74LVC823APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC823APW,112 is a single-element D-type flip-flop with 9-bit configuration and tri-state, non-inverted output, manufactured by Nexperia USA Inc. in 24-TSSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The 74LVC series operates across a wide voltage range (1.65V to 3.6V) and supports positive edge triggering with master reset functionality, suitable for digital logic applications requiring high-speed data capture and storage.

Substiute Parts

74LVC823APW,112

Nexperia USA Inc.In Stock: 78374LVC823APW,112 Datasheet

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SN74LVC821ADGVR

Texas InstrumentsIn Stock: 881SN74LVC821ADGVR Datasheet

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SN74LVC823APW

Texas InstrumentsIn Stock: 784SN74LVC823APW Datasheet

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SN74LVC823APWR

Texas InstrumentsIn Stock: 3398SN74LVC823APWR Datasheet

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SN74LVC823APWT

Texas InstrumentsIn Stock: 2094SN74LVC823APWT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74LVC823APW,112 is determined by the following critical parameters:

Primary Substitution Criteria:

• D-Type flip-flop architecture with positive edge triggering
• Tri-state, non-inverted output configuration
• Master reset function
• 24-TSSOP or compatible surface mount package
• Supply voltage range: 1.65V ~ 3.6V
• Output drive capability: 24 mA minimum
• Quiescent current: 10 µA maximum
• Input capacitance: 5 pF

Secondary Compatibility Factors:

• Clock frequency performance (minimum 150 MHz acceptable)
• Propagation delay specifications
• Operating temperature range (-40°C minimum)
• RoHS3 compliance and MSL rating

Substitute parts are grouped into two categories: direct equivalents (identical bit configuration) and functional alternatives (10-bit configuration with compatible electrical characteristics).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalents (9-Bit Configuration):

SN74LVC823APW, SN74LVC823APWR, and SN74LVC823APWT are functionally equivalent to the 74LVC823APW,112. All three are manufactured by Texas Instruments with active product status, ensuring long-term availability and supply chain stability. These parts maintain identical bit configuration, output type, and electrical characteristics within acceptable tolerances. The primary differences are packaging format (Tube vs. Tape & Reel) and inventory availability. All three meet ROHS3 compliance and MSL Level 1 requirements.

Functional Alternative (10-Bit Configuration):

SN74LVC821ADGVR is a 10-bit variant that provides enhanced data capture capability. While it introduces one additional bit, it maintains full electrical compatibility across supply voltage, output drive, quiescent current, and input capacitance specifications. The 24-TFSOP package is mechanically compatible with 24-TSSOP footprints. This option is suitable for applications where the additional bit capacity provides system-level benefits without compromising performance.

Operating Temperature Consideration:

The original 74LVC823APW,112 supports extended temperature operation (-40°C to 125°C). All Texas Instruments substitutes operate within -40°C to 85°C. Applications requiring operation above 85°C must retain the original Nexperia part or identify alternative solutions.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC823APW replace 74LVC823APW,112 directly?

A: Yes. Both are 9-bit D-type flip-flops with identical output type, trigger configuration, and electrical specifications. The primary difference is product status (Active vs. Obsolete) and manufacturer. Packaging is identical (24-TSSOP).

Q: What is the difference between SN74LVC823APWR and SN74LVC823APWT?

A: Both are functionally identical 9-bit flip-flops from Texas Instruments. The difference is packaging format: APWR is supplied in Tape & Reel (TR) format for automated assembly, while APWT is also Tape & Reel. Electrical performance and pin configuration are identical.

Q: Can I use SN74LVC821ADGVR as a substitute?

A: SN74LVC821ADGVR is a 10-bit variant with compatible electrical characteristics and package footprint. It can be used if the application can accommodate the additional bit. All critical parameters (supply voltage, output drive, quiescent current, input capacitance) are identical. Verify that the 10-bit configuration does not conflict with circuit design requirements.

Q: Are there temperature limitations with Texas Instruments substitutes?

A: Yes. Texas Instruments parts operate from -40°C to 85°C, while the original Nexperia part extends to 125°C. If your application requires operation above 85°C, the original part or alternative solutions must be evaluated.

Q: Do all substitute parts meet RoHS and compliance requirements?

A: Yes. All listed substitutes are ROHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity). REACH status is unaffected for all parts.

Q: What is the propagation delay difference, and does it matter?

A: The original part specifies 10 ns maximum propagation delay at 3.3V with 50 pF load. Texas Instruments substitutes specify 8 ns, which is faster. For most applications, faster propagation delay is beneficial and does not create compatibility issues. Verify timing margins in your specific circuit if critical path timing is a design constraint.

Q: Can I mix packaging formats (Tube vs. Tape & Reel) in production?

A: Packaging format affects assembly process compatibility. Tube packaging (SN74LVC823APW) is suitable for manual or semi-automated assembly. Tape & Reel formats (SN74LVC823APWR, SN74LVC823APWT) are optimized for high-volume automated pick-and-place assembly. Select based on your manufacturing process requirements.