74HC14S14-13 Equivalent & Substitute Parts

Part Overview

The 74HC14S14-13 is a 6-channel inverter logic IC manufactured by Diodes Incorporated in 14-SOIC surface mount packaging. This part operates across a 2V to 6V supply voltage range and is designed for general-purpose digital logic inversion applications. The device is currently active in production with RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the 74HC14S14-13 becomes unavailable due to supply constraints, when alternative packaging formats are required, or when enhanced performance characteristics such as Schmitt trigger functionality or improved propagation delay are needed for specific circuit requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	74HC14S14-13
Manufacturer	Diodes Incorporated
Logic Type	Inverter
Number of Circuits	6
Number of Inputs	1
Voltage Supply Range	2V ~ 6V
Current - Quiescent (Max)	20 µA
Current - Output High/Low	5.2mA / 5.2mA
Max Propagation Delay @ 6V, 50pF	21ns
Operating Temperature Range	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC14S14-13 is determined by the following critical parameters:

Mandatory Compatibility Parameters:

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

Performance Parameters (Allowable Variance):

Current - Quiescent (Max): Up to 20 µA
Current - Output High/Low: 5.2mA / 5.2mA
Max Propagation Delay @ 6V, 50pF: Up to 21ns
Operating Temperature Range: Minimum -40°C ~ 125°C

Substitute parts identified in this reference include both standard inverter variants and enhanced Schmitt trigger versions. Schmitt trigger variants provide superior noise immunity and are functionally compatible as direct replacements. All substitute parts maintain the same pinout, package footprint, and electrical interface specifications.

Parameter Comparison

Part Number	Manufacturer	Logic Type	Features	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temp Range	Product Status	Packaging
74HC14S14-13	Diodes Incorporated	Inverter	—	20 µA	21ns	-40°C ~ 125°C	Active	Tape & Reel (TR)
MC74HC14ADR2G	onsemi	Inverter	Schmitt Trigger	1 µA	13ns	-55°C ~ 125°C	Active	Cut Tape (CT) & Digi-Reel®
MM74HC14MX	onsemi	Inverter	Schmitt Trigger	2 µA	21ns	-55°C ~ 125°C	Active	Cut Tape (CT) & Digi-Reel®
SN74HC14DR	Texas Instruments	Inverter	Schmitt Trigger	2 µA	21ns	-40°C ~ 85°C	Active	Cut Tape (CT) & Digi-Reel®
CD74HC14M96	Texas Instruments	Inverter	Schmitt Trigger	2 µA	23ns	-55°C ~ 125°C	Active	Cut Tape (CT) & Digi-Reel®
M74HC14YRM13TR	STMicroelectronics	Inverter	Schmitt Trigger	1 µA	21ns	-40°C ~ 125°C	Active	Cut Tape (CT) & Digi-Reel®
SN74HC14D	Texas Instruments	Inverter	Schmitt Trigger	2 µA	21ns	-40°C ~ 85°C	Discontinued at DiGi Electronics	Tube
SN74HC14DE4	Texas Instruments	Inverter	Schmitt Trigger	2 µA	21ns	-40°C ~ 85°C	Discontinued at DiGi Electronics	Tube
CD74HC14M	Texas Instruments	Inverter	Schmitt Trigger	2 µA	23ns	-55°C ~ 125°C	Discontinued at DiGi Electronics	Tube
CD74HC14MT	Texas Instruments	Inverter	Schmitt Trigger	2 µA	23ns	-55°C ~ 125°C	Obsolete	Tape & Reel (TR)
NLV74HC14ADR2G	onsemi	Inverter	Schmitt Trigger	1 µA	19ns	-55°C ~ 125°C	Obsolete	Tape & Reel (TR)

Engineering Selection Recommendations

Primary Substitutes (Active Status, Recommended for New Designs):

MC74HC14ADR2G and M74HC14YRM13TR are the preferred substitutes for the 74HC14S14-13. Both parts maintain full electrical compatibility, offer Schmitt trigger functionality for improved noise immunity, and are currently in active production. MC74HC14ADR2G provides superior propagation delay performance (13ns) and lower quiescent current (1 µA). M74HC14YRM13TR includes AEC-Q100 automotive qualification and matches the original operating temperature range (-40°C ~ 125°C).

MM74HC14MX and SN74HC14DR are functionally equivalent alternatives with identical propagation delay (21ns) to the 74HC14S14-13. Both are actively produced and available in standard packaging formats. SN74HC14DR is limited to -40°C ~ 85°C operating range.

CD74HC14M96 is an active production part with extended temperature range (-55°C ~ 125°C) and manufacturer recommended status. Propagation delay is 23ns, within acceptable tolerance for most applications.

Secondary Substitutes (Discontinued or Obsolete Status):

SN74HC14D, SN74HC14DE4, CD74HC14M, CD74HC14MT, and NLV74HC14ADR2G are no longer in active production. These parts remain functionally compatible but should only be selected when existing inventory is available and supply continuity is not a concern. NLV74HC14ADR2G includes AEC-Q100 automotive qualification despite obsolete status.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). M74HC14YRM13TR and NLV74HC14ADR2G carry AEC-Q100 automotive qualification, suitable for automotive and high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can I use a Schmitt trigger variant as a direct replacement for the 74HC14S14-13?

A: Yes. Schmitt trigger inverters (MC74HC14ADR2G, MM74HC14MX, SN74HC14DR, M74HC14YRM13TR, and others) are functionally compatible direct replacements. The Schmitt trigger feature provides additional hysteresis for noise immunity and does not affect basic inverter operation. All substitute parts maintain identical pinout and 14-SOIC package footprint.

Q: What is the difference between the 74HC14S14-13 and MC74HC14ADR2G?

A: Both are 6-channel inverters in 14-SOIC packaging with 2V ~ 6V supply operation. MC74HC14ADR2G includes Schmitt trigger functionality, lower quiescent current (1 µA vs. 20 µA), faster propagation delay (13ns vs. 21ns), and extended temperature range (-55°C ~ 125°C vs. -40°C ~ 125°C). Electrical interface and pinout are identical.

Q: Are there packaging format alternatives available?

A: The 74HC14S14-13 is supplied in Tape & Reel (TR) format. Substitute parts are available in Cut Tape (CT) & Digi-Reel®, Tube, and Tape & Reel formats. Verify packaging compatibility with your procurement and assembly requirements before selection.

Q: Which substitute part has the best performance characteristics?

A: MC74HC14ADR2G offers the fastest propagation delay (13ns) and lowest quiescent current (1 µA) among active production substitutes. For automotive applications requiring qualification, M74HC14YRM13TR provides AEC-Q100 certification with matching temperature range to the original part.

Q: Can I use discontinued parts like SN74HC14D or CD74HC14M?

A: Discontinued parts remain functionally compatible but carry supply risk. Use only when existing inventory is confirmed available and long-term supply is not required. For new designs, select from active production alternatives: MC74HC14ADR2G, MM74HC14MX, SN74HC14DR, or CD74HC14M96.

Q: What is the operating temperature range consideration for substitution?

A: The 74HC14S14-13 operates -40°C ~ 125°C. Most substitutes support this range or extended range (-55°C ~ 125°C). SN74HC14DR and SN74HC14DE4 are limited to -40°C ~ 85°C; verify application temperature requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the original part specifications.

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