DM74ALS109AM

Overview

The DM74ALS109AM is a dual J-K positive-edge-triggered flip-flop manufactured by Fairchild Semiconductor. It features individual J, K, clock, clear, and preset inputs with complementary Q and Q outputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. It supports a minimum operating temperature of 0°C and a maximum of +70°C. The component is housed in a 16-lead Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Dual edge-triggered flip-flop configuration with independent control inputs
• Complementary Q and Q outputs for versatile logic interfacing
• Advanced low power Schottky technology for improved performance

Applications

• Memory systems requiring data storage elements
• Microprocessor-based digital circuits
• Asynchronous sequential logic designs

Procurement Notes

Verify the specific manufacturer designation, as Fairchild Semiconductor products may be distributed under onsemi branding following corporate restructuring. Confirm the package type matches the required 16-lead SOIC form factor. Ensure the operational temperature range aligns with the system environment constraints. Check for any lead-free or RoHS compliance markings if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a dual J-K flip-flop with positive-edge triggering is required for ALS series compatibility. Consider the 16-lead SOIC package for surface-mount assembly needs. Evaluate the propagation delay and power consumption characteristics against system timing requirements. Ensure the input logic levels are compatible with the TTL family standards defined for the ALS series.

Part Context

This part belongs to the 74ALS (Advanced Low-power Schottky) logic family, known for superior speed-to-power ratio compared to standard LS devices. The DM74ALS109A variant specifically provides two independent flip-flops in a single package, optimizing board space for sequential logic applications.

Replacement Considerations

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