74LVC374APW/AUJ Equivalent & Substitute Parts

Part Overview

The 74LVC374APW/AUJ is a D-type flip-flop logic integrated circuit manufactured by NXP USA Inc., designed for 8-bit data storage and transfer applications. This device features tri-state, non-inverted outputs and operates across a supply voltage range of 1.65V to 3.6V, making it suitable for low-voltage digital systems. The part is currently active in production with 1,080 units in stock. Substitute parts are necessary when the original NXP part is unavailable, when alternative packaging formats are required for assembly compatibility, or when design specifications allow for functionally equivalent alternatives from other manufacturers.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC374APW/AUJ
Manufacturer	NXP USA Inc.
Category	Logic
Series	74LVC
Type	D-Type Flip Flop
Number of Elements	1
Number of Bits per Element	8
Output Type	Tri-State, Non-Inverted
Clock Frequency	150 MHz
Max Propagation Delay @ 3.3V, 50pF	7 ns
Trigger Type	Positive Edge
Current - Output High, Low	24 mA, 24 mA
Voltage - Supply	1.65V ~ 3.6V
Current - Quiescent (Iq)	10 µA
Input Capacitance	4 pF
Operating Temperature	-40°C ~ 125°C
Package / Case	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the 74LVC374APW/AUJ are classified into two categories based on electrical and mechanical compatibility:

Manufacturer Recommended Substitutes (Direct Functional Equivalents): These parts maintain identical or superior electrical specifications and are sourced from Texas Instruments, a qualified alternative manufacturer within the 74LVC logic family. Substitution is based on matching the following critical parameters: D-type flip-flop architecture, 8-bit configuration, tri-state non-inverted output, positive edge trigger, 1.65V–3.6V supply voltage range, 24 mA output current capability, and surface mount packaging. Parts in this group include SN74LVC374ADBR, SN74LVC374APW, SN74LVC374APWRG4, and SN74LVC374APWT.

Parametric Equivalents (Functional Alternatives): These parts satisfy the core functional requirements but may differ in base product number, propagation delay specifications, or operating temperature range. The 74LVC374APW,118 from Nexperia USA Inc. and SN74LVC574APWR/SN74LVC574APWT from Texas Instruments are included in this category. While these devices share the same supply voltage, output current, and package footprint, they represent alternative logic configurations within the 74LVC family and require design verification for specific timing-critical applications.

Parameter Comparison

Parameter	74LVC374APW/AUJ (Main)	SN74LVC374ADBR	SN74LVC374APW	SN74LVC374APWRG4	SN74LVC374APWT	74LVC374APW,118	SN74LVC574APWR	SN74LVC574APWT
Manufacturer	NXP USA Inc.	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Nexperia USA Inc.	Texas Instruments	Texas Instruments
Type	D-Type	D-Type	D-Type	D-Type	D-Type	D-Type	D-Type	D-Type
Number of Bits	8	8	8	8	8	8	8	8
Output Type	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted	Tri-State, Non-Inverted
Clock Frequency	150 MHz	100 MHz	100 MHz	100 MHz	100 MHz	150 MHz	150 MHz	150 MHz
Max Propagation Delay @ 3.3V, 50pF	7 ns	7 ns	7 ns	7 ns	7 ns	7 ns	6.8 ns	6.8 ns
Trigger Type	Positive Edge	Positive Edge	Positive Edge	Positive Edge	Positive Edge	Positive Edge	Positive Edge	Positive Edge
Current - Output High, Low	24 mA, 24 mA	24 mA, 24 mA	24 mA, 24 mA	24 mA, 24 mA	24 mA, 24 mA	24 mA, 24 mA	24 mA, 24 mA	24 mA, 24 mA
Voltage - Supply	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Current - Quiescent (Iq)	10 µA	10 µA	10 µA	10 µA	10 µA	10 µA	10 µA	10 µA
Input Capacitance	4 pF	4 pF	4 pF	4 pF	4 pF	4 pF	4 pF	4 pF
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Package / Case	20-TSSOP (0.173", 4.40mm)	20-SSOP (0.209", 5.30mm)	20-TSSOP (0.173", 4.40mm)	20-TSSOP (0.173", 4.40mm)	20-TSSOP (0.173", 4.40mm)	20-TSSOP (0.173", 4.40mm)	20-TSSOP (0.173", 4.40mm)	20-TSSOP (0.173", 4.40mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Discontinued at DiGi Electronics	Active	Active	Active	Active

Engineering Selection Recommendations

For Direct Pin-Compatible Substitution: SN74LVC374APW and SN74LVC374APWT from Texas Instruments are the primary recommended alternatives. Both maintain identical 20-TSSOP packaging, electrical specifications, and active product status. SN74LVC374APW is available in Tube packaging, while SN74LVC374APWT is supplied in Tape & Reel format. These parts are suitable for applications where the original NXP part is unavailable and packaging format flexibility is acceptable.

For Extended Temperature Range Applications: The 74LVC374APW,118 from Nexperia USA Inc. and SN74LVC574APWR/SN74LVC574APWT from Texas Instruments support the full -40°C to 125°C operating temperature range, matching the original part's thermal specifications. These options are appropriate for industrial and automotive environments requiring extended temperature performance.

For Package Format Alternatives: SN74LVC374ADBR provides a 20-SSOP package (0.209", 5.30mm width) as an alternative to the standard 20-TSSOP format. This substitution is valid only when PCB layout and assembly equipment can accommodate the wider package footprint. All electrical parameters remain compatible with the original specification.

Compliance and Certification: All substitute parts listed are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification, matching the regulatory status of the original 74LVC374APW/AUJ. Moisture sensitivity level remains at MSL 1 (Unlimited) across all alternatives.

Availability Considerations: SN74LVC574APWR demonstrates the highest inventory availability at 237,968 units in stock. SN74LVC374APWRG4, while functionally equivalent, is discontinued at DiGi Electronics and should be avoided for new designs requiring long-term supply assurance.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC374ADBR be used as a direct replacement for 74LVC374APW/AUJ? A: SN74LVC374ADBR is electrically equivalent but uses a 20-SSOP package (0.209", 5.30mm width) instead of the 20-TSSOP format (0.173", 4.40mm width). This substitution requires PCB redesign and is only valid if assembly equipment supports the wider package. All electrical parameters are compatible.

Q: What is the difference between SN74LVC374APWT and SN74LVC374APW? A: Both parts are identical in electrical specifications and 20-TSSOP packaging. The primary difference is packaging format: SN74LVC374APWT is supplied in Tape & Reel (TR) format for automated assembly, while SN74LVC374APW is supplied in Tube format for manual handling. Selection depends on assembly process requirements.

Q: Are the SN74LVC574 series parts compatible with 74LVC374 designs? A: SN74LVC574APWR and SN74LVC574APWT are parametric equivalents with identical electrical performance and package footprint. However, they represent a different base product number within the 74LVC family. Compatibility depends on specific circuit requirements and should be verified against design specifications before implementation.

Q: Why do some substitute parts have lower clock frequency ratings? A: Texas Instruments SN74LVC374 variants are rated at 100 MHz, while the NXP original and Nexperia alternative are rated at 150 MHz. For applications operating below 100 MHz, the lower-rated parts are fully compatible. Applications requiring operation above 100 MHz must use parts rated for 150 MHz.

Q: What is the significance of the operating temperature range difference? A: The original 74LVC374APW/AUJ and Nexperia 74LVC374APW,118 support -40°C to 125°C operation. Texas Instruments SN74LVC374 variants support -40°C to 85°C. For applications requiring operation above 85°C, only the NXP or Nexperia parts are suitable. Standard commercial applications typically operate within the -40°C to 85°C range.

Q: Are all listed parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory compliance of the original 74LVC374APW/AUJ.

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