DM74ALS573BWMX Equivalent & Substitute Parts

Part Overview

The DM74ALS573BWMX is a D-Type Transparent Latch logic IC manufactured by onsemi, featuring an 8:8 circuit configuration with tri-state output capability in a 20-SOIC package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates within the 4.5V to 5.5V supply voltage range with a 2ns propagation delay and supports industrial temperature ranges from 0°C to 70°C.

Substiute Parts

DM74ALS573BWMX

onsemiIn Stock: 1739DM74ALS573BWMX Datasheet

Current PartRFQ

SN74ALS573CDW

Texas InstrumentsIn Stock: 2255SN74ALS573CDW Datasheet

DirectRFQ

SN74ALS573CDWR

Texas InstrumentsIn Stock: 2822SN74ALS573CDWR Datasheet

DirectRFQ

SN74ALS573CNSR

Texas InstrumentsIn Stock: 846SN74ALS573CNSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS573BWMX are classified based on electrical and mechanical compatibility within the 74ALS logic family. The substitution criteria are strictly defined by the following parameters:

Critical Matching Parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Voltage - Supply: 4.5V ~ 5.5V
• Delay Time - Propagation: 2ns
• Current - Output High, Low: 2.6mA, 24mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Base Product Number: 74ALS573

Direct Substitutes maintain identical electrical specifications and package dimensions (20-SOIC, 0.295" width), differing only in manufacturer, product status, or packaging format (Tube vs. Tape & Reel).

Similar Substitutes maintain all electrical specifications but feature a different package width (20-SO, 0.209" width), requiring PCB layout verification for mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

SN74ALS573CDWR (Texas Instruments) is the primary recommended substitute. This part maintains identical electrical specifications and package dimensions to the DM74ALS573BWMX while offering active product status and ROHS3 compliance. The Tape & Reel packaging format supports high-volume manufacturing processes.

SN74ALS573CDW (Texas Instruments) provides equivalent electrical and mechanical compatibility with Last Time Buy status. This part is suitable for applications where Tube packaging is acceptable for lower-volume requirements.

SN74ALS573CNSR (Texas Instruments) is functionally equivalent but features a narrower package width (0.209" vs. 0.295"). This part requires PCB layout verification to confirm mechanical compatibility with existing footprints before implementation.

All three Texas Instruments alternatives provide ROHS3 compliance and active or extended product lifecycle status, ensuring long-term availability compared to the obsolete onsemi part.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS573CNSR be used as a direct replacement for DM74ALS573BWMX?

A: SN74ALS573CNSR is electrically equivalent but has a different package width (0.209" vs. 0.295"). Verify PCB footprint compatibility before substitution. The narrower package may not fit existing 0.295" width footprints without layout modification.

Q: What is the difference between SN74ALS573CDW and SN74ALS573CDWR?

A: Both parts are electrically identical with matching package dimensions. The primary difference is packaging format: CDW uses Tube packaging, while CDWR uses Tape & Reel format. CDWR is recommended for automated assembly processes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All three Texas Instruments substitute parts (SN74ALS573CDW, SN74ALS573CDWR, and SN74ALS573CNSR) are ROHS3 compliant. The original onsemi part (DM74ALS573BWMX) does not specify RoHS status.

Q: Why is the DM74ALS573BWMX classified as obsolete?

A: The part is no longer in active production by onsemi. Substitute parts from Texas Instruments provide equivalent functionality with active or extended product lifecycle status.

Q: Do all substitute parts support the same operating temperature range?

A: Yes. All substitute parts operate within the 0°C to 70°C temperature range, matching the original DM74ALS573BWMX specification.

Q: What are the key electrical parameters that define substitutability?

A: The critical parameters are logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (tri-state), supply voltage (4.5V ~ 5.5V), propagation delay (2ns), and output current specifications (2.6mA high, 24mA low).