74HC14D,652 Equivalent & Substitute Parts

Part Overview

The 74HC14D,652 is a 6-channel inverter IC with Schmitt trigger inputs manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This logic component operates across a 2V to 6V supply voltage range and features Schmitt trigger functionality for noise immunity in digital signal processing applications. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

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	21ns
Operating Temperature	-40°C ~ 125°C
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the 74HC14D,652 is determined by strict equivalence across the following critical parameters:

Logic Type: Inverter with 6 channels and 1 input per channel
Schmitt Trigger feature requirement
Supply voltage range: 2V ~ 6V
Package type: 14-SOIC surface mount
Propagation delay: 21ns maximum at 6V, 50pF load
Input and output current specifications
Input logic level thresholds
Operating temperature range: minimum -40°C to 125°C
RoHS3 compliance and MSL Level 1

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Equivalents maintain identical electrical specifications and packaging, differing only in manufacturer or product status.

Similar Parts share all critical electrical parameters but may have extended temperature ranges or different packaging options, maintaining full functional compatibility.

Upgrade Parts offer identical or superior electrical performance with extended operating temperature ranges, providing enhanced reliability for demanding applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Logic Type	Circuits	Supply Voltage	Quiescent Current (Max)	Propagation Delay @ 6V, 50pF	Operating Temperature	Package	Packaging Type
74HC14D,652	Nexperia USA Inc.	Obsolete	Inverter	6	2V ~ 6V	2 µA	21ns	-40°C ~ 125°C	14-SOIC	-
74HC14D,653	Nexperia USA Inc.	Active	Inverter	6	2V ~ 6V	2 µA	21ns	-40°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel
SN74HC14QDRG4Q1	Texas Instruments	Active	Inverter	6	2V ~ 6V	2 µA	21ns	-40°C ~ 125°C	14-SOIC	Tape & Reel
SN74HC14QDRQ1	Texas Instruments	Active	Inverter	6	2V ~ 6V	2 µA	21ns	-40°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel
MM74HC14M	onsemi	Active	Inverter	6	2V ~ 6V	2 µA	21ns	-55°C ~ 125°C	14-SOIC	Tube
MM74HC14MX	onsemi	Active	Inverter	6	2V ~ 6V	2 µA	21ns	-55°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel
CD74HC14M	Texas Instruments	Discontinued at DiGi Electronics	Inverter	6	2V ~ 6V	2 µA	23ns	-55°C ~ 125°C	14-SOIC	Tube
CD74HC14M96	Texas Instruments	Active	Inverter	6	2V ~ 6V	2 µA	23ns	-55°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel
CD74HC14MT	Texas Instruments	Obsolete	Inverter	6	2V ~ 6V	2 µA	23ns	-55°C ~ 125°C	14-SOIC	Tape & Reel
M74HC14YRM13TR	STMicroelectronics	Active	Inverter	6	2V ~ 6V	1 µA	21ns	-40°C ~ 125°C	14-SOIC	Cut Tape & Digi-Reel
MC74HC14ADG	onsemi	Active	Inverter	6	2V ~ 6V	1 µA	13ns	-55°C ~ 125°C	14-SOIC	Tube

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

74HC14D,653 (Nexperia) is the direct active equivalent with identical electrical parameters and operating temperature range. This part maintains the same 21ns propagation delay and 2V to 6V supply voltage specification.
SN74HC14QDRG4Q1 and SN74HC14QDRQ1 (Texas Instruments) provide direct electrical equivalence with AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade components.

For Extended Temperature Range Applications:

MM74HC14M and MM74HC14MX (onsemi) extend the operating temperature range to -55°C to 125°C while maintaining identical electrical performance, appropriate for industrial and harsh environment applications.
MC74HC14ADG (onsemi) offers the lowest propagation delay at 13ns with extended temperature range and reduced quiescent current at 1 µA, providing performance enhancement for timing-critical designs.

For Automotive Applications:

M74HC14YRM13TR (STMicroelectronics) carries AEC-Q100 automotive qualification with -40°C to 125°C operating range and reduced quiescent current at 1 µA, meeting automotive reliability standards.

Parts to Avoid:

CD74HC14M and CD74HC14MT (Texas Instruments) are discontinued or obsolete status, limiting long-term availability.
All substitute parts maintain ROHS3 compliance and MSL Level 1 rating consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can I use 74HC14D,653 as a direct replacement for 74HC14D,652? A: Yes. The 74HC14D,653 is electrically identical to the 74HC14D,652, differing only in product status (active versus obsolete) and packaging format (Cut Tape & Digi-Reel versus unspecified). Both maintain the same 21ns propagation delay, 2V to 6V supply voltage, and -40°C to 125°C operating temperature range.

Q: What is the difference between the Texas Instruments SN74HC14QDRG4Q1 and SN74HC14QDRQ1? A: Both parts are electrically identical with identical electrical specifications. The primary difference is packaging format: SN74HC14QDRG4Q1 is supplied in Tape & Reel format, while SN74HC14QDRQ1 is supplied in Cut Tape & Digi-Reel format. Both carry AEC-Q100 automotive qualification.

Q: Why do some substitute parts have different propagation delays (23ns versus 21ns)? A: CD74HC14M, CD74HC14M96, and CD74HC14MT (Texas Instruments) specify 23ns maximum propagation delay at 6V with 50pF load, compared to 21ns for the original part. This 2ns difference remains within typical design margins for most applications but should be evaluated for timing-critical circuits.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity level) rating, consistent with the original 74HC14D,652 specification.

Q: Which substitute offers the best performance improvement? A: MC74HC14ADG (onsemi) provides the lowest propagation delay at 13ns with reduced quiescent current at 1 µA and extended operating temperature range to -55°C. This part offers performance enhancement for timing-sensitive applications while maintaining full functional compatibility.

Q: Can I use parts with extended temperature ranges (-55°C to 125°C) in place of the original (-40°C to 125°C)? A: Yes. Extended temperature range parts are fully compatible and provide enhanced reliability for applications operating at lower temperatures. No design modifications are required.

Q: What packaging options are available for substitutes? A: Substitute parts are available in Tube, Cut Tape & Digi-Reel, and Tape & Reel packaging formats. All maintain the 14-SOIC (0.154", 3.90mm Width) physical package specification for direct PCB compatibility.

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