DM74ALS541SJ Equivalent & Substitute Parts

Part Overview

The DM74ALS541SJ is a non-inverting buffer logic IC manufactured by onsemi, featuring 1 element with 8 bits per element and 3-state output capability. Designed for 4.5V to 5.5V supply operation with 0°C to 70°C operating temperature range, this component is classified as obsolete. Due to its obsolete status and limited availability from the original manufacturer, identifying functionally equivalent alternatives from active product lines is essential for design continuity and procurement reliability.

Substiute Parts

DM74ALS541SJ

onsemiIn Stock: 7813DM74ALS541SJ Datasheet

Current PartRFQ

SN74ALS541NSR

Texas InstrumentsIn Stock: 2314SN74ALS541NSR Datasheet

DirectRFQ

SN74ALS541-1DW

Texas InstrumentsIn Stock: 1569SN74ALS541-1DW Datasheet

SimilarRFQ

SN74ALS541-1NSR

Texas InstrumentsIn Stock: 6771SN74ALS541-1NSR Datasheet

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SN74ALS541DW

Texas InstrumentsIn Stock: 3067SN74ALS541DW Datasheet

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SN74ALS541DWR

Texas InstrumentsIn Stock: 2176SN74ALS541DWR Datasheet

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SN74ALS541NS

Texas InstrumentsIn Stock: 3223SN74ALS541NS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DM74ALS541SJ are classified based on strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• Output Type: 3-State
• Voltage Supply Range: 4.5V ~ 5.5V
• Operating Temperature: 0°C ~ 70°C (TA)
• Mounting Type: Surface Mount
• Series: 74ALS
• Base Product Number: 74ALS541

Acceptable Variations:

• Current Output specifications (15mA/24mA or 15mA/48mA)
• Package/Case dimensions (20-SOIC 0.209" or 20-SOIC 0.295" width)
• Supplier Device Package designation (20-SOP, 20-SO, 20-SOIC)
• Packaging format (Cut Tape, Tube, Tape & Reel)
• Product Status (Active, Last Time Buy, or Obsolete)
• RoHS compliance status

All substitute parts maintain identical functional performance within the specified electrical parameters and are sourced from Texas Instruments, ensuring design compatibility and interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation - Active Status: SN74ALS541NSR and SN74ALS541-1NSR are the preferred substitutes, both manufactured by Texas Instruments with Active product status. SN74ALS541NSR provides exact electrical parameter matching (15mA/24mA output current) with 20-SOIC 0.209" package compatibility. SN74ALS541-1NSR offers enhanced output low current capability (48mA) in the same package footprint, suitable for applications requiring higher drive capability.

Secondary Recommendation - Last Time Buy Status: SN74ALS541DW and SN74ALS541NS remain available but carry Last Time Buy status, indicating limited future availability. These parts maintain full electrical and thermal compatibility but should be considered only when Active alternatives are unavailable or when existing inventory management strategies require their use.

Package Consideration: SN74ALS541DW and SN74ALS541DWR feature 20-SOIC 0.295" width package, differing from the original 0.209" width. Verify PCB layout compatibility before selection. SN74ALS541DWR in Tape & Reel packaging provides the same electrical performance as SN74ALS541DW with alternative packaging format.

Compliance Status: All Texas Instruments substitutes are ROHS3 Compliant and REACH Unaffected, meeting modern regulatory requirements. The original onsemi part carries REACH Unaffected status but lacks RoHS certification due to its obsolete classification.

Frequently Asked Questions (FAQ)

Q: Can SN74ALS541-1DW and SN74ALS541-1NSR be used interchangeably with DM74ALS541SJ?

A: Yes, both parts are functionally equivalent. The primary difference is output low current specification (48mA versus 24mA). SN74ALS541-1DW uses 20-SOIC 0.295" package width, while SN74ALS541-1NSR uses 20-SOIC 0.209" width matching the original. Verify PCB footprint compatibility before selection.

Q: What is the difference between 20-SO and 20-SOIC package designations?

A: Both designations refer to 20-pin Small Outline IC packages. The variation in width (0.209" versus 0.295") reflects different manufacturing standards. Confirm PCB pad layout compatibility with the selected part's specific package dimensions.

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

A: Output current specifications vary: parts rated 15mA/24mA match the original exactly, while 15mA/48mA variants provide higher output low current capability. All parts maintain identical supply voltage range (4.5V ~ 5.5V), operating temperature (0°C ~ 70°C), and logic functionality.

Q: Why should I avoid Last Time Buy parts?

A: Last Time Buy status indicates the manufacturer will discontinue production after current inventory is exhausted. For long-term design support and future procurement, Active status parts ensure continued availability and supply chain stability.

Q: Is the packaging format (Tube, Tape & Reel, Cut Tape) important for circuit functionality?

A: Packaging format does not affect electrical performance or circuit functionality. Selection depends on assembly process requirements and inventory management practices. Tape & Reel packaging is standard for automated assembly, while Tube packaging suits manual or small-batch operations.

Q: Are all substitute parts RoHS compliant?

A: All Texas Instruments substitutes are ROHS3 Compliant. The original onsemi DM74ALS541SJ does not carry RoHS certification due to its obsolete status. For applications requiring RoHS compliance, select from the Texas Instruments alternatives.