74VHC14M Equivalent & Substitute Parts

Part Overview

The 74VHC14M is a 6-channel inverter IC with Schmitt trigger inputs manufactured by onsemi in 14-SOIC surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74VHC14M operates across a 2V to 5.5V supply voltage range with Schmitt trigger hysteresis for noise immunity in digital logic applications. Substitute parts maintain functional equivalence through matching logic type, circuit count, input configuration, and electrical performance within specified tolerances.

Key Parameters

Parameter	Specification
Logic Type	Inverter with Schmitt Trigger
Number of Circuits	6
Number of Inputs	1
Voltage Supply Range	2V to 5.5V
Quiescent Current (Max)	2 µA
Output Current (High/Low)	8mA / 8mA
Input Logic Level Low	0.9V to 1.65V
Input Logic Level High	2.2V to 3.85V
Max Propagation Delay	10.6ns @ 5V, 50pF
Operating Temperature	-40°C to 85°C
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 74VHC14M is determined by the following critical parameters: logic type (inverter with Schmitt trigger), circuit count (6 channels), input configuration (1 input per channel), supply voltage range (2V to 5.5V minimum), output current capability (8mA minimum), and package compatibility (14-SOIC form factor). All substitute parts listed maintain these core electrical and mechanical specifications. Differences in product status, operating temperature range, quiescent current performance, and packaging format (tube, tape & reel, cut tape) do not affect functional substitution but may influence procurement and application suitability.

Parameter Comparison

Part Number	Manufacturer	Product Status	Logic Type	Circuits	Supply Voltage	Quiescent Current (Max)	Output Current	Propagation Delay	Temp Range	Package
74VHC14M	onsemi	Obsolete	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 85°C	14-SOIC
MC74VHC14DG	onsemi	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-55°C to 125°C	14-SOIC
74VHC14YMTR	STMicroelectronics	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
SN74AHC14D	Texas Instruments	Discontinued	Inverter Schmitt	6	2V–5.5V	1 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
SN74AHC14DR	Texas Instruments	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
SN74AHC14DRG3	Texas Instruments	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
74AHC14D,118	Nexperia USA Inc.	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
74AHC14D-Q100,118	Nexperia USA Inc.	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
74VHC14D,118	Nexperia USA Inc.	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-40°C to 125°C	14-SOIC
SN74AHC14MDREP	Texas Instruments	Active	Inverter Schmitt	6	2V–5.5V	2 µA	8mA/8mA	10.6ns	-55°C to 125°C	14-SOIC

Engineering Selection Recommendations

For applications requiring direct replacement of the obsolete 74VHC14M, prioritize active product status parts to ensure long-term availability and manufacturing support. MC74VHC14DG from onsemi provides the closest functional match with extended operating temperature range (-55°C to 125°C) and active product status. For automotive applications requiring AEC-Q100 qualification, select 74AHC14D-Q100,118 from Nexperia USA Inc. or 74VHC14YMTR from STMicroelectronics. Texas Instruments SN74AHC14DR and SN74AHC14DRG3 offer active status with standard temperature range (-40°C to 125°C) and are available in high volume. All listed substitutes maintain ROHS3 compliance and identical electrical performance within specified parameters. Packaging format selection (tube, tape & reel, cut tape) should align with assembly process requirements and procurement volume.

Frequently Asked Questions (FAQ)

Q: Can MC74VHC14DG directly replace 74VHC14M in existing designs? A: Yes. MC74VHC14DG maintains identical logic type, circuit count, supply voltage range, output current, and propagation delay specifications. The extended operating temperature range (-55°C to 125°C versus -40°C to 85°C) provides additional margin. Packaging is 14-SOIC, matching the original part.

Q: What is the difference between 74VHC and 74AHC series parts? A: Both series meet the same functional and electrical specifications for this inverter Schmitt trigger application. The 74AHC series (Texas Instruments, Nexperia) and 74VHC series (onsemi, STMicroelectronics, Nexperia) are cross-compatible based on the parameters provided. Selection may depend on supplier availability and procurement preferences.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All parts listed in this reference maintain ROHS3 compliance and REACH unaffected status, meeting environmental regulatory requirements.

Q: Does quiescent current difference between 1 µA and 2 µA affect substitution? A: No. Both specifications fall within acceptable operating parameters for this logic family. The 1 µA specification (SN74AHC14D) represents improved performance and does not prevent substitution.

Q: What packaging options are available for substitute parts? A: Substitute parts are available in tube, tape & reel (TR), and cut tape (CT) & Digi-Reel formats. All maintain the 14-SOIC (0.154", 3.90mm width) form factor. Selection should match assembly process requirements and volume needs.

Q: Is automotive qualification required for all applications? A: No. Automotive qualification (AEC-Q100) is required only for automotive-grade applications. Standard industrial and commercial applications can use non-qualified parts. 74AHC14D-Q100,118 and 74VHC14YMTR provide AEC-Q100 qualification for automotive use.

Q: Can I use MC74VHC04DR2G as a substitute? A: No. MC74VHC04DR2G is a standard inverter without Schmitt trigger functionality. The 74VHC14M requires Schmitt trigger hysteresis for proper operation. Only parts explicitly listed as "Inverter Schmitt" are acceptable substitutes.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message