74LCX07M Equivalent & Substitute Parts

Part Overview

The 74LCX07M is a non-inverting buffer IC manufactured by onsemi, featuring 6 elements with open drain output in a 14-SOIC package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The 74LCX07M operates across a supply voltage range of 2V to 5.5V with an output current capability of 32mA (low), suitable for logic-level buffering applications requiring open drain configuration.

Key Parameters

Parameter	Value
Logic Type	Buffer, Non-Inverting
Number of Elements	6
Output Type	Open Drain
Current - Output Low	32mA
Voltage - Supply	2V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74LCX07M is determined by the following critical parameters:

Logic Function: Non-inverting buffer with 6 elements, 1 bit per element
Output Configuration: Open drain output
Package Compatibility: 14-SOIC form factor (0.154" width)
Supply Voltage Range: Minimum 2V support required
Output Current Capability: Minimum 24mA low output current
Operating Temperature Range: Minimum -40°C to 85°C support
Surface Mount Compatibility: All substitutes must be surface mount

Substitute parts are grouped into two categories:

Direct Substitutes (onsemi 74LCX series): MC74LCX07DG and MC74LCX07DR2G maintain the same 74LCX base product number and onsemi manufacturer lineage. These parts are active products with identical functional specifications and package dimensions.

Cross-Manufacturer Substitutes (74LVC series): Parts from Nexperia, Diodes Incorporated, and Texas Instruments utilize the 74LVC base product number. These parts provide enhanced specifications including lower minimum supply voltage (1.2V to 1.65V) and extended operating temperature ranges (-40°C to 125°C), while maintaining identical logic function, element count, output type, and package form factor.

Parameter Comparison

Part Number	Manufacturer	Product Status	Logic Type	Elements	Output Type	Current Low (mA)	Supply Voltage	Temp Range (°C)	Package	RoHS Status
74LCX07M	onsemi	Obsolete	Buffer, Non-Inverting	6	Open Drain	32	2V ~ 5.5V	-40 ~ 85	14-SOIC	Not Specified
MC74LCX07DG	onsemi	Active	Buffer, Non-Inverting	6	Open Drain	24	2V ~ 5.5V	-40 ~ 85	14-SOIC	ROHS3 Compliant
MC74LCX07DR2G	onsemi	Active	Buffer, Non-Inverting	6	Open Drain	24	2V ~ 5.5V	-40 ~ 85	14-SOIC	ROHS3 Compliant
74LVC07AD,118	Nexperia USA Inc.	Active	Buffer, Non-Inverting	6	Open Drain	32	1.2V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
74LVC07AD-Q100J	Nexperia USA Inc.	Active	Buffer, Non-Inverting	6	Open Drain	32	1.2V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
74LVC07AS14-13	Diodes Incorporated	Active	Buffer, Non-Inverting	6	Open Drain	32	1.65V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
SN74LVC07AD	Texas Instruments	Active	Buffer, Non-Inverting	6	Open Drain	24	1.65V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
SN74LVC07ADR	Texas Instruments	Active	Buffer, Non-Inverting	6	Open Drain	24	1.65V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
SN74LVC07ADRG3	Texas Instruments	Active	Buffer, Non-Inverting	6	Open Drain	24	1.65V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
SN74LVC07ADT	Texas Instruments	Active	Buffer, Non-Inverting	6	Open Drain	24	1.65V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant
SN74LVC07ANS	Texas Instruments	Active	Buffer, Non-Inverting	6	Open Drain	24	1.65V ~ 5.5V	-40 ~ 125	14-SOIC	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (onsemi Lineage)

MC74LCX07DG and MC74LCX07DR2G are active onsemi products maintaining the 74LCX series designation. Both parts are ROHS3 compliant and provide identical functional specifications to the obsolete 74LCX07M. The primary difference between these two substitutes is packaging format: MC74LCX07DG is supplied in Tube packaging, while MC74LCX07DR2G is supplied in Tape & Reel format. Selection between these two should be based on procurement and assembly requirements rather than electrical performance.

For Cross-Manufacturer Substitution (74LVC Series)

The 74LVC series substitutes from Nexperia, Diodes Incorporated, and Texas Instruments are all active products with ROHS3 compliance. These parts offer enhanced specifications compared to the original 74LCX07M:

Extended minimum supply voltage support (1.2V to 1.65V versus 2V)
Extended operating temperature range (-40°C to 125°C versus -40°C to 85°C)
Maintained output current capability (24mA to 32mA)
Identical package form factor and pin configuration

74LVC07AD-Q100J from Nexperia includes AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.

All substitute parts maintain the critical functional parameters: 6-element non-inverting buffer configuration, open drain output, 14-SOIC package, and surface mount compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use a 74LVC series part as a direct replacement for the obsolete 74LCX07M?

A: Yes. The 74LVC series parts (SN74LVC07AD, 74LVC07AS14-13, 74LVC07AD,118, and variants) are functionally equivalent to the 74LCX07M. All maintain the same logic function (6-element non-inverting buffer), output type (open drain), element count, and 14-SOIC package form factor. The 74LVC series provides enhanced specifications with lower minimum supply voltage and extended operating temperature range, making them suitable replacements for new designs and production transitions.

Q: What is the difference between MC74LCX07DG and MC74LCX07DR2G?

A: Both parts are electrically identical onsemi 74LCX07 variants with the same functional specifications and ROHS3 compliance. The difference is packaging format: MC74LCX07DG is supplied in Tube packaging, while MC74LCX07DR2G is supplied in Tape & Reel format. Selection depends on assembly line requirements and procurement preferences.

Q: Are there output current differences between substitute parts?

A: Yes. The original 74LCX07M specifies 32mA output low current. onsemi 74LCX series substitutes (MC74LCX07DG, MC74LCX07DR2G) provide 24mA output low current. Nexperia and Diodes Incorporated 74LVC series parts maintain 32mA output low current. Texas Instruments 74LVC series parts provide 24mA output low current. All values exceed typical application requirements for logic-level buffering.

Q: What is the minimum supply voltage requirement for each substitute?

A: The original 74LCX07M operates from 2V to 5.5V. onsemi 74LCX series substitutes maintain this 2V to 5.5V range. Nexperia 74LVC07AD,118 and 74LVC07AD-Q100J support 1.2V to 5.5V. Diodes Incorporated 74LVC07AS14-13 supports 1.65V to 5.5V. Texas Instruments 74LVC series parts support 1.65V to 5.5V. All substitutes meet or exceed the original 2V minimum requirement.

Q: Is the 14-SOIC package identical across all substitute parts?

A: All substitute parts use the 14-SOIC package form factor. The package dimensions are 0.154" (3.90mm) width, maintaining identical PCB footprint and pin configuration compatibility with the original 74LCX07M.

Q: Which substitute part should I select for automotive applications?

A: The 74LVC07AD-Q100J from Nexperia includes AEC-Q100 automotive qualification. This part is suitable for automotive-grade applications requiring qualified components. All other substitutes are industrial-grade parts without automotive qualification.

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