SN74LS244NE4 Equivalent & Substitute Parts

Part Overview

The SN74LS244NE4 is a non-inverting buffer IC manufactured by Texas Instruments, designed for logic-level signal buffering applications. This device features 2 elements with 4 bits per element and 3-state output capability, operating within the 4.75V to 5.25V supply voltage range. The part is currently discontinued at DiGi Electronics, making identification of equivalent substitute components essential for ongoing system support and procurement.

Substiute Parts

SN74LS244NE4

Texas InstrumentsIn Stock: 1261SN74LS244NE4 Datasheet

Current PartRFQ

SN74LS241N

Texas InstrumentsIn Stock: 20431SN74LS241N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74LS244NE4 are identified based on strict parametric equivalence across the following critical criteria:

Logic Function & Architecture: Buffer, Non-Inverting configuration with identical 2 elements and 4 bits per element structure

Output Characteristics: 3-State output capability with matching current specifications (15mA output high, 24mA output low)

Electrical Performance: Supply voltage range of 4.75V ~ 5.25V and operating temperature range of 0°C ~ 70°C

Physical Form Factor: 20-DIP package with 0.300" (7.62mm) pitch for through-hole mounting compatibility

Compliance & Certification: ROHS3 compliance and matching regulatory status (REACH Unaffected, EAR99 classification)

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS241N serves as a direct parametric equivalent to the SN74LS244NE4. Both components share identical electrical specifications, functional architecture, and physical packaging. The primary distinction is product status: the SN74LS244NE4 is discontinued at DiGi Electronics, while the SN74LS241N maintains active status with 20,400 pieces in stock.

For applications currently using the SN74LS244NE4, the SN74LS241N provides continuity of supply without design modification. Both parts maintain ROHS3 compliance and equivalent regulatory certifications (REACH Unaffected, EAR99 classification), ensuring compatibility with existing procurement and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS241N directly replace the SN74LS244NE4 in existing designs?

A: Yes. The SN74LS241N is a parametric equivalent with identical logic function, output characteristics, electrical performance, and 20-DIP package configuration. No circuit modifications are required.

Q: What is the primary reason for substitution?

A: The SN74LS244NE4 is discontinued at DiGi Electronics. The SN74LS241N maintains active product status with established supply availability.

Q: Are there any differences in compliance or certifications?

A: No. Both parts are ROHS3 compliant, REACH Unaffected, and classified as EAR99. Regulatory and environmental compliance requirements are identical.

Q: Does the packaging differ between these parts?

A: No. Both components use the 20-DIP (0.300", 7.62mm) package with through-hole mounting. PCB layout and assembly processes remain unchanged.

Q: Are the electrical specifications identical?

A: Yes. Supply voltage range (4.75V ~ 5.25V), operating temperature (0°C ~ 70°C), output current (15mA high, 24mA low), and all functional parameters are identical.