74LVC373APW,112 Equivalent & Substitute Parts

Part Overview

The 74LVC373APW,112 is a D-Type Transparent Latch logic IC manufactured by Nexperia USA Inc., featuring an 8:8 channel configuration with tri-state output in a 20-TSSOP package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The device operates across a supply voltage range of 1.2V to 3.6V with a propagation delay of 1.5ns and output current capability of 24mA for both high and low states.

Key Parameters

Parameter	Value
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8
Output Type	Tri-State
Voltage Supply Range	1.2V ~ 3.6V
Propagation Delay	1.5ns
Output Current (High/Low)	24mA / 24mA
Operating Temperature	-40°C ~ 125°C
Package Type	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74LVC373APW,112 is determined by the following critical parameters:

Primary Substitution Criteria:

Logic Type: D-Type Transparent Latch
Circuit Configuration: 8:8
Output Type: Tri-State
Propagation Delay: 1.5ns
Output Current: 24mA (High and Low)
Package/Case: 20-TSSOP or compatible footprint
Mounting Type: Surface Mount

Voltage Supply Compatibility: The main part operates at 1.2V ~ 3.6V. Substitute parts with supply ranges of 1.65V ~ 3.6V or 2V ~ 3.6V are functionally compatible, as these ranges encompass the typical operating voltages for this logic family.

Temperature Range Considerations: The main part supports -40°C ~ 125°C. Substitutes with -40°C ~ 85°C or -55°C ~ 125°C ranges are acceptable depending on application requirements.

Package Variants: Substitutes in 20-TSSOP, 20-TVSOP, and 20-SSOP packages are mechanically and electrically compatible, with identical pin configurations and electrical performance.

Parameter Comparison

Part Number	Manufacturer	Series	Voltage Supply	Temp Range	Package	Status	Inventory
74LVC373APW,112	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	-40°C ~ 125°C	20-TSSOP	Obsolete	1116 Pcs
SN74LVC373APWR	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	2427 Pcs
SN74LVC373APW	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	3702 Pcs
SN74LVC373APWT	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	2044 Pcs
SN74LVC373ADGVR	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 85°C	20-TVSOP	Active	2804 Pcs
SN74LVC373AMDBREP	Texas Instruments	74LVC	1.65V ~ 3.6V	-55°C ~ 125°C	20-SSOP	Active	933 Pcs
SN74LVC373AQPWREP	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 125°C	20-TSSOP	Active	1033 Pcs
SN74LVC373APWRG4	Texas Instruments	74LVC	1.65V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Discontinued at DiGi Electronics	3100 Pcs
MC74LCX373DTG	onsemi	74LCX	2V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	3825 Pcs
MC74LCX373DTR2G	onsemi	74LCX	2V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	2900 Pcs
74LCX373MTC	Fairchild Semiconductor	74LCX	2V ~ 3.6V	-40°C ~ 85°C	20-TSSOP	Active	1305 Pcs

Engineering Selection Recommendations

Primary Recommendation: Texas Instruments 74LVC Series

The SN74LVC373APWR, SN74LVC373APW, and SN74LVC373APWT from Texas Instruments are direct functional equivalents in the same 74LVC series. All three maintain identical electrical specifications (1.5ns propagation delay, 24mA output current) and are ROHS3 compliant with MSL 1 rating. These parts are currently active in production with substantial inventory availability. The SN74LVC373AQPWREP variant extends the operating temperature range to -40°C ~ 125°C, matching the original part's thermal specification.

Secondary Recommendation: onsemi 74LCX Series

The MC74LCX373DTG and MC74LCX373DTR2G from onsemi provide functional equivalence with a minimum supply voltage of 2V (versus 1.2V for the original). Both maintain the 1.5ns propagation delay and 24mA output current specifications. These parts are active with high inventory levels and are suitable for applications where the 2V minimum supply voltage is acceptable.

Alternative: Fairchild Semiconductor 74LCX Series

The 74LCX373MTC from Fairchild Semiconductor offers equivalent functionality with a 2V ~ 3.6V supply range. This part is active and available in bulk packaging.

Package Variant Consideration:

The SN74LVC373AMDBREP provides a 20-SSOP package (0.209", 5.30mm width) instead of the standard 20-TSSOP, with extended temperature range (-55°C ~ 125°C). This variant is suitable only if PCB layout accommodates the wider package footprint.

Frequently Asked Questions (FAQ)

Q: Can I use a 74LCX series part as a direct replacement for the 74LVC373APW,112?

A: Yes. The 74LCX series (MC74LCX373DTG, MC74LCX373DTR2G, 74LCX373MTC) are functionally equivalent. The primary difference is the minimum supply voltage: 74LCX requires 2V minimum versus 1.2V for 74LVC. If your application operates above 2V, substitution is valid.

Q: What is the difference between the various Texas Instruments SN74LVC373 variants?

A: All SN74LVC373 variants share identical electrical specifications. Differences are in packaging format (Tube, Tape & Reel, Cut Tape), temperature range, and product status. SN74LVC373AQPWREP extends to -40°C ~ 125°C; others are rated -40°C ~ 85°C. Select based on your temperature requirements and packaging preference.

Q: Is the SN74LVC373ADGVR compatible with the original part?

A: Yes. The ADGVR variant uses a 20-TVSOP package instead of 20-TSSOP, but maintains identical electrical performance and pin configuration. Verify PCB footprint compatibility before selection.

Q: Why does the original part show as obsolete?

A: The 74LVC373APW,112 from Nexperia is classified as obsolete. Active equivalents from Texas Instruments, onsemi, and Fairchild Semiconductor ensure design continuity and procurement availability.

Q: Can I mix packaging formats in production?

A: No. Maintain consistent packaging within a production run. Select one part number and packaging format for your design to ensure consistent assembly and testing procedures.

Q: What is the significance of the MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture baking requirements. All listed substitutes carry this rating, ensuring equivalent handling and storage conditions.

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