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74LCX06MTCX Equivalent & Substitute Parts
Part Overview
The 74LCX06MTCX is a 6-channel inverter logic IC manufactured by onsemi, featuring open drain outputs in a 14-TSSOP surface mount package. This active product operates across a 2V to 3.6V supply voltage range with a maximum propagation delay of 3.7ns at 3.3V with 50pF load. The device is ROHS3 compliant with MSL Level 1 rating, making it suitable for industrial and commercial applications requiring low-power logic inversion with open drain capability. Substitute parts are identified based on functional equivalence, electrical parameter compatibility, and package compatibility within the 74LCX and 74LVC logic families.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Logic Type | Inverter |
| Number of Circuits | 6 |
| Number of Inputs | 1 |
| Features | Open Drain |
| Voltage - Supply | 2V ~ 3.6V |
| Current - Quiescent (Max) | 10 µA |
| Current - Output High, Low | -, 24mA |
| Input Logic Level - Low | 0.7V ~ 0.8V |
| Input Logic Level - High | 1.7V ~ 2V |
| Max Propagation Delay @ V, Max CL | 3.7ns @ 3.3V, 50pF |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the 74LCX06MTCX are classified based on the following substitution criteria:
Parametric Equivalent (Direct Functional Replacement): Parts maintaining identical electrical specifications, logic configuration (6-channel inverter, open drain), and package form factor (14-TSSOP). The MC74LCX06DTR2G from onsemi meets all parametric requirements with no derating or design modifications required.
Direct Manufacturer Equivalent (Cross-Manufacturer Substitution): Parts from alternative manufacturers (Texas Instruments, NXP Semiconductors) that maintain the same logic function, channel count, and open drain output configuration. These parts may exhibit improved electrical performance (lower quiescent current, extended temperature range, faster propagation delay) while remaining pin-compatible and functionally equivalent.
Similar Parts (Package or Specification Variants): Parts within the 74LVC logic family that maintain the 6-channel inverter open drain function but differ in packaging format (14-SSOP, 14-TVSOP, Bulk, Tube) or operating temperature range. These require physical board layout compatibility verification for non-TSSOP packages.
Key Parameters Determining Substitutability:
- Logic Type: Inverter (6-channel, 1-input per channel)
- Output Configuration: Open Drain
- Supply Voltage Compatibility: Minimum 2V operation required
- Output Current Capability: 24mA sink current
- Package Footprint: 14-pin surface mount variants
- Functional Pin Compatibility: Identical pinout within package family
Parameter Comparison
| Part Number | Manufacturer | Series | Voltage - Supply | Current - Quiescent (Max) | Max Propagation Delay @ 3.3V, 50pF | Operating Temperature | Package / Case | Packaging Type |
|---|---|---|---|---|---|---|---|---|
| 74LCX06MTCX | onsemi | 74LCX | 2V ~ 3.6V | 10 µA | 3.7ns | -40°C ~ 85°C | 14-TSSOP (0.173", 4.40mm) | Tape & Reel (TR) |
| MC74LCX06DTR2G | onsemi | 74LCX | 2V ~ 3.6V | 10 µA | 3.7ns | -40°C ~ 85°C | 14-TSSOP (0.173", 4.40mm) | Tape & Reel (TR) |
| SN74LVC06APWR | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 1 µA | 4.6ns | -40°C ~ 125°C | 14-TSSOP (0.173", 4.40mm) | Tape & Reel (TR) |
| SN74LVC06ADBR | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 1 µA | 4.6ns | -40°C ~ 125°C | 14-SSOP (0.209", 5.30mm) | Tape & Reel (TR) |
| SN74LVC06ADGVR | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 1 µA | 4.6ns | -40°C ~ 125°C | 14-TFSOP (0.173", 4.40mm) | Tape & Reel (TR) |
| SN74LVC06APW | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 1 µA | 4.6ns | -40°C ~ 125°C | 14-TSSOP (0.173", 4.40mm) | Tube |
| SN74LVC06APWT | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 1 µA | 4.6ns | -40°C ~ 125°C | 14-TSSOP (0.173", 4.40mm) | Tape & Reel (TR) |
| SN74LVC06AQPWRG4Q1 | Texas Instruments | 74LVC | 1.65V ~ 3.6V | 10 µA | 3.7ns | -40°C ~ 125°C | 14-TSSOP (0.173", 4.40mm) | Tape & Reel (TR) |
| 74LVC06APW,112 | NXP Semiconductors | 74LVC | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Bulk |
| 74LVC06APW,118 | NXP Semiconductors | 74LVC | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified | Not Specified |
Engineering Selection Recommendations
Primary Substitute (Parametric Equivalent): MC74LCX06DTR2G is the direct parametric equivalent from onsemi, maintaining identical electrical specifications and package configuration. Selection is appropriate for applications requiring no design modification and equivalent performance characteristics.
Cross-Manufacturer Substitutes (Enhanced Performance): Texas Instruments SN74LVC06 variants (SN74LVC06APWR, SN74LVC06APWT, SN74LVC06ADBR, SN74LVC06ADGVR) offer improved electrical performance with lower quiescent current (1 µA vs. 10 µA), faster propagation delay (4.6ns vs. 3.7ns), and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). These parts are functionally compatible and suitable for applications requiring enhanced performance margins or wider temperature operation. All Texas Instruments variants maintain ROHS3 compliance and MSL Level 1 rating.
Automotive-Grade Option: SN74LVC06AQPWRG4Q1 from Texas Instruments provides AEC-Q100 automotive qualification with extended temperature range (-40°C to 125°C) and quiescent current matching the original specification (10 µA). This variant is appropriate for automotive and harsh environment applications requiring automotive-grade certification.
Package Variant Considerations: SN74LVC06ADBR uses 14-SSOP package (5.30mm width) versus the standard 14-TSSOP (4.40mm width), requiring PCB layout verification. SN74LVC06ADGVR uses 14-TFSOP package, also requiring footprint compatibility confirmation.
NXP Semiconductors Variants: 74LVC06APW,112 and 74LVC06APW,118 from NXP Semiconductors maintain functional equivalence within the 74LVC family but lack complete parametric documentation in the provided data. These parts are suitable for applications where full parametric specification is available through alternative documentation sources.
Frequently Asked Questions (FAQ)
Q: Can the MC74LCX06DTR2G directly replace the 74LCX06MTCX without design changes? A: Yes. The MC74LCX06DTR2G is a parametric equivalent with identical electrical specifications, pin configuration, and package footprint. No design modifications are required.
Q: What are the advantages of using Texas Instruments SN74LVC06 variants over the original 74LCX06MTCX? A: Texas Instruments SN74LVC06 variants offer lower quiescent current (1 µA vs. 10 µA), faster propagation delay (4.6ns vs. 3.7ns), and extended operating temperature range (-40°C to 125°C vs. -40°C to 85°C). These improvements provide better performance margins and wider application flexibility while maintaining functional compatibility.
Q: Are all substitute parts pin-compatible with the 74LCX06MTCX? A: All listed substitutes maintain identical pinout within their respective package families. However, package variants (14-SSOP, 14-TFSOP) differ in physical dimensions from the standard 14-TSSOP. Verify PCB footprint compatibility for non-TSSOP packages before implementation.
Q: What is the minimum supply voltage for substitute parts? A: The original 74LCX06MTCX operates from 2V to 3.6V. Texas Instruments SN74LVC06 variants operate from 1.65V to 3.6V, providing lower voltage operation capability. NXP and onsemi variants maintain the 2V minimum specification.
Q: Is the SN74LVC06AQPWRG4Q1 suitable for automotive applications? A: Yes. The SN74LVC06AQPWRG4Q1 carries AEC-Q100 automotive qualification and is specifically designed for automotive-grade applications requiring extended temperature operation (-40°C to 125°C).
Q: What is the difference between Tape & Reel (TR) and Tube packaging? A: Tape & Reel packaging is optimized for automated assembly processes with continuous component feeding. Tube packaging is suitable for manual assembly or lower-volume applications. Both packaging types contain identical components; selection depends on assembly process requirements.
Q: Are all substitute parts ROHS3 compliant? A: All listed substitutes with complete specifications are ROHS3 compliant. NXP variants (74LVC06APW,112 and 74LVC06APW,118) have incomplete parametric data in the provided documentation; verify ROHS compliance through manufacturer datasheets.
Q: Can I use the 74LVC06APW,112 or 74LVC06APW,118 from NXP as direct replacements? A: These parts maintain functional equivalence within the 74LVC inverter family but lack complete electrical specification data in the provided documentation. Obtain full parametric datasheets from NXP Semiconductors to confirm compatibility with your specific application requirements before implementation.
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