DM74ALS576AN Equivalent & Substitute Parts

Part Overview

The DM74ALS576AN is a logic integrated circuit functioning as a flip-flop with D-type configuration, single element, 8-bit capacity, and tri-state inverted output. Manufactured by onsemi, this component operates at a clock frequency of 30 MHz with a maximum propagation delay of 14ns at 5V with 50pF load. The part is classified as obsolete, making identification of equivalent substitute components necessary for ongoing system maintenance, repair, and legacy design support.

Substiute Parts

DM74ALS576AN

onsemiIn Stock: 1929DM74ALS576AN Datasheet

Current PartRFQ

SN74ALS576BN

Texas InstrumentsIn Stock: 2477SN74ALS576BN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DM74ALS576AN is determined by strict equivalence across the following critical parameters:

• Functional Type: D-Type flip-flop with single element, 8-bit configuration
• Output Configuration: Tri-state, inverted output
• Electrical Performance: Clock frequency of 30 MHz, propagation delay of 14ns @ 5V with 50pF load
• Trigger Mechanism: Positive edge triggering
• Supply Voltage: 4.5V to 5.5V operating range
• Quiescent Current: 18 mA
• Output Current Ratings: 2.6mA (high), 24mA (low)
• Operating Temperature Range: 0°C to 70°C
• Package Format: 20-DIP (0.300", 7.62mm) through-hole mounting

The SN74ALS576BN from Texas Instruments meets all specified parameters and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The SN74ALS576BN from Texas Instruments is the qualified substitute for the obsolete DM74ALS576AN. Both components share identical electrical specifications, functional characteristics, and physical packaging. The primary distinction is product status: the DM74ALS576AN is obsolete, while the SN74ALS576BN maintains active production status. The SN74ALS576BN carries RoHS3 compliance certification, providing enhanced environmental and regulatory alignment for new designs and system updates. Both components are REACH unaffected and classified under ECCN EAR99. The through-hole 20-DIP package format ensures direct mechanical and electrical compatibility in existing PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the SN74ALS576BN directly replace the DM74ALS576AN in existing circuits?

A: Yes. Both components are electrically and mechanically identical across all specified parameters. The 20-DIP through-hole package format, pin configuration, and electrical performance characteristics are equivalent. Direct substitution is supported without circuit modification.

Q: What is the significance of the product status difference between these parts?

A: The DM74ALS576AN is classified as obsolete, indicating onsemi has discontinued production. The SN74ALS576BN maintains active production status from Texas Instruments, ensuring ongoing availability for procurement and supply chain continuity.

Q: Are there compliance or certification differences between these substitutes?

A: The SN74ALS576BN carries RoHS3 compliance certification, while the DM74ALS576AN does not specify RoHS status. Both components are REACH unaffected. For applications requiring RoHS compliance, the SN74ALS576BN is the appropriate selection.

Q: Do these components require any PCB layout modifications for substitution?

A: No. Both components use identical 20-DIP (0.300", 7.62mm) through-hole packaging. PCB footprints, pin spacing, and mounting requirements are equivalent. No layout changes are necessary.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: D-type flip-flop configuration with 8-bit single element, tri-state inverted output, 30 MHz clock frequency, 14ns propagation delay at 5V with 50pF load, positive edge triggering, 4.5V to 5.5V supply voltage, 18 mA quiescent current, and 0°C to 70°C operating temperature range.