SN74ACT373MDWREP Equivalent & Substitute Parts

Part Overview

The SN74ACT373MDWREP 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 is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance, package compatibility, and functional specifications align with the original design requirements, enabling procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value
Logic Type	D-Type Transparent Latch
Circuit Configuration	8:8
Output Type	Tri-State
Voltage Supply Range	4.5V ~ 5.5V
Propagation Delay Time	8.5ns
Output Current (High/Low)	24mA / 24mA
Package Type	20-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SN74ACT373MDWREP are qualified based on the following criteria:

Electrical Equivalence: All substitute parts maintain identical logic type (D-Type Transparent Latch), circuit configuration (8:8), output type (tri-state), supply voltage range (4.5V ~ 5.5V), propagation delay (8.5ns), and output current specifications (24mA).

Package Compatibility: All substitute parts use the 20-SOIC surface mount package with identical physical dimensions (0.295", 7.50mm Width), ensuring direct PCB footprint compatibility.

Series Alignment: All parts belong to the 74ACT logic series, confirming functional and electrical compatibility.

Compliance Status: All substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements.

Packaging Format Variations: Substitute parts are available in different distribution formats (Tape & Reel or Tube), which do not affect electrical or mechanical compatibility but may influence procurement and handling procedures.

Parameter Comparison

Parameter	SN74ACT373MDWREP (TI)	MC74ACT373DWR2G (onsemi)	MC74ACT373DWG (onsemi)
Manufacturer	Texas Instruments	onsemi	onsemi
Logic Type	D-Type Transparent Latch	D-Type Transparent Latch	D-Type Transparent Latch
Circuit Configuration	8:8	8:8	8:8
Output Type	Tri-State	Tri-State	Tri-State
Voltage Supply Range	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Propagation Delay	8.5ns	8.5ns	8.5ns
Output Current (High/Low)	24mA / 24mA	24mA / 24mA	24mA / 24mA
Operating Temperature	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	20-SOIC	20-SOIC	20-SOIC
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Tape & Reel	Tape & Reel	Tube
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

Primary Consideration - Operating Temperature Range: The SN74ACT373MDWREP operates across -55°C to 125°C, while both onsemi substitutes (MC74ACT373DWR2G and MC74ACT373DWG) operate across -40°C to 85°C. Applications requiring the full extended temperature range of the original part must retain the Texas Instruments device. Applications operating within the -40°C to 85°C range may use either substitute without functional compromise.

Moisture Sensitivity Level (MSL): The SN74ACT373MDWREP carries MSL 1 (Unlimited), indicating no moisture sensitivity constraints. Both onsemi substitutes carry MSL 3 (168 Hours), requiring controlled storage and handling procedures. Applications with extended shelf storage or high-humidity environments should account for MSL 3 handling requirements.

Packaging Format: MC74ACT373DWR2G is supplied in Tape & Reel format, matching the original part's distribution method. MC74ACT373DWG is supplied in Tube format, suitable for lower-volume applications or manual assembly processes.

Regulatory Compliance: All parts maintain ROHS3 compliance and REACH unaffected status, confirming suitability for regulated markets and applications.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT373DWR2G and MC74ACT373DWG be used interchangeably with SN74ACT373MDWREP?

A: Both onsemi parts are electrically and mechanically equivalent for applications operating within -40°C to 85°C. The primary differences are operating temperature range, MSL rating, and packaging format. Verify application temperature requirements before substitution.

Q: What is the impact of MSL 3 rating on the onsemi substitutes?

A: MSL 3 (168 Hours) requires that components be stored in controlled humidity conditions and used within 168 hours of exposure to ambient humidity above 60% RH. Applications with standard manufacturing environments and immediate assembly timelines are unaffected. Extended storage or high-humidity exposure requires desiccant packaging and bake-out procedures.

Q: Are the 20-SOIC packages identical between all three parts?

A: Yes. All three parts use 20-SOIC packages with identical physical dimensions (0.295", 7.50mm Width), ensuring direct PCB footprint compatibility without layout modifications.

Q: Which substitute should be selected for high-volume production?

A: MC74ACT373DWR2G in Tape & Reel format is optimized for automated assembly processes. MC74ACT373DWG in Tube format is suitable for lower-volume or manual assembly applications.

Q: Do all parts meet the same regulatory requirements?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory standards for controlled markets.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message