74LVC841AD,112 Equivalent & Substitute Parts

Part Overview

The 74LVC841AD,112 is a D-Type Transparent Latch logic IC manufactured by NXP USA Inc., featuring a 10:10 circuit configuration with tri-state output capability in a 24-SOIC surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across a 2.7V to 3.6V supply voltage range with a propagation delay of 1.5ns and supports output currents of 24mA for both high and low states.

Substiute Parts

74LVC841AD,112

NXP USA Inc.In Stock: 95174LVC841AD,112 Datasheet

Current PartRFQ

SN74LVC841ADW

Texas InstrumentsIn Stock: 1755SN74LVC841ADW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC841AD,112 is determined by strict alignment of the following critical parameters:

• Logic type and circuit configuration (D-Type Transparent Latch, 10:10)
• Output type (Tri-State)
• Package and pinout compatibility (24-SOIC)
• Supply voltage range overlap (minimum 2.7V operation required)
• Output current capability (24mA minimum for both states)
• RoHS and environmental compliance status

The SN74LVC841ADW from Texas Instruments meets these substitution criteria as an active product within the same 74LVC logic family, sharing identical circuit topology and package specifications.

Parameter Comparison

Engineering Selection Recommendations

The SN74LVC841ADW represents the primary substitute for the obsolete 74LVC841AD,112. Selection should be based on the following engineering criteria:

Product Availability: The SN74LVC841ADW maintains active production status with documented inventory availability, whereas the NXP part is obsolete. For new designs and ongoing procurement, the Texas Instruments part ensures supply chain continuity.

Compliance Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for equivalent applications.

Operational Parameters: The SN74LVC841ADW operates across a wider supply voltage range (1.65V ~ 3.6V) compared to the NXP specification (2.7V ~ 3.6V), providing enhanced flexibility for low-voltage applications. The propagation delay difference (2.7ns versus 1.5ns) is acceptable for most digital logic applications where timing margins exceed 1.2ns.

Temperature Derating: Applications requiring operation above 85°C must evaluate the reduced maximum operating temperature of the TI part (85°C versus 125°C for the NXP original). For standard industrial temperature ranges (-40°C to 85°C), the substitute is fully qualified.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC841ADW directly replace the 74LVC841AD,112 in existing designs?

A: Yes, for applications operating within -40°C to 85°C and where the 2.7ns propagation delay is acceptable. Pin-for-pin compatibility and identical package specifications ensure direct substitution. Verify that your circuit timing margins accommodate the slower propagation delay.

Q: What is the primary reason for substitution?

A: The 74LVC841AD,112 is classified as obsolete. The SN74LVC841ADW is an active product from Texas Instruments within the same 74LVC logic family, ensuring long-term availability and supply chain reliability.

Q: Are there any electrical parameter differences that affect circuit operation?

A: The SN74LVC841ADW supports a lower minimum supply voltage (1.65V versus 2.7V), which is advantageous. The propagation delay is 1.2ns slower, which may require timing verification in high-speed applications. Output current ratings remain identical at 24mA.

Q: Does the package remain the same?

A: Yes. Both parts use the 24-SOIC (0.295", 7.50mm width) surface mount package with identical pinout and mechanical specifications.

Q: Are both parts RoHS compliant?

A: Yes. Both the 74LVC841AD,112 and SN74LVC841ADW are ROHS3 compliant with MSL rating of 1 (Unlimited), meeting current environmental standards.

Q: What should I verify before implementing the substitute?

A: Confirm that your application's operating temperature range does not exceed 85°C, and verify that circuit timing paths accommodate the 2.7ns propagation delay specification of the Texas Instruments part.