74LCX07MTC Equivalent & Substitute Parts

Part Overview

The 74LCX07MTC is a non-inverting buffer IC manufactured by onsemi, featuring 6 elements with open drain output configuration in a 14-TSSOP package. This device operates across a 2V to 5.5V supply voltage range and is rated for -40°C to 85°C operating temperature. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. Substitute parts must maintain functional equivalence in logic type, element count, output configuration, and package form factor while meeting current availability and compliance standards.

Key Parameters

Parameter	74LCX07MTC
Manufacturer	onsemi
Logic Type	Buffer, Non-Inverting
Number of Elements	6
Number of Bits per Element	1
Output Type	Open Drain
Current - Output Low	32mA
Voltage - Supply	2V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74LCX07MTC is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Logic Type: Buffer, Non-Inverting (6 elements, 1 bit per element)
Output Configuration: Open Drain
Package Form Factor: 14-TSSOP (0.173", 4.40mm Width)
Supply Voltage Range: Must encompass or exceed 2V ~ 5.5V
Operating Temperature: Must support -40°C minimum and 85°C maximum
Output Current Capability: Minimum 24mA at output low

Substitution Groups:

Group 1: onsemi 74LCX Series (Same Base Product)

MC74LCX07DTG (Obsolete, Tube packaging)
MC74LCX07DTR2G (Active, Cut Tape & Digi-Reel)

These parts share identical functional specifications with the main part, differing only in packaging format and product status.

Group 2: STMicroelectronics 74LCX Series

74LCX07YTTR (Active, Automotive Grade, AEC-Q100 qualified)

This part operates at 2V ~ 3.6V supply voltage, which is a subset of the main part's range. Automotive qualification adds reliability assurance for specific applications.

Group 3: Nexperia 74LVC Series

74LVC07APW,118 (Active, Cut Tape & Digi-Reel)

This part extends supply voltage range to 1.2V ~ 5.5V and operating temperature to -40°C ~ 125°C, providing broader operational envelope.

Group 4: Texas Instruments 74LVC Series (Primary Substitutes)

SN74LVC07ADBR (14-SSOP package variant)
SN74LVC07ADGVR (14-TVSOP package variant)
SN74LVC07AIPWREP (14-TSSOP, -40°C ~ 85°C)
SN74LVC07AMPWREP (14-TSSOP, -55°C ~ 125°C)
SN74LVC07APW (14-TSSOP, Tube packaging)
SN74LVC07APWR (14-TSSOP, Cut Tape & Digi-Reel, highest inventory)

Texas Instruments 74LVC07 variants provide the broadest availability and extended specifications. Most variants support 1.65V ~ 5.5V supply voltage and -40°C ~ 125°C operating temperature.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Output Type	Package	Supply Voltage	Operating Temp	Output Current (Low)	Product Status	Inventory
74LCX07MTC	onsemi	Buffer, Non-Inverting	Open Drain	14-TSSOP	2V ~ 5.5V	-40°C ~ 85°C	32mA	Obsolete	1810 Pcs
MC74LCX07DTG	onsemi	Buffer, Non-Inverting	Open Drain	14-TSSOP	2V ~ 5.5V	-40°C ~ 85°C	24mA	Obsolete	2268 Pcs
MC74LCX07DTR2G	onsemi	Buffer, Non-Inverting	Open Drain	14-TSSOP	2V ~ 5.5V	-40°C ~ 85°C	24mA	Active	10000 Pcs
74LCX07YTTR	STMicroelectronics	Buffer, Non-Inverting	Open Drain	14-TSSOP	2V ~ 3.6V	-40°C ~ 85°C	24mA	Active	749 Pcs
74LVC07APW,118	Nexperia USA Inc.	Buffer, Non-Inverting	Open Drain	14-TSSOP	1.2V ~ 5.5V	-40°C ~ 125°C	32mA	Active	11824 Pcs
SN74LVC07ADBR	Texas Instruments	Buffer, Non-Inverting	Open Drain	14-SSOP	1.65V ~ 5.5V	-40°C ~ 125°C	24mA	Active	2000 Pcs
SN74LVC07ADGVR	Texas Instruments	Buffer, Non-Inverting	Open Drain	14-TVSOP	1.65V ~ 5.5V	-40°C ~ 125°C	24mA	Active	4110 Pcs
SN74LVC07AIPWREP	Texas Instruments	Buffer, Non-Inverting	Open Drain	14-TSSOP	1.65V ~ 5.5V	-40°C ~ 85°C	24mA	Active	901 Pcs
SN74LVC07AMPWREP	Texas Instruments	Buffer, Non-Inverting	Open Drain	14-TSSOP	1.65V ~ 5.5V	-55°C ~ 125°C	24mA	Active	55288 Pcs
SN74LVC07APW	Texas Instruments	Buffer, Non-Inverting	Open Drain	14-TSSOP	1.65V ~ 5.5V	-40°C ~ 125°C	24mA	Active	4178 Pcs
SN74LVC07APWR	Texas Instruments	Buffer, Non-Inverting	Open Drain	14-TSSOP	1.65V ~ 5.5V	-40°C ~ 125°C	24mA	Active	863500 Pcs

Engineering Selection Recommendations

For Direct Form Factor Replacement (14-TSSOP Package):

SN74LVC07APWR is the primary recommendation. This Texas Instruments part maintains the exact 14-TSSOP package footprint, supports the full 1.65V ~ 5.5V supply voltage range encompassing the original 2V ~ 5.5V specification, and operates across -40°C ~ 125°C, exceeding the original -40°C ~ 85°C requirement. Product status is active with the highest inventory availability (863,500 pcs), ensuring long-term supply continuity. ROHS3 compliance and MSL 1 rating match the original part specifications.

For Extended Temperature Range Applications:

SN74LVC07AMPWREP extends the lower operating temperature to -55°C while maintaining the upper limit at 125°C. This variant is suitable for applications requiring enhanced cold-temperature performance. Inventory availability is substantial (55,288 pcs).

For Matching Original Temperature Range:

SN74LVC07AIPWREP maintains the original -40°C ~ 85°C operating temperature specification while providing active product status and improved supply voltage range (1.65V ~ 5.5V). This option is appropriate when thermal specifications must remain unchanged.

For Alternative Package Geometries:

SN74LVC07ADBR (14-SSOP, 0.209" width) and SN74LVC07ADGVR (14-TVSOP) provide functional equivalence with different package footprints. These options are suitable only if PCB layout accommodates the alternative package dimensions.

For Automotive Applications:

74LCX07YTTR from STMicroelectronics carries AEC-Q100 automotive qualification. This part is restricted to 2V ~ 3.6V supply voltage range and should be selected only when automotive-grade certification is required and supply voltage remains within the specified limits.

For Nexperia Supply Chain:

74LVC07APW,118 provides equivalent functionality with extended supply voltage range (1.2V ~ 5.5V) and operating temperature (-40°C ~ 125°C). This option is suitable when Nexperia component sourcing is preferred.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC07APWR directly replace 74LCX07MTC without PCB modifications?

A: Yes. Both parts use the 14-TSSOP package with identical 0.173" (4.40mm) width and pin configuration. No PCB layout changes are required. The SN74LVC07APWR supports the full voltage range of the original part and exceeds its temperature specifications.

Q: What is the difference between 74LCX and 74LVC series?

A: The 74LVC series extends the supply voltage range to 1.2V minimum (versus 2V for 74LCX) and typically supports higher operating temperatures (-40°C ~ 125°C versus -40°C ~ 85°C). Both series maintain identical logic functionality and package compatibility. The 74LVC series represents an enhanced specification with broader operational envelope.

Q: Why do some substitutes show lower output current (24mA vs 32mA)?

A: Output current specifications vary by manufacturer and product line. The 24mA output current of most 74LVC variants remains sufficient for standard logic applications. If the design requires the full 32mA output capability, verify the specific application requirements before substitution. The Nexperia 74LVC07APW,118 maintains 32mA output current matching the original part.

Q: Is the STMicroelectronics 74LCX07YTTR suitable for all applications?

A: The 74LCX07YTTR is restricted to 2V ~ 3.6V supply voltage range, which is narrower than the original 2V ~ 5.5V specification. This part is suitable only for applications operating within the 2V ~ 3.6V range. It is the only option carrying automotive AEC-Q100 qualification and should be selected when automotive certification is mandatory.

Q: What packaging options are available?

A: The primary substitute options use 14-TSSOP packaging (0.173" width), matching the original part. Alternative packages include 14-SSOP (0.209" width, SN74LVC07ADBR) and 14-TVSOP (SN74LVC07ADGVR). Package selection depends on PCB layout constraints and available board space.

Q: Which substitute has the best inventory availability?

A: SN74LVC07APWR from Texas Instruments has the highest inventory (863,500 pcs), ensuring immediate availability and long-term supply security. This part is recommended for new designs requiring maximum supply chain reliability.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the original 74LCX07MTC specification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level.

Q: Can I use SN74LVC07AMPWREP in place of SN74LVC07APWR?

A: Yes. The SN74LVC07AMPWREP is functionally equivalent with extended lower temperature rating (-55°C versus -40°C). Both use identical 14-TSSOP packaging and support the same supply voltage range. Selection depends on whether the application requires the extended cold-temperature performance.

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