DM74174N

Overview

The DM74174N is a hex D-type flip-flop manufactured by onsemi, belonging to the standard 7400 logic series. It integrates six independent positive-edge-triggered D-type flip-flops within a single package, featuring non-inverting outputs and a master reset function. The device operates at a supply voltage of 4.75V to 5.25V with a maximum propagation delay of 25ns at 5V and 15pF load. It supports a clock frequency up to 30 MHz and utilizes a 16-pin PDIP (Dual In-Line Package) for through-hole mounting.

Feature Summary

• Integrates six independent D-type flip-flops in a single unit
• Positive-edge triggering mechanism for data capture
• Includes a dedicated master reset control input
• Provides non-inverting output states

Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations
• General-purpose digital storage applications
• Timing sequence generation systems

Procurement Notes

Verify component authenticity and datasheet alignment due to discontinued status. Confirm pinout compatibility with legacy designs. Check for RoHS compliance variations across manufacturing batches. Validate operating temperature range suitability for specific environmental conditions. Ensure replacement strategies account for potential lead time delays from alternative manufacturers.

Selection Notes

Select this component for applications requiring multiple synchronized storage elements without external wiring complexity. Consider the 25ns propagation delay for timing-critical paths. Evaluate the 16-pin DIP package constraints against PCB layout requirements. Assess power consumption characteristics relative to system thermal limits. Compare performance metrics against modern CMOS alternatives if space or power efficiency is prioritized.

Part Context

This part belongs to the widely adopted 7400 series of TTL-compatible logic integrated circuits. It serves as a fundamental building block for sequential logic design. The hex configuration allows efficient implementation of multi-bit registers. Its discontinuation reflects industry shifts toward higher-density and lower-power technologies.

Replacement Considerations

Public confirmed substitute: SN74LS14N (Texas Instruments). Verify functional equivalence regarding trigger type and reset behavior before integration.