DM74ALS374SJ Equivalent & Substitute Parts

Part Overview

The DM74ALS374SJ is a Flip Flop 1 Element D-Type 8 Bit Positive Edge logic integrated circuit manufactured by onsemi in a 20-SOIC (0.209", 5.30mm Width) surface mount package. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. The part operates at 35 MHz clock frequency with 16ns maximum propagation delay and is designed for standard logic applications requiring tri-state, non-inverted output configuration.

Substiute Parts

DM74ALS374SJ

onsemiIn Stock: 855DM74ALS374SJ Datasheet

Current PartRFQ

SN74ALS374ANSR

Texas InstrumentsIn Stock: 3833SN74ALS374ANSR Datasheet

DirectRFQ

SN74ALS374ADW

Texas InstrumentsIn Stock: 2103SN74ALS374ADW Datasheet

SimilarRFQ

SN74ALS374ADWR

Texas InstrumentsIn Stock: 1933SN74ALS374ADWR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DM74ALS374SJ is determined by strict equivalence across the following critical parameters: Series (74ALS), functional type (D-Type Flip Flop), element and bit configuration (1 Element, 8 Bit), output characteristics (Tri-State, Non-Inverted), clock frequency (35 MHz), propagation delay (16ns @ 5V, 50pF), trigger mechanism (Positive Edge), supply voltage range (4.5V ~ 5.5V), output current specifications (2.6mA high, 24mA low), quiescent current (19 mA), operating temperature range (0°C ~ 70°C), and surface mount configuration.

The substitute parts identified—SN74ALS374ANSR, SN74ALS374ADW, and SN74ALS374ADWR—all maintain identical electrical and functional specifications. Variations exist only in packaging format (Tape & Reel, Tube, or unspecified) and product status (Active or Last Time Buy), with no impact on electrical performance or pin compatibility.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the DM74ALS374SJ, the Texas Instruments SN74ALS374ANSR and SN74ALS374ADWR are recommended as primary alternatives. Both parts maintain Active product status, ensuring long-term availability and manufacturing support. The SN74ALS374ANSR is supplied in Tape & Reel packaging and provides the closest physical footprint match with 20-SOIC (0.209", 5.30mm Width) configuration. The SN74ALS374ADWR offers identical electrical specifications with 20-SOIC (0.295", 7.50mm Width) package dimensions and is currently in Active status.

The SN74ALS374ADW is available as an alternative but carries Last Time Buy status, indicating limited future availability. This part should be considered only when inventory constraints or specific packaging requirements (Tube format) necessitate its use.

All three substitute parts are ROHS3 Compliant, providing environmental compliance advantages over the original onsemi part. Electrical performance, pin configuration, and functional behavior are identical across all options.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS374ANSR be used as a direct replacement for DM74ALS374SJ?

A: Yes. Both parts are 74ALS series D-Type flip flops with identical electrical specifications, functional characteristics, and 20-SOIC (0.209", 5.30mm Width) package dimensions. Pin-for-pin compatibility is confirmed.

Q: What is the difference between SN74ALS374ANSR and SN74ALS374ADWR?

A: The primary difference is package width: SN74ALS374ANSR uses 20-SOIC (0.209", 5.30mm Width), while SN74ALS374ADWR uses 20-SOIC (0.295", 7.50mm Width). Electrical specifications and functional performance are identical. Selection depends on PCB layout and footprint requirements.

Q: Why is SN74ALS374ADW marked as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has announced end-of-life for this part number. Existing inventory may be available, but future production is not planned. For new designs or long-term production, SN74ALS374ANSR or SN74ALS374ADWR are preferred.

Q: Are all substitute parts RoHS compliant?

A: Yes. SN74ALS374ANSR, SN74ALS374ADW, and SN74ALS374ADWR are all ROHS3 Compliant. The original DM74ALS374SJ RoHS status was not specified in available documentation.

Q: Will substituting these parts require PCB layout changes?

A: SN74ALS374ANSR maintains the same 20-SOIC (0.209", 5.30mm Width) footprint as the original part and requires no layout modifications. SN74ALS374ADWR and SN74ALS374ADW use a wider 20-SOIC (0.295", 7.50mm Width) package and may require footprint adjustment depending on PCB design constraints.

Q: Are there any electrical performance differences between these parts?

A: No. All parts maintain identical clock frequency (35 MHz), propagation delay (16ns @ 5V, 50pF), supply voltage range (4.5V ~ 5.5V), output current specifications (2.6mA high, 24mA low), and quiescent current (19 mA).