SN74LS244N Equivalent & Substitute Parts

Part Overview

The SN74LS244N is a Buffer, Non-Inverting logic IC manufactured by Texas Instruments, designed for 3-State output applications in digital systems. This 20-PDIP package 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 Active in product status with full ROHS3 compliance and REACH Unaffected certification. Equivalent substitute parts are identified when all critical electrical and mechanical parameters match the original specification, ensuring direct functional replacement without circuit redesign.

Substiute Parts

SN74LS244N

Texas InstrumentsIn Stock: 4287SN74LS244N Datasheet

Current PartRFQ

SN74LS241N

Texas InstrumentsIn Stock: 20431SN74LS241N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LS244N are identified based on matching the following critical parameters:

• 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-DIP (0.300", 7.62mm)
• Mounting Type: Through Hole
• Product Status: Active
• RoHS Status: ROHS3 Compliant

The SN74LS241N meets all these criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the SN74LS244N and SN74LS241N are Active products from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts is based on availability and inventory status. The SN74LS241N currently maintains higher inventory levels (20,400 Pcs) compared to the SN74LS244N (4,200 Pcs). Both parts carry ROHS3 compliance and REACH Unaffected certification, meeting current regulatory requirements for electronic component procurement.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS241N directly replace the SN74LS244N in existing designs?

A: Yes. The SN74LS241N is a parametric equivalent with identical logic type, element configuration, output characteristics, supply voltage range, operating temperature range, and package specifications. Direct substitution is supported without circuit modification.

Q: Are there any differences in pin configuration between these parts?

A: Both parts use the 20-DIP (0.300", 7.62mm) package with Through Hole mounting. Pin configuration compatibility is maintained for direct board-level substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74LS244N and SN74LS241N are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory requirements.

Q: What output current specifications apply to these buffers?

A: Both parts deliver 15mA output high current and 24mA output low current, supporting equivalent load-driving capability in 3-State output applications.

Q: Are these parts suitable for 5V logic systems?

A: Yes. Both parts operate within the 4.75V to 5.25V supply voltage range, providing full compatibility with standard 5V digital logic systems.