CD74ACT373MG4 Equivalent & Substitute Parts

Part Overview

The CD74ACT373MG4 is a D-Type Transparent Latch logic IC manufactured by Texas Instruments, featuring an 8:8 circuit configuration with tri-state output capability in a 20-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The device operates within the 4.5V to 5.5V supply voltage range and is compliant with ROHS3 and REACH standards.

Substiute Parts

CD74ACT373MG4

Texas InstrumentsIn Stock: 1074CD74ACT373MG4 Datasheet

Current PartRFQ

MC74ACT373DWR2G

onsemiIn Stock: 3755MC74ACT373DWR2G Datasheet

DirectRFQ

MC74ACT373DWG

onsemiIn Stock: 1404MC74ACT373DWG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the CD74ACT373MG4 is determined by strict equivalence in the following parameters:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8
• Output Type: Tri-State
• Supply Voltage Range: 4.5V ~ 5.5V
• Package Type: 20-SOIC surface mount
• Current Output Capability: 24mA (High and Low)
• Independent Circuits: 1

The substitute parts identified (MC74ACT373DWR2G and MC74ACT373DWG) maintain identical functional specifications and package geometry, enabling direct replacement in existing designs. Both substitutes are manufactured by onsemi and share the same base product number (74ACT373), confirming functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both onsemi substitutes (MC74ACT373DWR2G and MC74ACT373DWG) are active products with full ROHS3 compliance and REACH unaffected status, providing long-term supply availability compared to the discontinued CD74ACT373MG4.

MC74ACT373DWR2G is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes with high-volume production requirements.

MC74ACT373DWG is supplied in Tube packaging, appropriate for lower-volume applications and manual assembly operations.

Selection between the two onsemi variants should be based on packaging requirements and assembly methodology rather than functional performance, as both maintain identical electrical specifications and package geometry.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT373DWR2G and MC74ACT373DWG be used interchangeably with CD74ACT373MG4?

A: Yes. Both onsemi parts maintain identical logic type, circuit configuration, output type, supply voltage range, output current capability, and 20-SOIC package dimensions. Direct substitution is functionally equivalent.

Q: What is the difference between MC74ACT373DWR2G and MC74ACT373DWG?

A: The primary difference is packaging format. MC74ACT373DWR2G uses Tape & Reel packaging for automated assembly, while MC74ACT373DWG uses Tube packaging for manual handling. Electrical specifications and package geometry are identical.

Q: Are there operating temperature differences between the original and substitutes?

A: Yes. The CD74ACT373MG4 operates from -55°C to 125°C, while both onsemi substitutes operate from -40°C to 85°C. Applications requiring the full -55°C to 125°C range must evaluate whether the narrower temperature range of the substitutes is acceptable for their specific use case.

Q: What is the propagation delay difference?

A: The CD74ACT373MG4 specifies 3ns propagation delay, while both onsemi substitutes specify 8.5ns. Applications with timing-critical requirements must confirm that the longer propagation delay does not impact system performance.

Q: Are moisture sensitivity levels different?

A: Yes. The CD74ACT373MG4 has MSL 1 (Unlimited), while both onsemi substitutes have MSL 3 (168 Hours). This affects storage and handling requirements. MSL 3 components require controlled humidity storage and have a 168-hour floor life after moisture exposure.

Q: Are all parts ROHS3 compliant?

A: Yes. The CD74ACT373MG4 and both onsemi substitutes are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.