DM74ALS576AWM Equivalent & Substitute Parts

Part Overview

The DM74ALS576AWM is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit capacity and tri-state inverted output configuration. This component operates at a maximum clock frequency of 30 MHz with a propagation delay of 14 ns at 5V with 50 pF load. The part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

DM74ALS576AWM

onsemiIn Stock: 1000DM74ALS576AWM Datasheet

Current PartRFQ

SN74ALS576BDW

Texas InstrumentsIn Stock: 1122SN74ALS576BDW Datasheet

DirectRFQ

SN74ALS576BDWR

Texas InstrumentsIn Stock: 3692SN74ALS576BDWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS576AWM are qualified based on strict electrical and mechanical parameter equivalence within the 74ALS logic series. The following criteria determine substitution validity:

Critical Matching Parameters:

• D-Type flip-flop architecture with 1 element, 8-bit configuration
• Tri-state, inverted output type
• Positive edge trigger mechanism
• 30 MHz clock frequency specification
• 14 ns maximum propagation delay at 5V, 50 pF load
• 4.5V to 5.5V supply voltage range
• Output current specifications: 2.6 mA (high), 24 mA (low)
• 18 mA quiescent current
• 0°C to 70°C operating temperature range
• 20-SOIC surface mount package with identical physical dimensions

The substitute parts SN74ALS576BDW and SN74ALS576BDWR, both manufactured by Texas Instruments, meet all electrical and mechanical requirements for direct substitution. Differences in product status and packaging format (tube versus tape & reel) do not affect functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the DM74ALS576AWM, the SN74ALS576BDWR is the preferred substitute due to its active product status and ROHS3 compliance. This part is available in tape & reel packaging and maintains full electrical and mechanical compatibility with the original design.

The SN74ALS576BDW serves as an alternative substitute with identical electrical specifications and ROHS3 compliance, though its last-time-buy status indicates limited future availability. This part is supplied in tube packaging.

Both Texas Instruments substitutes provide equivalent performance characteristics and are suitable for direct board-level replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS576BDW and SN74ALS576BDWR be used interchangeably with DM74ALS576AWM?

A: Yes. Both parts meet all electrical and mechanical specifications required for direct substitution. The difference between them is packaging format (tube versus tape & reel) and product lifecycle status, not functional performance.

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

A: SN74ALS576BDWR carries an active status, indicating ongoing production and long-term availability. SN74ALS576BDW is designated last-time-buy, meaning production will cease and inventory will be depleted. For new designs, SN74ALS576BDWR is the recommended choice.

Q: Are there any compliance differences between the original and substitute parts?

A: The substitute parts from Texas Instruments are ROHS3 compliant. The original onsemi part does not specify RoHS status. Both parts are REACH unaffected and carry EAR99 ECCN classification.

Q: Does the 20-SOIC package dimension remain identical across all three parts?

A: Yes. All three parts use the 20-SOIC package with 0.295" width and 7.50 mm width specification, ensuring identical PCB footprint and mounting compatibility.

Q: What are the key electrical parameters that must match for substitution?

A: Critical parameters include 30 MHz clock frequency, 14 ns propagation delay at 5V with 50 pF load, tri-state inverted output configuration, positive edge trigger, 4.5V to 5.5V supply range, and 8-bit D-type flip-flop architecture with single element configuration.