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74LVC14ADB,118 Equivalent & Substitute Parts
Part Overview
The 74LVC14ADB,118 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Nexperia USA Inc. in a 14-SSOP package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The 74LVC14 series provides logic inversion with hysteresis characteristics suitable for signal conditioning applications across industrial and commercial voltage ranges.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| 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 @ 3.3V, 50pF | 6.4ns |
| Operating Temperature | -40°C ~ 125°C |
| Package / Case | 14-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the 74LVC14ADB,118 is determined by the following critical parameters:
Functional Requirements:
- Logic Type: Inverter
- Number of Circuits: 6
- Number of Inputs: 1
- Features: Schmitt Trigger
Electrical Compatibility:
- Supply Voltage Range: 1.2V ~ 3.6V (minimum overlap required)
- Output Current: 24mA minimum for both high and low states
- Propagation Delay: 6.4ns maximum @ 3.3V, 50pF
Physical & Environmental:
- Mounting Type: Surface Mount
- Operating Temperature: -40°C ~ 125°C minimum
- RoHS3 Compliance required
- MSL Level: 1 (Unlimited)
Package Compatibility: Substitutes may use different package variants (14-SSOP, 14-TSSOP, 14-TVSOP) provided pin count and functionality remain identical. Package width variations are acceptable within standard SMD assembly tolerances.
Parameter Comparison
| Part Number | Manufacturer | Package | Supply Voltage | Quiescent Current (Max) | Propagation Delay @ 3.3V | Operating Temp | Product Status |
|---|---|---|---|---|---|---|---|
| 74LVC14ADB,118 | Nexperia USA Inc. | 14-SSOP | 1.2V ~ 3.6V | 40 µA | 6.4ns | -40°C ~ 125°C | Obsolete |
| 74LVC14APW,118 | NXP Semiconductors | 14-TSSOP | 1.2V ~ 3.6V | 40 µA | 8ns | -40°C ~ 125°C | Active |
| 74LCX14MTCX | onsemi | 14-TSSOP | 2V ~ 3.6V | 10 µA | 6.5ns | -40°C ~ 85°C | Active |
| SN74LVC14ADBR | Texas Instruments | 14-SSOP | 1.65V ~ 3.6V | 1 µA | 6.2ns | -40°C ~ 125°C | Active |
| SN74LVC14ADGVR | Texas Instruments | 14-TVSOP | 1.65V ~ 3.6V | 1 µA | 6.2ns | -40°C ~ 125°C | Active |
| SN74LVC14APW | Texas Instruments | 14-TSSOP | 1.65V ~ 3.6V | 1 µA | 6.2ns | -40°C ~ 125°C | Active |
| SN74LVC14APWRE4 | Texas Instruments | 14-TSSOP | 1.65V ~ 3.6V | 1 µA | 6.2ns | -40°C ~ 125°C | Discontinued at DiGi Electronics |
| SN74LVC14APWT | Texas Instruments | 14-TSSOP | 1.65V ~ 3.6V | 1 µA | 6.2ns | -40°C ~ 125°C | Active |
| SN74LVC14AQPWREP | Texas Instruments | 14-TSSOP | 2V ~ 3.6V | 10 µA | 6.4ns | -40°C ~ 125°C | Active |
| SN74LVC14AQPWRG4Q1 | Texas Instruments | 14-TSSOP | 2V ~ 3.6V | 10 µA | 6.4ns | -40°C ~ 125°C | Active (Automotive, AEC-Q100) |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
SN74LVC14ADBR and SN74LVC14APW from Texas Instruments are the preferred substitutes. Both maintain the full supply voltage range (1.65V ~ 3.6V), meet or exceed propagation delay specifications, and carry Active product status. SN74LVC14ADBR preserves the 14-SSOP package footprint, eliminating PCB redesign requirements. SN74LVC14APW uses the 14-TSSOP package, which is physically smaller and widely supported in modern assembly processes.
Secondary Substitutes (Functional Equivalence with Trade-offs):
74LVC14APW,118 from NXP Semiconductors is functionally equivalent with identical supply voltage range and operating temperature. The 8ns propagation delay is slightly higher than the original specification but remains within acceptable margins for most applications.
SN74LVC14APWT and SN74LVC14AQPWREP maintain Active status and meet timing requirements. SN74LVC14AQPWRG4Q1 includes automotive-grade qualification (AEC-Q100) for applications requiring automotive reliability standards.
Alternative with Reduced Operating Temperature:
74LCX14MTCX from onsemi operates to -40°C ~ 85°C, which is 40°C lower than the original maximum. This part is suitable only for applications where the upper temperature limit does not exceed 85°C. It offers superior quiescent current performance (10 µA) and is available in Active status.
Avoid:
SN74LVC14APWRE4 is discontinued at DiGi Electronics and should not be selected for new designs despite remaining in inventory.
Frequently Asked Questions (FAQ)
Q: Can I use SN74LVC14APW as a direct replacement for 74LVC14ADB,118?
A: Yes. Both parts share identical logic functionality (6-channel inverter with Schmitt trigger), output current ratings (24mA), and operating temperature range (-40°C ~ 125°C). The primary difference is package type: 14-SSOP versus 14-TSSOP. PCB layout modification is required if the original design uses 14-SSOP footprint.
Q: What is the difference between 14-SSOP and 14-TSSOP packages?
A: Both are 14-pin surface mount packages with identical pin counts and functionality. 14-SSOP (Shrink Small Outline Package) has a 5.30mm width, while 14-TSSOP (Thin Shrink Small Outline Package) has a 4.40mm width. The TSSOP variant is physically smaller and is the industry standard for modern designs. Footprints are not interchangeable without PCB redesign.
Q: Is the 74LCX14MTCX compatible with my application?
A: The 74LCX14MTCX is functionally compatible if your application operates within -40°C ~ 85°C. It is not suitable if sustained operation above 85°C is required. Verify your maximum operating temperature specification before selection.
Q: Why do some substitutes have lower quiescent current (1 µA vs 40 µA)?
A: Lower quiescent current indicates improved power efficiency in the Texas Instruments variants. This is a beneficial characteristic that does not affect functional compatibility. Applications with strict power budgets benefit from these lower-current alternatives.
Q: Can I use SN74LVC14AQPWRG4Q1 in non-automotive applications?
A: Yes. The automotive qualification (AEC-Q100) indicates enhanced reliability testing and is a superset of standard commercial requirements. This part is fully compatible with non-automotive applications and offers superior reliability margins.
Q: What does RoHS3 compliance mean?
A: RoHS3 (Restriction of Hazardous Substances Directive 3) compliance certifies that the component contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers above specified thresholds. All listed substitutes maintain RoHS3 compliance.
Q: Is MSL Level 1 important for my design?
A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life and no moisture baking requirement before soldering. All listed substitutes carry MSL Level 1, eliminating moisture management concerns during storage and assembly.
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