DM74175J

Overview

The DM74175J is a standard TTL quad D-type flip-flop with positive-edge-triggered operation, housed in a 16-pin ceramic dual in-line package (DIP). It operates at a nominal supply voltage of 5 V and supports asynchronous clear functionality. The device features a maximum operating frequency of 35 MHz and a maximum low-level output current of 16 mA. Designed for commercial temperature ranges up to 70 °C, it utilizes a 14-terminal configuration within the DIP-16 form factor.

Feature Summary

• Provides four independent D-type flip-flops with positive-edge triggering
• Includes an asynchronous clear input for immediate state reset
• Constructed using standard TTL logic technology
• Encapsulated in a hermetic ceramic dual in-line package

Applications

• Parallel data storage registers
• Shift register configurations
• Frequency division circuits
• Timing sequence control systems

Procurement Notes

Verify that the specific part number matches the requested National Semiconductor DM74175J variant. Confirm the package type is ceramic DIP-16 and not plastic or SOIC. Ensure the manufacturer source is identified as National Semiconductor or its successor Texas Instruments, as generic listings may represent different package materials or logic families. Check for compliance status if required by the application environment.

Selection Notes

Select this component when a hermetic ceramic package is required for environmental stability or radiation hardness compared to plastic alternatives. The standard TTL family ensures compatibility with existing 5 V logic interfaces. Consider the 35 MHz speed limit and 70 °C temperature range against system requirements. Verify that the asynchronous clear feature meets the reset timing needs of the design.

Part Context

This device belongs to the DM74xx series of standard TTL integrated circuits manufactured by National Semiconductor. The 'DM' prefix typically denotes a military or high-reliability grade ceramic package variant, distinguishing it from the plastic DM54xx or standard DM74xx counterparts. The 74175 function code specifically identifies the quad D-flip-flop topology within the broader logic family.

Replacement Considerations

Public confirmed substitute part numbers include SN54175J and SN74175J.