DM74ALS175N Equivalent & Substitute Parts

Part Overview

The DM74ALS175N is a logic integrated circuit functioning as a Flip Flop 1 Element D-Type 4 Bit with Positive Edge triggering in a 16-DIP (0.300", 7.62mm) through-hole package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The part operates within the 74ALS logic series and provides complementary output configuration with master reset functionality.

Substiute Parts

DM74ALS175N

onsemiIn Stock: 1328DM74ALS175N Datasheet

Current PartRFQ

SN74ALS175N

Texas InstrumentsIn Stock: 2166SN74ALS175N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74ALS175N is determined by strict equivalence across the following critical parameters:

• Logic series classification (74ALS)
• Functional type (D-Type Flip Flop, 1 Element, 4 Bit)
• Electrical specifications (Clock Frequency: 50 MHz, Propagation Delay: 17ns @ 5V/50pF, Supply Voltage: 4.5V ~ 5.5V)
• Output configuration (Complementary output with Master Reset function)
• Trigger mechanism (Positive Edge)
• Physical package (16-DIP through-hole, 0.300" / 7.62mm body width)
• Pin count and pinout compatibility (16-pin configuration)

The SN74ALS175N from Texas Instruments meets all these criteria and is classified as an active product, making it a direct functional and pin-compatible substitute for the obsolete DM74ALS175N.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS175N from Texas Instruments is the direct substitute for the obsolete DM74ALS175N. Selection of the Texas Instruments variant is supported by the following factors:

• Active product status ensures long-term availability and supply chain continuity
• RoHS3 compliance provides environmental and regulatory alignment for modern manufacturing standards
• Identical electrical and functional specifications eliminate design modification requirements
• Pin-for-pin and package-compatible configuration allows direct board-level replacement
• REACH Unaffected status and EAR99 classification maintain regulatory compliance across both variants

No design changes, PCB modifications, or firmware adjustments are required when transitioning from the DM74ALS175N to the SN74ALS175N.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS175N directly replace the DM74ALS175N without PCB modifications?

A: Yes. The SN74ALS175N is pin-for-pin compatible with identical pinout, package dimensions (16-DIP, 0.300" body width), and through-hole mounting configuration. No PCB layout changes are necessary.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts share identical specifications for clock frequency (50 MHz), propagation delay (17ns @ 5V, 50pF), supply voltage range (4.5V ~ 5.5V), output current ratings (400µA high, 8mA low), and quiescent current (14 mA).

Q: What is the primary reason for substitution?

A: The DM74ALS175N is classified as obsolete. The SN74ALS175N from Texas Instruments is an active product, ensuring continued availability for new production and design implementations.

Q: Are there compliance differences between the two parts?

A: The SN74ALS175N carries RoHS3 compliance certification, while the DM74ALS175N does not specify this status. Both maintain REACH Unaffected status and EAR99 export classification. Compliance requirements for your application should be verified against your specific regulatory framework.

Q: What packaging options are available for the SN74ALS175N?

A: The SN74ALS175N is supplied in Tube packaging. The DM74ALS175N does not specify a packaging format in the provided data. Verify packaging requirements for your procurement and assembly processes.

Q: Are there any functional differences in the D-Type flip-flop operation?

A: No. Both parts are functionally identical 1-element, 4-bit D-Type flip-flops with positive edge triggering, complementary output configuration, and master reset functionality.