SN74LS241DW Equivalent & Substitute Parts

Part Overview

The SN74LS241DW is a Buffer, Non-Inverting logic IC manufactured by Texas Instruments, featuring 2 elements with 4 bits per element and 3-state output capability. This 20-SOIC surface mount device operates within the 4.75V to 5.25V supply voltage range and is rated for 0°C to 70°C operating temperature. The part is currently in Last Time Buy status, making identification of equivalent and substitute components essential for design continuity and procurement planning.

Substiute Parts

SN74LS241DW

Texas InstrumentsIn Stock: 1515SN74LS241DW Datasheet

Current PartRFQ

SN74LS241DWR

Texas InstrumentsIn Stock: 1229SN74LS241DWR Datasheet

MFR RecommendedRFQ

SN74LS244DW

Texas InstrumentsIn Stock: 2000239SN74LS244DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LS241DW are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 2
• Number of Bits per Element: 4
• Output Type: 3-State
• Current - Output High, Low: 15mA, 24mA
• Voltage - Supply: 4.75V ~ 5.25V
• Operating Temperature: 0°C ~ 70°C (TA)
• Package / Case: 20-SOIC (0.295", 7.50mm Width)
• Mounting Type: Surface Mount

Packaging Variants: Substitutes may differ in packaging format (Tube vs. Tape & Reel) without affecting functional compatibility, as both are 20-SOIC surface mount packages with identical pinouts and electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

SN74LS241DWR (MFR Recommended Substitute): This part is the direct equivalent of SN74LS241DW with identical electrical and mechanical specifications. The primary difference is packaging format (Tape & Reel vs. Tube) and Active product status. Selection of SN74LS241DWR is appropriate for applications requiring long-term availability and supply chain continuity, as it maintains Active status with Texas Instruments.

SN74LS244DW (Parametric Equivalent): This part matches all critical electrical parameters and package specifications of the SN74LS241DW. Both parts are Last Time Buy status devices. SN74LS244DW offers significantly higher inventory availability (2,000,200 pcs vs. 1,456 pcs), making it suitable for high-volume production requirements where supply security is a priority.

All substitute parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SN74LS241DWR be used as a direct replacement for SN74LS241DW? A: Yes. SN74LS241DWR is electrically and mechanically identical to SN74LS241DW. The only difference is packaging format (Tape & Reel vs. Tube). Both are 20-SOIC surface mount packages with identical pinouts and electrical specifications.

Q: What is the difference between Tube and Tape & Reel packaging? A: Tube and Tape & Reel are packaging and delivery formats only. They do not affect the component's electrical performance or physical dimensions. Tube packaging is typically used for lower-volume orders, while Tape & Reel is standard for automated assembly and higher-volume production.

Q: Is SN74LS244DW compatible with SN74LS241DW in circuit applications? A: Yes. SN74LS244DW meets all critical electrical parameters: 2 elements, 4 bits per element, 3-state output, 15mA/24mA output current, 4.75V–5.25V supply voltage, and 0°C–70°C operating temperature. The 20-SOIC package and pinout are identical.

Q: Why is SN74LS241DW in Last Time Buy status? A: Last Time Buy status indicates the manufacturer is discontinuing the part. Identifying equivalent substitutes ensures design continuity and supply chain planning. SN74LS241DWR (Active status) is the recommended long-term alternative.

Q: Are all substitute parts RoHS3 compliant? A: Yes. SN74LS241DW, SN74LS241DWR, and SN74LS244DW are all ROHS3 compliant with MSL Level 1 rating, meeting standard environmental and manufacturing requirements.

Q: Which substitute should I select for new designs? A: For new designs, SN74LS241DWR is recommended due to its Active product status and long-term availability from Texas Instruments. For existing designs requiring immediate high-volume supply, SN74LS244DW offers superior inventory availability.