SN74LS541NG4 Equivalent & Substitute Parts

Part Overview

The SN74LS541NG4 is a non-inverting buffer logic integrated circuit manufactured by Texas Instruments, designed for digital signal buffering applications. This device features 1 element with 8 bits per element and 3-state output capability, operating within a 4.75V to 5.25V supply voltage range. The part is currently discontinued at DiGi Electronics, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

SN74LS541NG4

Texas InstrumentsIn Stock: 851SN74LS541NG4 Datasheet

Current PartRFQ

SN74LS541N

Texas InstrumentsIn Stock: 17355SN74LS541N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS541NG4 is determined by strict equivalence across the following critical parameters:

• Logic Type: Buffer, Non-Inverting
• Number of Elements: 1
• Number of Bits per Element: 8
• 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

The SN74LS541N meets all these criteria and is classified as a manufacturer-recommended substitute. Both parts share the same base product number (74LS541) and are functionally identical in electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS541N is the direct substitute for the SN74LS541NG4. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The primary distinction is product status: the SN74LS541NG4 is discontinued, while the SN74LS541N remains in active production with significantly higher inventory availability (17,280 pieces in stock versus 743 pieces for the original part). For new designs or component replenishment, the SN74LS541N is the appropriate selection based on availability and ongoing manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS541N directly replace the SN74LS541NG4 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including logic function, output characteristics, supply voltage, operating temperature range, and 20-DIP package configuration.

Q: What is the difference between SN74LS541NG4 and SN74LS541N?

A: The parts are functionally equivalent. The primary difference is packaging format (the NG4 suffix indicates a specific packaging variant) and product status. The SN74LS541N is currently in active production with higher inventory availability.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance and REACH unaffected status, meeting the same environmental and regulatory standards.

Q: What does the 20-DIP package specification mean for component selection?

A: The 20-DIP (Dual In-line Package) with 0.300" (7.62mm) row spacing is a through-hole mounting format. Both the main part and substitute use this identical package, ensuring mechanical compatibility with existing PCB designs and sockets.

Q: Why is the SN74LS541NG4 discontinued?

A: The discontinuation reflects standard product lifecycle management. The SN74LS541N remains available as the active equivalent, providing continuity for applications requiring this buffer logic function.