DM74ALS174SJX

Overview

The DM74ALS174SJX is a hex D-type flip-flop from the Advanced Low-power Schottky (ALS) logic family, manufactured by Fairchild Semiconductor. It features six independent positive-edge-triggered D flip-flops with true outputs and a master reset input. The device operates within a supply voltage range of 4.5V to 5.5V and supports a maximum clock frequency of 50 MHz. Propagation delay is specified as 17ns at 5V with 50pF load. Output drive capabilities include 400µA high and 8mA low current. It is housed in a 16-SOIC package with a width of 5.30mm.

Feature Summary

• Contains six independent positive-edge-triggered D-type flip-flops with true outputs
• Features a common master reset input for synchronous clearing of all stages
• Utilizes Advanced Low-power Schottky process for improved switching performance
• Designed for operation within standard TTL logic levels

Applications

• High-performance memory decoding systems
• Data-routing applications requiring fast edge triggering
• Asynchronous bidirectional data bus interfaces
• Microprocessor system control logic

Procurement Notes

Verify component authenticity through authorized distributors or manufacturer channels. Confirm lot codes and date codes align with project requirements. Check for RoHS compliance status if environmental regulations apply. Ensure storage conditions meet moisture sensitivity level 1 standards. Validate pinout compatibility with existing PCB footprints before integration.

Selection Notes

Select this component when hex D-latch functionality with positive-edge triggering is required. Consider the ALS series for lower power consumption compared to standard LS logic. Verify that the 16-SOIC package fits the available board space. Ensure the 50 MHz clock limit meets the system timing requirements. Check availability as the part may be discontinued or obsolete.

Part Context

This device belongs to the 74ALS174 series of hex D-type flip-flops. It is functionally equivalent to other manufacturers' ALS174 parts but may differ in packaging suffixes. The SJX suffix typically indicates tape and reel packaging. It is part of the broader 74-series logic family designed for digital logic applications.

Replacement Considerations

• SN74ALS174NSR

FAQ

What is the trigger type of the DM74ALS174SJX?

The device uses positive-edge triggering for its D-type flip-flops.

Does the DM74ALS174SJX have an active clear input?

Yes, it includes a master reset input that clears all six flip-flops.