SN74LVTH373IPWREP Equivalent & Substitute Parts

Part Overview

The SN74LVTH373IPWREP is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output capability. This component operates within a 2.7V to 3.6V supply voltage range and is housed in a 20-TSSOP surface mount package. The part is currently in active product status with 806 units available in inventory.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or alternative sourcing is required for supply chain optimization. The following equivalent and substitute parts maintain functional and electrical compatibility based on identical or equivalent parameter specifications.

Key Parameters

Parameter	Specification
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8
Output Type	Tri-State
Supply Voltage Range	2.7V ~ 3.6V
Independent Circuits	1
Propagation Delay	2.7ns
Output Current (High/Low)	32mA / 64mA
Operating Temperature Range	-40°C ~ 85°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

Substitute parts for the SN74LVTH373IPWREP are classified based on strict electrical and mechanical parameter equivalence. The substitution logic is determined by the following critical parameters:

Logic Type: D-Type Transparent Latch
Circuit Configuration: 8:8
Output Type: Tri-State
Supply Voltage Range: 2.7V ~ 3.6V
Package / Case: 20-TSSOP (0.173", 4.40mm Width)
Operating Temperature Range: -40°C ~ 85°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All substitute parts listed maintain these core parameters, ensuring functional and electrical compatibility within the specified operating conditions.

Parameter Comparison

Parameter	SN74LVTH373IPWREP (Main)	SN74LVTH373PWR	74LVTH373MTCX	74LVT573PW,118
Manufacturer	Texas Instruments	Texas Instruments	onsemi	Nexperia USA Inc.
Logic Type	D-Type Transparent Latch	D-Type Transparent Latch	D-Type Transparent Latch	D-Type Transparent Latch
Circuit Configuration	8:8	8:8	8:8	8:8
Output Type	Tri-State	Tri-State	Tri-State	Tri-State
Supply Voltage Range	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Independent Circuits	1	1	1	1
Propagation Delay	2.7ns	2.7ns	1.5ns	2.7ns
Output Current (High/Low)	32mA / 64mA	32mA / 64mA	32mA / 64mA	32mA / 64mA
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Status	806 Pcs New Original	2640 Pcs New Original	3300 Pcs New Original	7867 Pcs New Original

Engineering Selection Recommendations

SN74LVTH373PWR (Texas Instruments): This part is a parametric equivalent manufactured by the same supplier as the main part. It maintains identical electrical specifications and is in active product status. Higher inventory availability (2640 units) provides supply chain flexibility.

74LVTH373MTCX (onsemi): This part is manufacturer-recommended as an equivalent. While it exhibits improved propagation delay performance (1.5ns versus 2.7ns), all other electrical and mechanical parameters remain equivalent. The part is designated as Last Time Buy status, indicating limited future availability. Current inventory of 3300 units is available.

74LVT573PW,118 (Nexperia USA Inc.): This part is a parametric equivalent from an alternative manufacturer. It maintains all critical electrical specifications and is in active product status. The highest inventory availability (7867 units) among all substitutes supports long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can SN74LVTH373PWR be used as a direct replacement for SN74LVTH373IPWREP?

A: Yes. Both parts are manufactured by Texas Instruments and maintain identical electrical and mechanical specifications, including logic type, circuit configuration, output type, supply voltage range, propagation delay, output current ratings, operating temperature range, and package type.

Q: What is the significance of the propagation delay difference in 74LVTH373MTCX?

A: The 74LVTH373MTCX exhibits a propagation delay of 1.5ns compared to 2.7ns in the main part. This represents improved performance and does not create compatibility issues. The part remains functionally equivalent for all applications where the main part is specified.

Q: Why is 74LVTH373MTCX marked as Last Time Buy?

A: Last Time Buy status indicates that onsemi has discontinued this product line. While current inventory is available, future procurement may not be possible. For long-term applications, SN74LVTH373PWR or 74LVT573PW,118 are recommended.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), matching the environmental and regulatory requirements of the main part.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. All substitute parts use the identical 20-TSSOP surface mount package with matching pin configurations, allowing direct PCB layout compatibility without design modifications.

Q: Which substitute part offers the best supply chain continuity?

A: 74LVT573PW,118 from Nexperia USA Inc. is in active product status with the highest inventory availability (7867 units), providing optimal long-term supply chain stability.

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