74LVC74APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC74APW,112 is a dual D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc. in 14-TSSOP surface mount packaging. This device provides two independent D-type flip-flops with complementary outputs, set/preset and reset functions, and positive edge triggering. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. Active alternatives from multiple manufacturers maintain functional and electrical compatibility while offering current product status and improved availability.

Key Parameters

Parameter	Value
Manufacturer Part Number	74LVC74APW,112
Manufacturer	Nexperia USA Inc.
Category	Logic
Series	74LVC
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Type	D-Type Flip-Flop
Number of Elements	2
Number of Bits per Element	1
Output Type	Complementary
Trigger Type	Positive Edge
Clock Frequency	150 MHz
Max Propagation Delay @ 3.3V, 50pF	5.2 ns
Voltage - Supply	1.2V ~ 3.6V
Current - Output High, Low	24mA, 24mA
Current - Quiescent (Iq)	10 µA
Input Capacitance	4 pF
Operating Temperature	-40°C ~ 125°C (TA)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 74LVC74APW,112 is determined by strict electrical and mechanical compatibility across the following critical parameters:

Mechanical Compatibility: All substitute parts must use the 14-TSSOP (0.173", 4.40mm Width) surface mount package to ensure PCB footprint compatibility without redesign.

Functional Compatibility: All substitutes must provide dual D-type flip-flops with complementary outputs, set/preset and reset functions, and positive edge triggering.

Electrical Compatibility: Substitutes are grouped into two categories based on voltage supply range and propagation delay specifications:

Category A (74LVC Series - Full Compatibility): Parts maintaining the 1.2V ~ 3.6V or 1.65V ~ 3.6V supply voltage range with 5.2 ns maximum propagation delay at 3.3V, 50pF. These include 74LVC74APW,118, SN74LVC74APW, SN74LVC74APWR, SN74LVC74APWT, and SN74LVC74AQPWREP.

Category B (74LCX Series - Restricted Voltage Range): Parts with 2V ~ 3.6V or 1.65V ~ 3.6V supply voltage range and 7 ns maximum propagation delay at 3.3V, 50pF. These include 74LCX74FT, 74LCX74MTCX, MC74LCX74DTG, and MC74LCX74DTR2G. These substitutes are suitable for applications where the minimum supply voltage requirement of 2V is acceptable.

Extended Temperature Range: SN74LVC74AMPWREP offers -55°C ~ 125°C operating temperature, extending the lower temperature limit for specialized applications.

Parameter Comparison

Part Number	Manufacturer	Series	Package	Clock Frequency	Max Propagation Delay @ 3.3V, 50pF	Voltage - Supply	Operating Temperature	Product Status
74LVC74APW,112	Nexperia USA Inc.	74LVC	14-TSSOP	150 MHz	5.2 ns	1.2V ~ 3.6V	-40°C ~ 125°C	Obsolete
74LVC74APW,118	NXP Semiconductors	74LVC	14-TSSOP	150 MHz	5.2 ns	1.2V ~ 3.6V	-40°C ~ 125°C	Active
74LCX74FT	Toshiba Semiconductor and Storage	74LCX	14-TSSOP	150 MHz	7 ns	1.65V ~ 3.6V	-40°C ~ 85°C	Active
74LCX74MTCX	Fairchild Semiconductor	74LCX	14-TSSOP	150 MHz	7 ns	2V ~ 3.6V	-40°C ~ 85°C	Active
MC74LCX74DTG	onsemi	74LCX	14-TSSOP	150 MHz	7 ns	2V ~ 3.6V	-40°C ~ 85°C	Active
MC74LCX74DTR2G	onsemi	74LCX	14-TSSOP	150 MHz	7 ns	2V ~ 3.6V	-40°C ~ 85°C	Active
SN74LVC74AMPWREP	Texas Instruments	74LVC	14-TSSOP	100 MHz	5.2 ns	2V ~ 3.6V	-55°C ~ 125°C	Active
SN74LVC74APW	Texas Instruments	74LVC	14-TSSOP	150 MHz	5.2 ns	1.65V ~ 3.6V	-40°C ~ 125°C	Active
SN74LVC74APWR	Texas Instruments	74LVC	14-TSSOP	150 MHz	5.2 ns	1.65V ~ 3.6V	-40°C ~ 125°C	Active
SN74LVC74APWT	Texas Instruments	14-TSSOP	150 MHz	5.2 ns	1.65V ~ 3.6V	-40°C ~ 125°C	Active
SN74LVC74AQPWREP	Texas Instruments	74LVC	14-TSSOP	150 MHz	5.2 ns	2V ~ 3.6V	-40°C ~ 125°C	Active

Engineering Selection Recommendations

Primary Substitutes (Category A - 74LVC Series): For applications requiring direct electrical compatibility with the original 74LVC74APW,112 specifications, select from active 74LVC series parts: 74LVC74APW,118, SN74LVC74APW, SN74LVC74APWR, SN74LVC74APWT, or SN74LVC74AQPWREP. These maintain 5.2 ns propagation delay and support the full -40°C ~ 125°C operating temperature range. All are ROHS3 compliant with MSL 1 rating.

Secondary Substitutes (Category B - 74LCX Series): For applications where the minimum supply voltage of 2V is acceptable and the 7 ns propagation delay meets timing requirements, 74LCX series parts (74LCX74FT, 74LCX74MTCX, MC74LCX74DTG, MC74LCX74DTR2G) provide active product status. These operate at -40°C ~ 85°C, which is suitable for standard industrial temperature ranges.

Extended Temperature Applications: SN74LVC74AMPWREP extends the lower operating temperature to -55°C while maintaining 5.2 ns propagation delay and ROHS3 compliance, suitable for military or aerospace temperature specifications.

Packaging Considerations: Verify packaging format requirements (Tube, Cut Tape, Tape & Reel, or Bulk) based on procurement and assembly processes. All parts maintain identical 14-TSSOP footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can 74LCX series parts directly replace 74LVC74APW,112 in all applications?

A: 74LCX series substitutes are electrically compatible for most applications but have two restrictions: minimum supply voltage is 2V (versus 1.2V for 74LVC), and maximum propagation delay is 7 ns (versus 5.2 ns for 74LVC). Applications operating below 2V supply or requiring faster propagation delay must use 74LVC series substitutes.

Q: What is the difference between 74LVC74APW,118 and 74LVC74APW,112?

A: Both are 74LVC series dual D-type flip-flops in 14-TSSOP packaging with identical electrical specifications. The primary difference is product status: 74LVC74APW,112 is obsolete while 74LVC74APW,118 is active. The ",118" suffix indicates a different packaging or distribution variant from NXP Semiconductors.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original part's environmental certifications.

Q: Which substitute offers the widest operating temperature range?

A: SN74LVC74AMPWREP provides -55°C ~ 125°C operating temperature, extending 15°C below the original part's -40°C lower limit. This part is suitable for applications requiring extended low-temperature performance.

Q: Can I use SN74LVC74AMPWREP as a direct replacement if my application only requires -40°C ~ 125°C?

A: Yes. SN74LVC74AMPWREP maintains 5.2 ns propagation delay, 150 MHz clock frequency, and 14-TSSOP packaging. The extended temperature range does not affect compatibility for standard temperature applications. Note that the minimum supply voltage is 2V versus 1.2V for the original part.

Q: What packaging options are available for 74LVC series substitutes?

A: 74LVC series substitutes are available in multiple packaging formats: Tube (SN74LVC74APW), Cut Tape & Digi-Reel (SN74LVC74APWR), Tape & Reel (SN74LVC74APWT, SN74LVC74AQPWREP), and Bulk (74LVC74APW,118). Select based on procurement quantity and assembly requirements.

Q: Are there any functional differences between Texas Instruments and onsemi 74LCX74 variants?

A: MC74LCX74DTG and MC74LCX74DTR2G from onsemi are functionally identical to Toshiba's 74LCX74FT and Fairchild's 74LCX74MTCX. All 74LCX variants share 7 ns propagation delay, 150 MHz clock frequency, and 2V ~ 3.6V supply voltage range. Differences are limited to packaging format and manufacturer certifications.

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