DM74ALS174MX

Overview

The DM74ALS174MX is a hex D-type flip-flop manufactured by onsemi, belonging to the 74ALS logic family. It features six independent positive-edge-triggered D flip-flops with true outputs and an asynchronous master reset input. The component operates within a supply voltage range of 4.5 V to 5.5 V and supports a maximum clock frequency of 50 MHz. It utilizes a 16-SOP surface-mount package with a width of 5.30 mm. The device exhibits a maximum propagation delay of 17 ns at 5 V with 50 pF load capacitance and draws a static current of 19 mA. It functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Contains six independent positive-edge-triggered D-type flip-flops with true outputs
• Includes an asynchronous master reset input for immediate state initialization
• Supports high-speed operation with a maximum clock frequency of 50 MHz
• Utilizes a compact 16-pin small-outline package suitable for surface-mount applications

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations in digital systems
• General-purpose storage elements in microprocessor-based designs
• Timing and synchronization logic in communication interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to discontinuation status. Confirm package variant matches the SOP-16 specification with 5.30 mm width. Validate RoHS compliance documentation prior to integration. Ensure supply chain sources provide traceable manufacturing records to mitigate counterfeit risks associated with legacy logic components.

Selection Notes

Select this component for designs requiring multiple synchronized storage elements within a single integrated circuit. Consider the 19 mA static current consumption when evaluating power budgets for dense logic arrays. Verify that the 50 MHz clock limit aligns with system timing requirements. Ensure thermal management strategies accommodate the specified operating temperature range for reliable long-term performance.

Part Context

This part belongs to the 74ALS series, representing Advanced Low-power Schottky TTL logic technology. It serves as a successor to standard 74LS devices, offering improved speed while maintaining lower power consumption. The DM prefix indicates onsemi manufacturing origin. This specific model provides a compact solution for multi-bit storage needs in embedded systems and industrial control applications.

Replacement Considerations

• SN74ALS174NSR (Texas Instruments)

FAQ

What is the function of the master reset input?

The master reset input asynchronously clears all six flip-flops to a low state regardless of the clock signal or data inputs.

How does the output configuration work?

The device provides true outputs for each flip-flop, meaning the output state directly follows the Q terminal of the internal D-type latch structure.