74ALVC373D,118 Equivalent & Substitute Parts

Part Overview

The 74ALVC373D,118 is a D-Type Transparent Latch logic IC manufactured by Nexperia USA Inc., featuring an 8:8 circuit configuration with tri-state output capability. This surface-mount component operates across a 1.65V to 3.6V supply voltage range and is designed for applications requiring transparent latch functionality in digital logic systems. The part maintains Active product status and is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are necessary to address supply chain availability, packaging preferences, or performance optimization within the allowed electrical and mechanical parameter space.

Key Parameters

Parameter	Specification
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8
Output Type	Tri-State
Supply Voltage Range	1.65V ~ 3.6V
Independent Circuits	1
Propagation Delay	2.2ns
Output Current (High/Low)	24mA / 24mA
Operating Temperature	-40°C ~ 85°C
Package / Case	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 74ALVC373D,118 is determined by strict equivalence across the following critical parameters: logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (tri-state), supply voltage range (1.65V ~ 3.6V), independent circuits (1), output current capability (24mA / 24mA), operating temperature range (-40°C ~ 85°C), and package form factor (20-SOIC). Substitute parts are grouped into two categories: parametric equivalents that match all electrical specifications identically, and similar parts that maintain functional equivalence with minor performance variations in propagation delay while preserving all other critical parameters.

Parameter Comparison

Part Number	Manufacturer	Series	Logic Type	Circuit	Output Type	Supply Voltage	Propagation Delay	Output Current (H/L)	Operating Temp	Package	Packaging Type	Product Status
74ALVC373D,118	Nexperia USA Inc.	74ALVC	D-Type Transparent Latch	8:8	Tri-State	1.65V ~ 3.6V	2.2ns	24mA / 24mA	-40°C ~ 85°C	20-SOIC	Tape & Reel (TR)	Active
74ALVC573D,118	Nexperia USA Inc.	74ALVC	D-Type Transparent Latch	8:8	Tri-State	1.65V ~ 3.6V	2.2ns	24mA / 24mA	-40°C ~ 85°C	20-SOIC	Tape & Reel (TR)	Active
SN74ALVCH373DW	Texas Instruments	74ALVCH	D-Type Transparent Latch	8:8	Tri-State	1.65V ~ 3.6V	1ns	24mA / 24mA	-40°C ~ 85°C	20-SOIC	Tube	Active
SN74ALVCH373DWR	Texas Instruments	74ALVCH	D-Type Transparent Latch	8:8	Tri-State	1.65V ~ 3.6V	1ns	24mA / 24mA	-40°C ~ 85°C	20-SOIC	Tape & Reel (TR)	Active
SN74LVC573ADWR	Texas Instruments	74LVC	D-Type Transparent Latch	8:8	Tri-State	1.65V ~ 3.6V	2ns	24mA / 24mA	-40°C ~ 85°C	20-SOIC	Cut Tape (CT) & Digi-Reel®	Active

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original 74ALVC373D,118. Selection between parametric equivalents (74ALVC573D,118 and SN74LVC573ADWR) and performance-enhanced alternatives (SN74ALVCH373DW and SN74ALVCH373DWR) depends on application timing requirements and packaging availability. The Texas Instruments 74ALVCH series variants offer reduced propagation delay (1ns versus 2.2ns), providing performance margin for timing-critical applications while maintaining identical electrical operating parameters. Packaging format selection—Tape & Reel, Tube, or Cut Tape with Digi-Reel—should align with production assembly requirements and inventory management protocols.

Frequently Asked Questions (FAQ)

Q: Can the 74ALVC573D,118 directly replace the 74ALVC373D,118? A: Yes. Both parts are parametric equivalents sharing identical logic type, circuit configuration, supply voltage range, output current capability, operating temperature, and package form factor. The difference in base product number reflects internal architectural variation that does not affect functional substitution within the specified parameter space.

Q: What is the functional difference between the Nexperia 74ALVC series and Texas Instruments 74ALVCH series substitutes? A: Both series maintain identical electrical operating parameters and package compatibility. The 74ALVCH variants (SN74ALVCH373DW and SN74ALVCH373DWR) feature improved propagation delay performance (1ns versus 2.2ns), making them suitable for applications requiring faster signal transition times while preserving all other critical specifications.

Q: Are packaging format differences significant for substitution? A: Packaging format (Tape & Reel, Tube, or Cut Tape with Digi-Reel) affects supply chain logistics and assembly line compatibility but does not impact electrical or mechanical performance. Selection should be based on production equipment capability and inventory management requirements.

Q: Do all substitute parts meet the same compliance standards? A: Yes. All listed parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, ensuring equivalent regulatory and environmental compliance with the original 74ALVC373D,118.

Q: Which substitute offers the best performance improvement? A: The SN74ALVCH373DW and SN74ALVCH373DWR from Texas Instruments provide the lowest propagation delay at 1ns, compared to 2.2ns for the original part. This performance enhancement is available in both Tube and Tape & Reel packaging options.

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