DM74ALS574AWMX Equivalent & Substitute Parts

Part Overview

The DM74ALS574AWMX is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component operates at a clock frequency of 35 MHz with a maximum propagation delay of 14 ns at 5V with 50 pF load. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity.

Substiute Parts

DM74ALS574AWMX

onsemiIn Stock: 3311DM74ALS574AWMX Datasheet

Current PartRFQ

SN74ALS574BDW

Texas InstrumentsIn Stock: 3297SN74ALS574BDW Datasheet

DirectRFQ

SN74ALS574BDWR

Texas InstrumentsIn Stock: 2174SN74ALS574BDWR Datasheet

DirectRFQ

SN74ALS574BNSR

Texas InstrumentsIn Stock: 2993SN74ALS574BNSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DM74ALS574AWMX is determined by strict equivalence across the following critical parameters:

• Functional Type: D-Type flip-flop with 1 element, 8-bit configuration
• Output Configuration: Tri-state, non-inverted output
• Electrical Performance: Clock frequency of 35 MHz, propagation delay of 14 ns at 5V with 50 pF load
• Trigger Mechanism: Positive edge triggering
• Supply Voltage: 4.5V to 5.5V operating range
• Output Current Specifications: 2.6 mA (high), 24 mA (low)
• Quiescent Current: 18 mA maximum
• Temperature Range: 0°C to 70°C
• Series Designation: 74ALS logic family

Parts are classified into two categories: Direct Substitutes maintain identical package specifications (20-SOIC 0.295" width), while Similar Substitutes share all electrical and functional parameters but differ in package dimensions (20-SOIC 0.209" width).

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Identical Package Dimensions)

SN74ALS574BDWR (Texas Instruments) is the primary recommended substitute. This part maintains full electrical and functional equivalence with the DM74ALS574AWMX while offering active product status and ROHS3 compliance. The part is supplied in Cut Tape and Digi-Reel packaging with 2,088 units currently in stock.

SN74ALS574BDW (Texas Instruments) provides an alternative direct substitute with identical electrical specifications and package dimensions. This part carries Last Time Buy status and ROHS3 compliance, with 3,250 units in inventory. Selection of this part should account for its end-of-life trajectory.

Similar Substitute (Alternate Package Dimensions)

SN74ALS574BNSR (Texas Instruments) maintains complete electrical and functional equivalence but differs in package width (0.209" versus 0.295"). This part is active and ROHS3 compliant with 2,940 units available. PCB layout and footprint compatibility must be verified before selection, as the narrower package width may require design modifications.

All substitute parts share identical electrical performance, supply voltage requirements, output current specifications, and operating temperature ranges with the original DM74ALS574AWMX component.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS574BDWR be used as a direct replacement for DM74ALS574AWMX?

A: Yes. SN74ALS574BDWR is a direct substitute. Both parts share identical electrical specifications, functional configuration (D-Type flip-flop, 1 element, 8-bit, tri-state non-inverted output), clock frequency (35 MHz), propagation delay (14 ns at 5V, 50 pF), supply voltage range (4.5V to 5.5V), output current ratings (2.6 mA high, 24 mA low), quiescent current (18 mA), operating temperature range (0°C to 70°C), and package dimensions (20-SOIC 0.295" width). No circuit modifications are required.

Q: What is the difference between SN74ALS574BDW and SN74ALS574BDWR?

A: Both parts are electrically and functionally identical. The primary difference is packaging format: SN74ALS574BDW is supplied in Tube packaging, while SN74ALS574BDWR is supplied in Cut Tape and Digi-Reel format. Selection depends on procurement and assembly requirements.

Q: Can SN74ALS574BNSR replace DM74ALS574AWMX in existing designs?

A: SN74ALS574BNSR is electrically and functionally equivalent but has a different package width (0.209" versus 0.295"). While the pin configuration and electrical performance are identical, the narrower package width requires verification of PCB footprint compatibility. Existing PCB layouts designed for the 0.295" width package may require modification to accommodate the 0.209" width package.

Q: Why is the DM74ALS574AWMX classified as obsolete?

A: The DM74ALS574AWMX is an onsemi product that has reached end-of-life status. Texas Instruments continues to manufacture equivalent parts in the 74ALS574 series, including active and last-time-buy options, ensuring design continuity and supply availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SN74ALS574BDW, SN74ALS574BDWR, and SN74ALS574BNSR are all ROHS3 compliant. The original DM74ALS574AWMX RoHS status is not specified in available documentation.

Q: What is the current inventory status for substitute parts?

A: SN74ALS574BDWR has 2,088 units in stock (Active status). SN74ALS574BDW has 3,250 units in stock (Last Time Buy status). SN74ALS574BNSR has 2,940 units in stock (Active status). Inventory levels should be verified with suppliers for current availability.