SN74LS241DWR Equivalent & Substitute Parts

Part Overview

The SN74LS241DWR is a Buffer, Non-Inverting logic IC manufactured by Texas Instruments, designed for 3-State output applications. This 20-SOIC surface mount device operates within the 4.75V to 5.25V supply voltage range and is classified as Active product status. The device features 2 elements with 4 bits per element, providing 15mA high output current and 24mA low output current capability. Finding equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate packaging or inventory preferences while maintaining identical electrical and mechanical performance.

Substiute Parts

SN74LS241DWR
Texas InstrumentsIn Stock: 1229SN74LS241DWR Datasheet
SN74LS241DWR
Current Part
SN74LS244DWR
Texas InstrumentsIn Stock: 9925SN74LS244DWR Datasheet
SN74LS244DWR
Parametric Equivalent

Key Parameters

Parameter Value
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
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SN74LS241DWR are identified based on strict parametric equivalence across the following critical criteria:

Logic function and output configuration (Buffer, Non-Inverting with 3-State output), element and bit count (2 elements, 4 bits per element), output current specifications (15mA high, 24mA low), supply voltage range (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), package type (20-SOIC), and mounting method (Surface Mount). All substitute parts maintain identical electrical performance and physical form factor, ensuring direct functional replacement in circuit designs. Packaging format differences (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical or mechanical compatibility and reflect only supply chain or procurement variations.

Parameter Comparison

Parameter SN74LS241DWR SN74LS244DWR
Manufacturer Texas Instruments Texas Instruments
Series 74LS 74LS
Logic Type Buffer, Non-Inverting Buffer, Non-Inverting
Number of Elements 2 2
Number of Bits per Element 4 4
Output Type 3-State 3-State
Current - Output High, Low 15mA, 24mA 15mA, 24mA
Voltage - Supply 4.75V ~ 5.25V 4.75V ~ 5.25V
Operating Temperature 0°C ~ 70°C (TA) 0°C ~ 70°C (TA)
Package / Case 20-SOIC (0.295", 7.50mm Width) 20-SOIC (0.295", 7.50mm Width)
Mounting Type Surface Mount Surface Mount
Product Status Active Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

Both the SN74LS241DWR and SN74LS244DWR are Active product status components manufactured by Texas Instruments, ensuring ongoing support and availability. Both parts maintain full ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. Selection between these parts should be based on packaging format availability and supply chain requirements. The SN74LS241DWR is supplied in Tape & Reel format, while the SN74LS244DWR is available in Cut Tape & Digi-Reel format. Inventory levels and procurement lead times may also influence part selection, with the SN74LS244DWR currently showing higher stock availability (9825 Pcs versus 1125 Pcs).

Frequently Asked Questions (FAQ)

Q: Can the SN74LS244DWR be used as a direct replacement for the SN74LS241DWR?

A: Yes. Both parts are parametrically equivalent across all electrical and mechanical specifications, including logic function, output configuration, current ratings, voltage supply range, operating temperature, and 20-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Tape & Reel and Cut Tape & Digi-Reel are supply format variations that do not affect the electrical or mechanical properties of the component. These formats reflect different procurement and handling methods. Tape & Reel is typically used for high-volume automated assembly, while Cut Tape & Digi-Reel provides flexibility for lower-volume or mixed-component orders.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the SN74LS241DWR and SN74LS244DWR maintain identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level (MSL) ratings. Regulatory and environmental compliance is equivalent across both parts.

Q: What factors should determine which substitute part to select?

A: Selection should be based on packaging format preference, current inventory availability, and supply chain lead times. Since electrical and mechanical specifications are identical, procurement considerations and packaging format compatibility with assembly processes are the primary decision factors.

Q: Is the 20-SOIC package identical for both parts?

A: Yes. Both parts use the identical 20-SOIC package with 0.295" width and 7.50mm physical dimensions. PCB footprint and mounting requirements are identical, ensuring seamless integration in existing designs.

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