CD74HC14PW Equivalent & Substitute Parts

Part Overview

The CD74HC14PW is a 6-channel inverter IC with Schmitt trigger inputs in a 14-TSSOP surface mount package, manufactured by Texas Instruments. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The 74HC14 logic family provides reliable signal inversion with hysteresis characteristics across industrial and commercial temperature ranges.

Key Parameters

Parameter	Value
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Features	Schmitt Trigger
Voltage Supply Range	2V to 6V
Output Current (High/Low)	5.2mA / 5.2mA
Package Type	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Operating Temperature	-55°C to 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the CD74HC14PW is determined by strict equivalence across the following criteria:

Logic Function: All substitutes must be 6-channel inverters with Schmitt trigger inputs
Package: All substitutes must use 14-TSSOP surface mount packaging with identical physical dimensions
Electrical Specifications: Supply voltage range (2V–6V), output current (5.2mA), and input logic levels must remain within specified tolerances
Compliance: RoHS3 compliance and MSL Level 1 rating are maintained across all substitutes
Base Product Number: All parts belong to the 74HC14 logic family

Substitutes are grouped by manufacturer and packaging format (Cut Tape, Tape & Reel, or Tube). Product status (Active vs. Discontinued/Obsolete) is noted for procurement planning.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Product Status	Packaging	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Inventory
CD74HC14PW	Texas Instruments	Discontinued	14-TSSOP	2 µA	23ns	-55°C to 125°C	889 Pcs
CD74HC14PWR	Texas Instruments	Active	Cut Tape & Digi-Reel	2 µA	23ns	-55°C to 125°C	4095 Pcs
MC74HC14ADTR2G	onsemi	Active	Tape & Reel	1 µA	13ns	-55°C to 125°C	6990 Pcs
74HC14PW,118	Nexperia USA Inc.	Active	Cut Tape & Digi-Reel	2 µA	21ns	-40°C to 125°C	1000200 Pcs
74HC14T14-13	Diodes Incorporated	Active	Tape & Reel	20 µA	21ns	-40°C to 125°C	3592 Pcs
M74HC14YTTR	STMicroelectronics	Active	Tape & Reel	1 µA	21ns	-40°C to 125°C	1780 Pcs
MC74HC14ADTG	onsemi	Active	Tube	1 µA	13ns	-55°C to 125°C	2971 Pcs
MM74HC14MTC	onsemi	Active	Tube	2 µA	21ns	-55°C to 125°C	2400 Pcs
MM74HC14MTCX	onsemi	Active	Cut Tape & Digi-Reel	2 µA	21ns	-55°C to 125°C	5300 Pcs
NLV74HC14ADTR2G	onsemi	Obsolete	Cut Tape & Digi-Reel	1 µA	19ns	-55°C to 125°C	80400 Pcs

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Temperature Range)

CD74HC14PWR (Texas Instruments) and MM74HC14MTCX (onsemi) are direct functional equivalents with identical electrical performance to the original CD74HC14PW. Both maintain the -55°C to 125°C operating range and are actively manufactured. Selection between these depends on packaging preference: Cut Tape & Digi-Reel for automated assembly or Tube for manual handling.

MC74HC14ADTR2G and MC74HC14ADTG (onsemi) offer improved propagation delay performance (13ns vs. 23ns) and lower quiescent current (1 µA), with full -55°C to 125°C temperature coverage. These are suitable for applications where faster switching or reduced power consumption provides system benefit.

Secondary Substitutes (Active Status, Limited Temperature Range)

74HC14PW,118 (Nexperia USA Inc.), 74HC14T14-13 (Diodes Incorporated), and M74HC14YTTR (STMicroelectronics) are functionally equivalent but operate only to -40°C minimum. These are appropriate for commercial and industrial applications not requiring extended low-temperature performance. M74HC14YTTR includes AEC-Q100 automotive qualification for applications requiring automotive-grade components.

Avoid

NLV74HC14ADTR2G is marked Obsolete and should not be selected for new designs despite high inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I substitute CD74HC14PW with any 74HC14 variant?

A: No. Substitutes must maintain identical package type (14-TSSOP), supply voltage range (2V–6V), output current (5.2mA), and Schmitt trigger functionality. Variants with different package types (DIP, SOIC) or logic families (74HCT, 74AC) are not compatible.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?

A: Both are tape-and-reel formats suitable for automated pick-and-place assembly. Cut Tape & Digi-Reel is pre-cut into smaller quantities for mixed-volume production. Tape & Reel is supplied on continuous tape for high-volume runs. Tube packaging is for manual handling and lower-volume applications.

Q: Does lower quiescent current mean better performance?

A: Lower quiescent current (1 µA vs. 2 µA) reduces standby power consumption, which is beneficial in battery-powered or low-power applications. However, this does not affect logic function or switching performance in normal operation.

Q: Why do some substitutes have different operating temperature ranges?

A: Manufacturers design variants for different market segments. Parts rated -40°C to 125°C are suitable for commercial and industrial use. Parts rated -55°C to 125°C are suitable for military and extended-temperature applications. Select based on your system's actual operating environment.

Q: Is the M74HC14YTTR suitable for automotive applications?

A: Yes. M74HC14YTTR carries AEC-Q100 automotive qualification and is appropriate for automotive-grade designs. Other substitutes are not qualified for automotive use unless explicitly stated.

Q: What does RoHS3 compliance mean?

A: RoHS3 (Restriction of Hazardous Substances Directive 3) compliance confirms the part contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, or polybrominated diphenyl ethers. All listed substitutes maintain this compliance.

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