74LVC841ADB,118 Equivalent & Substitute Parts

Part Overview

The 74LVC841ADB,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-SSOP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates across a supply voltage range of 2.7V to 3.6V with a propagation delay of 1.5ns and supports output currents of 24mA for both high and low states.

Substiute Parts

74LVC841ADB,118

NXP USA Inc.In Stock: 98374LVC841ADB,118 Datasheet

Current PartRFQ

SN74LVC841ADBR

Texas InstrumentsIn Stock: 764SN74LVC841ADBR Datasheet

MFR RecommendedRFQ

SN74LVC841APW

Texas InstrumentsIn Stock: 788SN74LVC841APW Datasheet

MFR RecommendedRFQ

SN74LVC841APWR

Texas InstrumentsIn Stock: 18236SN74LVC841APWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74LVC841ADB,118 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Electrical Parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 10:10
• Output Type: Tri-State
• Independent Circuits: 1
• Current - Output High, Low: 24mA, 24mA

Voltage and Temperature Considerations: The original part operates at 2.7V ~ 3.6V supply voltage. Substitute parts with extended lower voltage ratings (1.65V ~ 3.6V) are compatible, as they support the original operating range and provide additional design flexibility for lower-voltage applications.

Package and Mounting: Substitutes are grouped by package type: 24-SSOP (original package) and 24-TSSOP (alternative package). Both are surface-mount packages with identical pin counts and compatible footprints for the 74LVC841 series.

Product Status and Compliance: All substitute parts are classified as Active, ensuring ongoing availability and support. All parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, meeting modern manufacturing and environmental standards.

Parameter Comparison

Engineering Selection Recommendations

For Direct Package Replacement (24-SSOP): The SN74LVC841ADBR from Texas Instruments provides a direct substitute with identical 24-SSOP packaging. This part maintains the same physical footprint and pin configuration, enabling board-level compatibility without layout modifications. The extended lower voltage rating (1.65V ~ 3.6V) supports the original 2.7V ~ 3.6V operating range. Product status is Active, ensuring long-term availability and manufacturing support.

For Alternative Package Options (24-TSSOP): The SN74LVC841APW and SN74LVC841APWR offer 24-TSSOP packaging, which provides a narrower package footprint (0.173" versus 0.209" width). Both parts are functionally equivalent with identical electrical specifications. The SN74LVC841APWR in Tape & Reel packaging offers the highest inventory availability (18,130 pcs) and is suitable for high-volume production environments.

Propagation Delay Consideration: All Texas Instruments substitutes exhibit a propagation delay of 2.7ns compared to the original 1.5ns specification. This 1.2ns difference must be evaluated against system timing requirements. For applications with timing-critical signal paths, this parameter difference requires circuit-level analysis.

Temperature Range Consideration: Substitute parts operate across -40°C to 85°C, compared to the original -40°C to 125°C range. For applications requiring operation above 85°C, the original NXP part specification must be maintained or alternative solutions evaluated.

Compliance and Availability: All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Active product status ensures ongoing support from Texas Instruments for procurement, technical documentation, and manufacturing consistency.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC841ADBR replace 74LVC841ADB,118 without PCB modifications? A: Yes. The SN74LVC841ADBR maintains identical 24-SSOP packaging and pin configuration, enabling direct substitution without PCB layout changes. Electrical specifications are compatible within the original operating range.

Q: What is the difference between 24-SSOP and 24-TSSOP packages? A: Both are surface-mount packages with 24 pins and identical pin pitch. The primary difference is package width: 24-SSOP measures 0.209" (5.30mm) while 24-TSSOP measures 0.173" (4.40mm). The narrower TSSOP package reduces board footprint but requires compatible PCB design. Pin assignments and electrical function remain identical.

Q: Why do substitute parts have higher propagation delay (2.7ns vs 1.5ns)? A: Propagation delay differences reflect manufacturing process variations between NXP and Texas Instruments. The 1.2ns increase must be evaluated against system timing budgets. For timing-critical applications, circuit-level analysis is required to confirm compatibility.

Q: Are all substitute parts suitable for high-volume production? A: Yes. All substitute parts are classified as Active with established supply chains. The SN74LVC841APWR in Tape & Reel packaging offers the highest inventory availability (18,130 pcs) and is optimized for automated assembly in high-volume environments.

Q: What is the voltage compatibility range for substitutes? A: Substitute parts support 1.65V ~ 3.6V supply voltage, which encompasses the original 2.7V ~ 3.6V range. The extended lower voltage rating provides additional design flexibility for lower-voltage system applications while maintaining full compatibility with the original specification.

Q: Do substitute parts meet current environmental and compliance standards? A: Yes. All substitute parts are ROHS3 compliant and REACH unaffected, meeting current manufacturing and environmental regulations. Moisture Sensitivity Level 1 (Unlimited) indicates no special handling requirements during storage or assembly.

Q: What is the operating temperature range for substitute parts? A: Substitute parts operate across -40°C to 85°C. The original part supports -40°C to 125°C. For applications requiring operation above 85°C, the original NXP specification must be maintained or alternative component solutions evaluated.