both sections
• TTL-compatible input thresholds within the ACT series

Applications

• Parallel data storage registers
• Shift register construction
• Frequency division circuits

Procurement Notes

Verify component authenticity through authorized distributors or certified suppliers. Confirm package integrity and pin alignment against the PDIP-16 specification. Review datasheets for specific lot traceability requirements and ensure compliance with applicable environmental directives relevant to the procurement region.

Selection Notes

Select this component when dual J-K functionality with complementary outputs is required in a DIP format. Ensure the design utilizes a 5V supply rail compatible with ACT logic levels. Consider the PDIP-16 footprint constraints during PCB layout and verify thermal management capabilities for the specified industrial temperature range.

Part Context

This part is a member of the industry-standard 74ACT logic family, bridging CMOS performance with TTL compatibility. Manufactured by Fairchild Semiconductor, it serves as a discrete sequential logic element. The PDIP-16 package facilitates prototyping and through-hole assembly applications requiring robust mechanical mounting.

Replacement Considerations

Cross-reference with other manufacturers' 74ACT109 equivalents. Verify pinout compatibility and electrical specifications before substitution. Note that some variants may lack complementary outputs or differ in package dimensions.