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74LVC14AD,112 Equivalent & Substitute Parts
Part Overview
The 74LVC14AD,112 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This part operates across a supply voltage range of 1.2V to 3.6V with a maximum propagation delay of 6.4ns at 3.3V with 50pF load. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 74LVC14AD,112 |
| Manufacturer | Nexperia USA Inc. |
| Logic Type | Inverter |
| Number of Circuits | 6 |
| Number of Inputs | 1 |
| Features | Schmitt Trigger |
| Voltage - Supply | 1.2V ~ 3.6V |
| Current - Quiescent (Max) | 40 µA |
| Current - Output High, Low | 24mA, 24mA |
| Max Propagation Delay @ V, Max CL | 6.4ns @ 3.3V, 50pF |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution for the 74LVC14AD,112 is determined by the following critical parameters:
Functional Equivalence: All substitute parts must be 6-channel inverter ICs with Schmitt trigger inputs, matching the logic type and circuit count.
Package Compatibility: All parts must use the 14-SOIC surface mount package with 0.154" width (3.90mm) to ensure PCB footprint compatibility.
Electrical Performance: Substitute parts must support the required supply voltage range, output current capability (24mA minimum), and propagation delay specifications within acceptable design margins.
Compliance Requirements: All substitute parts must maintain ROHS3 compliance and MSL rating of 1 (Unlimited) to meet manufacturing and environmental standards.
Substitutes are grouped into two categories based on manufacturer and electrical characteristics:
Category 1 - Nexperia 74LVC Series: Direct manufacturer equivalents with identical electrical specifications and packaging. The 74LVC14AD,118 is the active production variant with identical performance parameters.
Category 2 - Texas Instruments 74LVC Series: Active production alternatives with enhanced specifications including lower quiescent current (1 µA vs 40 µA) and extended supply voltage range (1.65V ~ 3.6V). These parts offer superior performance while maintaining full functional compatibility.
Category 3 - onsemi 74LCX Series: Alternative manufacturer parts with compatible logic function and package. These parts operate within a narrower supply voltage range (2V ~ 3.6V) and have lower quiescent current (10 µA) but maintain equivalent output current and propagation delay performance.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Voltage - Supply | Current - Quiescent (Max) | Current - Output High, Low | Max Propagation Delay @ 3.3V, 50pF | Operating Temperature | Package | Packaging Type |
|---|---|---|---|---|---|---|---|---|---|
| 74LVC14AD,112 | Nexperia USA Inc. | Obsolete | 1.2V ~ 3.6V | 40 µA | 24mA, 24mA | 6.4ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Tube |
| 74LVC14AD,118 | Nexperia USA Inc. | Active | 1.2V ~ 3.6V | 40 µA | 24mA, 24mA | 6.4ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Tape & Reel (TR) |
| SN74LVC14AD | Texas Instruments | Active | 1.65V ~ 3.6V | 1 µA | 24mA, 24mA | 6.2ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Tube |
| SN74LVC14ADR | Texas Instruments | Active | 1.65V ~ 3.6V | 1 µA | 24mA, 24mA | 6.2ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Cut Tape (CT) & Digi-Reel® |
| SN74LVC14ADRG3 | Texas Instruments | Active | 1.65V ~ 3.6V | 1 µA | 24mA, 24mA | 6.2ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Tape & Reel (TR) |
| SN74LVC14ADRG4 | Texas Instruments | Discontinued at DiGi Electronics | 1.65V ~ 3.6V | 1 µA | 24mA, 24mA | 6.2ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Cut Tape (CT) & Digi-Reel® |
| SN74LVC14ADT | Texas Instruments | Active | 1.65V ~ 3.6V | 1 µA | 24mA, 24mA | 6.2ns | -40°C ~ 125°C | 14-SOIC (0.154", 3.90mm) | Tape & Reel (TR) |
| MC74LCX14DG | onsemi | Active | 2V ~ 3.6V | 10 µA | 24mA, 24mA | 6.5ns | -40°C ~ 85°C | 14-SOIC (0.154", 3.90mm) | Tube |
| MC74LCX14DR2G | onsemi | Active | 2V ~ 3.6V | 10 µA | 24mA, 24mA | 6.5ns | -40°C ~ 85°C | 14-SOIC (0.154", 3.90mm) | Tape & Reel (TR) |
Engineering Selection Recommendations
Primary Recommendation - Direct Equivalent: The 74LVC14AD,118 from Nexperia is the direct active production equivalent with identical electrical specifications and supply voltage range. This part maintains full compatibility with the obsolete 74LVC14AD,112 and is available in Tape & Reel packaging for production volumes.
Secondary Recommendation - Enhanced Performance: Texas Instruments SN74LVC14 series parts (SN74LVC14AD, SN74LVC14ADR, SN74LVC14ADRG3, SN74LVC14ADT) offer superior performance characteristics including significantly reduced quiescent current (1 µA vs 40 µA) and faster propagation delay (6.2ns vs 6.4ns). These parts are actively produced and available in multiple packaging formats. The extended supply voltage range (1.65V ~ 3.6V) provides additional design flexibility. These parts are suitable for designs where the original 74LVC14AD,112 was specified.
Alternative Consideration - onsemi 74LCX Series: The MC74LCX14DG and MC74LCX14DR2G from onsemi provide functional equivalence with reduced quiescent current (10 µA). However, the narrower supply voltage range (2V ~ 3.6V) and reduced operating temperature maximum (-40°C ~ 85°C) limit applicability to designs that do not require the full 1.2V minimum supply voltage or extended temperature operation of the original part.
Compliance Status: All recommended substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), meeting manufacturing and environmental requirements equivalent to the original part.
Frequently Asked Questions (FAQ)
Q: Can the 74LVC14AD,118 be used as a direct replacement for the 74LVC14AD,112?
A: Yes. The 74LVC14AD,118 is the active production equivalent from the same manufacturer with identical electrical specifications, supply voltage range, output current capability, and propagation delay. The only difference is packaging format (Tape & Reel vs Tube). Both parts are ROHS3 compliant with MSL rating of 1.
Q: What are the key differences between Nexperia and Texas Instruments 74LVC14 parts?
A: Texas Instruments SN74LVC14 series parts offer lower quiescent current (1 µA vs 40 µA), faster propagation delay (6.2ns vs 6.4ns), and extended supply voltage range (1.65V ~ 3.6V vs 1.2V ~ 3.6V). All parts maintain identical output current capability (24mA) and package form factor. The Texas Instruments parts are actively produced with multiple packaging options available.
Q: Are onsemi MC74LCX14 parts suitable replacements?
A: The MC74LCX14DG and MC74LCX14DR2G provide functional equivalence with compatible logic operation and package form factor. However, the narrower supply voltage range (2V ~ 3.6V minimum vs 1.2V ~ 3.6V) and reduced operating temperature maximum (-40°C ~ 85°C vs -40°C ~ 125°C) restrict their use to applications that do not require the full voltage and temperature specifications of the original part.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in multiple packaging formats: Tube (individual packaging), Tape & Reel (TR) for production volumes, and Cut Tape (CT) & Digi-Reel® for intermediate quantities. Selection depends on production volume requirements and supply chain preferences.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited), meeting environmental and manufacturing standards equivalent to the original 74LVC14AD,112.
Q: What is the impact of reduced quiescent current in Texas Instruments parts?
A: The reduced quiescent current (1 µA vs 40 µA) in Texas Instruments SN74LVC14 series parts results in lower power consumption during idle states. This is beneficial for battery-powered and low-power applications. The functional operation and output characteristics remain identical to the original part.
Q: Can packaging format affect PCB assembly?
A: Packaging format (Tube, Tape & Reel, Cut Tape) affects supply chain logistics and assembly line compatibility but does not affect the electrical performance or PCB footprint of the component. The 14-SOIC package form factor is identical across all substitute parts.
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