SN74ACT373DW Equivalent & Substitute Parts

Part Overview

The SN74ACT373DW is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output in a 20-SOIC surface mount package. This part is currently discontinued at DiGi Electronics, making equivalent substitute parts necessary for ongoing production and maintenance applications. The 74ACT373 series provides transparent latch functionality suitable for data storage and bus interface applications in digital logic systems.

Substiute Parts

SN74ACT373DW

Texas InstrumentsIn Stock: 1749SN74ACT373DW Datasheet

Current PartRFQ

SN74ACT373DWR

Texas InstrumentsIn Stock: 5468SN74ACT373DWR Datasheet

DirectRFQ

MC74ACT373DWR2G

onsemiIn Stock: 3755MC74ACT373DWR2G Datasheet

DirectRFQ

MC74ACT373DWG

onsemiIn Stock: 1404MC74ACT373DWG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SN74ACT373DW are qualified based on the following criteria:

Electrical Parameters (Must Match):

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Supply Voltage Range: 4.5V ~ 5.5V
• Propagation Delay Time: 8.5ns
• Output Current: 24mA (High and Low)
• Operating Temperature Range: -40°C ~ 85°C

Mechanical Parameters (Must Match):

• Package / Case: 20-SOIC
• Mounting Type: Surface Mount

Compliance Parameters:

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99

All substitute parts listed maintain identical electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

SN74ACT373DWR (Texas Instruments): This part maintains active product status from the original manufacturer and is available in Cut Tape and Digi-Reel packaging formats. It provides the most direct continuity with the discontinued SN74ACT373DW, with identical electrical specifications and MSL rating of 1 (Unlimited), indicating superior moisture handling characteristics for storage and handling.

MC74ACT373DWR2G (onsemi): This substitute is available in Tape & Reel packaging and maintains active product status. The MSL rating of 3 (168 Hours) requires controlled storage conditions but provides full electrical equivalence. This option is suitable for high-volume production environments with proper moisture management protocols.

MC74ACT373DWG (onsemi): This part is available in Tube packaging, matching the original packaging format of the SN74ACT373DW. It maintains active product status and full electrical equivalence. The MSL rating of 3 (168 Hours) applies the same moisture sensitivity considerations as the MC74ACT373DWR2G variant.

All three substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SN74ACT373DWR be used as a direct replacement for SN74ACT373DW?

A: Yes. Both parts share identical electrical parameters (logic type, circuit configuration, output type, supply voltage, propagation delay, output current, and operating temperature range) and mechanical specifications (20-SOIC package, surface mount). The primary difference is product status and packaging format. SN74ACT373DWR is available in Cut Tape and Digi-Reel formats, while SN74ACT373DW was supplied in Tube packaging.

Q: What is the difference between the Texas Instruments and onsemi substitute options?

A: All three substitute parts (SN74ACT373DWR, MC74ACT373DWR2G, and MC74ACT373DWG) provide identical electrical functionality. The differences are: manufacturer (Texas Instruments vs. onsemi), packaging format (Cut Tape/Digi-Reel vs. Tape & Reel vs. Tube), and moisture sensitivity level (MSL 1 vs. MSL 3). Selection depends on procurement requirements, packaging preferences, and storage environment conditions.

Q: What does MSL rating mean for these parts?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be exposed to moisture at specified temperature and humidity conditions before soldering. MSL 1 (Unlimited) means the part has no moisture sensitivity restrictions. MSL 3 (168 Hours) means the part must be soldered within 168 hours of exposure to the specified moisture environment. Parts with MSL 3 require controlled storage in dry conditions or desiccant packaging.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed (SN74ACT373DWR, MC74ACT373DWR2G, and MC74ACT373DWG) are ROHS3 compliant and REACH unaffected, meeting current environmental regulations for electronic components.

Q: Can I mix packaging formats in production?

A: Yes, provided your assembly process accommodates the different packaging formats. SN74ACT373DWR is available in Cut Tape and Digi-Reel, MC74ACT373DWR2G in Tape & Reel, and MC74ACT373DWG in Tube. Verify your pick-and-place equipment compatibility with each packaging format before implementation.

Q: What is the base product number for all these parts?

A: The base product number is 74ACT373. All listed parts (SN74ACT373DW, SN74ACT373DWR, MC74ACT373DWR2G, and MC74ACT373DWG) share this common base designation, indicating they are functionally equivalent variants within the 74ACT373 logic family.