CD74HC14M Equivalent & Substitute Parts

Part Overview

The CD74HC14M is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Texas Instruments in 14-SOIC surface mount packaging. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The CD74HC14M operates across a 2V to 6V supply voltage range and is suitable for logic signal conditioning and inversion in digital circuits requiring hysteresis input characteristics.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Features	Schmitt Trigger
Voltage - Supply	2V ~ 6V
Current - Quiescent (Max)	2 µA
Current - Output High, Low	5.2mA, 5.2mA
Input Logic Level - Low	0.3V ~ 1.2V
Input Logic Level - High	1.5V ~ 4.2V
Max Propagation Delay @ 6V, 50pF	23ns
Operating Temperature	-55°C ~ 125°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CD74HC14M is determined by strict equivalence across the following critical parameters:

Functional Equivalence Requirements:

Logic Type: Inverter
Number of Circuits: 6
Number of Inputs: 1
Features: Schmitt Trigger
Voltage - Supply: 2V ~ 6V
Package / Case: 14-SOIC (0.154", 3.90mm Width)
Mounting Type: Surface Mount

Electrical Compatibility Parameters:

Current - Output High, Low: 5.2mA, 5.2mA
Operating Temperature: -55°C ~ 125°C (minimum requirement)
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories based on product status and availability: Active substitutes with current manufacturing status, and Obsolete substitutes with limited availability. All listed substitutes maintain electrical and mechanical compatibility with the CD74HC14M within the specified parameter ranges.

Parameter Comparison

Part Number	Manufacturer	Product Status	Packaging	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Inventory
CD74HC14M	Texas Instruments	Discontinued	Tube	2 µA	23ns	-55°C ~ 125°C	2138 Pcs
CD74HC14M96	Texas Instruments	Active	Cut Tape (CT) & Digi-Reel®	2 µA	23ns	-55°C ~ 125°C	4177 Pcs
MC74HC14ADR2G	onsemi	Active	Cut Tape (CT) & Digi-Reel®	1 µA	13ns	-55°C ~ 125°C	275100 Pcs
MM74HC14M	onsemi	Active	Tube	2 µA	21ns	-55°C ~ 125°C	1311 Pcs
74HC14D,653	Nexperia USA Inc.	Active	Cut Tape (CT) & Digi-Reel®	2 µA	21ns	-40°C ~ 125°C	2200 Pcs
74HC14S14-13	Diodes Incorporated	Active	Tape & Reel (TR)	20 µA	21ns	-40°C ~ 125°C	1225 Pcs
M74HC14YRM13TR	STMicroelectronics	Active	Cut Tape (CT) & Digi-Reel®	1 µA	21ns	-40°C ~ 125°C	1981 Pcs
MC74HC14ADG	onsemi	Active	Tube	1 µA	13ns	-55°C ~ 125°C	3060 Pcs
MM74HC14MX	onsemi	Active	Cut Tape (CT) & Digi-Reel®	2 µA	21ns	-55°C ~ 125°C	7404 Pcs
NLV74HC14ADR2G	onsemi	Obsolete	Tape & Reel (TR)	1 µA	19ns	-55°C ~ 125°C	6855 Pcs

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Temperature Range -55°C ~ 125°C):

CD74HC14M96 is the direct Texas Instruments equivalent with identical electrical specifications and the same tube packaging option as the original part. This is the preferred substitute for applications requiring exact parameter matching and continuity with existing supply chains.

MC74HC14ADR2G and MC74HC14ADG from onsemi provide superior performance characteristics with lower quiescent current (1 µA vs. 2 µA) and faster propagation delay (13ns vs. 23ns). Both parts maintain the full -55°C to 125°C operating temperature range and ROHS3 compliance. MC74HC14ADG is available in tube packaging matching the original CD74HC14M format.

MM74HC14M and MM74HC14MX from onsemi are available in tube and cut tape packaging respectively, with specifications closely aligned to the CD74HC14M. Both maintain 2 µA quiescent current and the full temperature range.

Secondary Substitutes (Active Status, Limited Temperature Range -40°C ~ 125°C):

74HC14D,653 from Nexperia USA Inc. and 74HC14S14-13 from Diodes Incorporated are functionally equivalent but operate only to -40°C minimum. These are suitable for applications not requiring the extended low-temperature performance of the original part. The 74HC14S14-13 exhibits higher quiescent current (20 µA) and should be evaluated for power consumption sensitivity.

Automotive-Grade Option:

M74HC14YRM13TR from STMicroelectronics is AEC-Q100 qualified and suitable for automotive applications. It operates to -40°C minimum with 1 µA quiescent current and 21ns propagation delay.

Obsolete Status:

NLV74HC14ADR2G from onsemi is marked obsolete and should be used only when existing inventory is available and no active alternatives are suitable.

Frequently Asked Questions (FAQ)

Q: Can I substitute CD74HC14M with any 74HC14 variant?

A: No. Substitution requires matching the specific package type (14-SOIC), mounting method (surface mount), and electrical specifications. The CD74HC14M uses 14-SOIC packaging; variants in different packages (such as 14-DIP or 16-SOIC) are not compatible. Additionally, the Schmitt trigger feature must be present in the substitute.

Q: What is the difference between tube and cut tape packaging?

A: Tube packaging contains components in a plastic tube suitable for manual handling and small-quantity assembly. Cut tape and Digi-Reel packaging are supplied on continuous tape with perforations, designed for automated pick-and-place equipment. Both formats contain the same die and electrical specifications; the choice depends on assembly process requirements.

Q: Why do some substitutes have lower quiescent current?

A: Quiescent current variation (1 µA vs. 2 µA) reflects manufacturing process differences between suppliers. Lower quiescent current indicates more efficient design but does not affect functional compatibility. Both values are within acceptable limits for standard logic applications.

Q: Is the propagation delay difference significant?

A: Propagation delay ranges from 13ns to 23ns across available substitutes. For most digital logic applications, this variation is negligible. Applications with strict timing requirements (such as high-frequency signal conditioning) should verify that the selected substitute meets specific propagation delay specifications.

Q: Can I use parts with -40°C minimum operating temperature instead of -55°C?

A: Only if your application does not require operation below -40°C. The CD74HC14M specifies -55°C minimum; substitutes with -40°C minimum are suitable only for applications within the narrower temperature range. Verify your system requirements before selecting a limited-temperature substitute.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting lead, cadmium, mercury, and other hazardous materials. All listed substitutes are ROHS3 compliant, ensuring environmental and regulatory compatibility.

Q: Are automotive-grade parts necessary for non-automotive applications?

A: No. The M74HC14YRM13TR automotive-grade part with AEC-Q100 qualification is optional for non-automotive use. Standard commercial-grade substitutes are suitable unless your application specifically requires automotive qualification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message