74LVC841AD,118 Equivalent & Substitute Parts

Part Overview

The 74LVC841AD,118 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,118

NXP USA Inc.In Stock: 99574LVC841AD,118 Datasheet

Current PartRFQ

SN74LVC841ADW

Texas InstrumentsIn Stock: 1755SN74LVC841ADW Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC841AD,118 is determined by the following critical parameters:

• Logic Type & Circuit Configuration: Must be D-Type Transparent Latch with 10:10 circuit configuration
• Output Type: Must provide tri-state output capability
• Package Compatibility: Must use 24-SOIC surface mount package with identical 0.295" (7.50mm) width
• Electrical Compatibility: Supply voltage range, output current ratings, and propagation delay must support the application requirements
• Compliance & Status: RoHS3 compliance and active product status preferred for long-term availability

The SN74LVC841ADW from Texas Instruments meets all substitution criteria, sharing identical logic architecture, circuit configuration, output type, and package specifications while maintaining full electrical compatibility within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The SN74LVC841ADW from Texas Instruments is the direct functional equivalent for the obsolete 74LVC841AD,118. Selection should be based on the following engineering criteria:

Primary Recommendation: SN74LVC841ADW is suitable for applications where the NXP part is no longer available. The substitute maintains identical logic functionality, circuit configuration, output characteristics, and package form factor.

Operational Considerations: The Texas Instruments part exhibits a longer propagation delay (2.7ns versus 1.5ns) and a reduced maximum operating temperature ceiling (85°C versus 125°C). These differences must be evaluated against specific application timing requirements and thermal operating conditions. The wider supply voltage range (1.65V ~ 3.6V) of the TI part provides additional design flexibility for lower voltage applications.

Compliance & Availability: Both parts maintain ROHS3 compliance and REACH unaffected status. The SN74LVC841ADW carries active product status, ensuring continued availability and supply chain stability compared to the obsolete NXP component.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC841ADW directly replace the 74LVC841AD,118 in existing designs?

A: Yes, the SN74LVC841ADW provides direct functional replacement. Both parts share identical logic type, circuit configuration (10:10), tri-state output capability, and 24-SOIC package specifications. Pin-to-pin compatibility is maintained, allowing direct PCB substitution without layout modifications.

Q: What are the key differences between these parts?

A: The primary differences are propagation delay (1.5ns for NXP versus 2.7ns for TI), maximum operating temperature (125°C for NXP versus 85°C for TI), and supply voltage range (2.7V–3.6V for NXP versus 1.65V–3.6V for TI). Output current ratings and package specifications remain identical.

Q: Should I be concerned about the longer propagation delay of the TI part?

A: The 1.2ns difference in propagation delay is application-dependent. For timing-critical circuits operating near maximum frequency specifications, this difference must be verified against system timing budgets. For most general-purpose latch applications, this delay difference is negligible.

Q: Are there temperature operating range limitations with the SN74LVC841ADW?

A: The Texas Instruments part is rated to 85°C maximum, compared to 125°C for the NXP part. Applications requiring operation above 85°C ambient temperature or with significant thermal margins must account for this reduced specification.

Q: Is the 24-SOIC package identical between both parts?

A: Yes, both parts use the 24-SOIC package with 0.295" (7.50mm) width. Package dimensions, pin pitch, and land pattern are identical, ensuring mechanical and electrical compatibility on the PCB.

Q: Do both parts meet current RoHS and REACH requirements?

A: Yes, both the 74LVC841AD,118 and SN74LVC841ADW are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.