DM74S241N Equivalent & Substitute Parts

Part Overview

The DM74S241N is a non-inverting buffer logic IC manufactured by onsemi, featuring 2 elements with 4 bits per element in a 20-DIP package. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates within the standard 5V logic family voltage range (4.75V to 5.25V) and is designed for through-hole mounting in legacy and industrial systems.

Substiute Parts

DM74S241N

onsemiIn Stock: 1916DM74S241N Datasheet

Current PartRFQ

SN74LS241N

Texas InstrumentsIn Stock: 20431SN74LS241N Datasheet

SimilarRFQ

SN74S241N

Texas InstrumentsIn Stock: 2144SN74S241N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the DM74S241N is determined by strict alignment of the following electrical and mechanical parameters:

• Logic function: Non-inverting buffer with identical element and bit configuration (2 elements, 4 bits per element)
• Package type: 20-DIP form factor with 0.300" (7.62mm) pitch
• Supply voltage range: 4.75V to 5.25V compatibility
• Operating temperature range: 0°C to 70°C
• Mounting method: Through-hole technology
• Output current specifications: Output high and low current ratings

The identified substitute parts maintain these core parameters while offering active product status and improved availability. Output type differences (standard vs. 3-State) do not prevent substitution when the application does not require tri-state functionality.

Parameter Comparison

Engineering Selection Recommendations

SN74S241N (Texas Instruments) is the primary substitute for the DM74S241N. Both parts belong to the 74S series with identical output current specifications (15mA, 64mA), ensuring direct functional equivalence. The SN74S241N maintains active product status with ROHS3 compliance and established supply chain availability (2100 pcs in stock).

SN74LS241N (Texas Instruments) serves as a secondary substitute when output current requirements are less stringent. The 74LS series operates within the same voltage and temperature parameters but provides reduced output low current (24mA vs. 64mA). This part is suitable for applications where lower drive current is acceptable and offers superior availability (20400 pcs in stock). Both Texas Instruments alternatives carry ROHS3 compliance and active product status, addressing the obsolescence of the original onsemi component.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS241N replace the DM74S241N in all applications?

A: The SN74LS241N is functionally compatible for logic-level buffering operations. The primary difference is output low current: 24mA (74LS) versus 64mA (74S). Applications requiring maximum output drive current should use the SN74S241N instead.

Q: Are there package compatibility concerns when substituting these parts?

A: No. All three parts use the 20-DIP package with 0.300" (7.62mm) pitch, ensuring identical PCB footprint and through-hole mounting compatibility.

Q: What is the significance of the 3-State output designation on the substitute parts?

A: The Texas Instruments substitutes include 3-State output capability, a superset feature that does not prevent their use in applications requiring standard buffering. When tri-state functionality is not utilized, these parts function as standard non-inverting buffers.

Q: Why is product status important for this substitution?

A: The DM74S241N is obsolete, creating supply chain risk. The SN74S241N and SN74LS241N maintain active status with established manufacturing and distribution channels, ensuring long-term component availability.

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

A: Yes. The substitute parts from Texas Instruments carry ROHS3 compliance certification. The original DM74S241N does not specify RoHS status. Both alternatives maintain REACH Unaffected status and EAR99 export classification.