74ACT374MTCX Equivalent & Substitute Parts

Part Overview

The 74ACT374MTCX is a D-type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit capacity and positive edge triggering. This component operates at a clock frequency of 160 MHz with tri-state, non-inverted outputs. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74ACT374MTCX

onsemiIn Stock: 529474ACT374MTCX Datasheet

Current PartRFQ

MC74ACT374DTR2G

onsemiIn Stock: 3521MC74ACT374DTR2G Datasheet

DirectRFQ

SN74ACT374PW

Texas InstrumentsIn Stock: 3334SN74ACT374PW Datasheet

DirectRFQ

74AHCT374PW,118

Nexperia USA Inc.In Stock: 345574AHCT374PW,118 Datasheet

SimilarRFQ

SN74ACT374DBR

Texas InstrumentsIn Stock: 2186SN74ACT374DBR Datasheet

SimilarRFQ

SN74ACT374PWR

Texas InstrumentsIn Stock: 1954SN74ACT374PWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ACT374MTCX are classified into three categories based on substitution compatibility:

Direct Manufacturer Substitutes maintain identical electrical and mechanical specifications, allowing pin-for-pin replacement without circuit modification. These parts share the same base product number (74ACT374), package type (20-TSSOP), and all critical electrical parameters including clock frequency, propagation delay, output current, and supply voltage range.

Similar Substitutes share the same functional topology and package footprint but may have variations in non-critical parameters such as quiescent current, propagation delay, or operating temperature range. These parts are compatible for most applications but require verification of specific performance requirements.

Parametric Equivalents meet the core electrical requirements but may differ in packaging format or supplier device package designation. These parts are suitable when packaging flexibility is acceptable.

Key parameters determining substitution eligibility:

• D-Type flip-flop topology with 8-bit capacity
• Positive edge trigger configuration
• Tri-state, non-inverted output type
• 20-pin package (TSSOP or SSOP variants)
• Supply voltage range 4.5V ~ 5.5V
• Operating temperature range compatibility

Parameter Comparison

Engineering Selection Recommendations

MC74ACT374DTR2G (onsemi) is the primary direct substitute. It maintains identical electrical specifications and 20-TSSOP package compatibility. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Quiescent current is reduced to 8 µA compared to the original 40 µA, representing improved power efficiency without functional impact.

SN74ACT374PW (Texas Instruments) provides direct electrical equivalence with identical clock frequency, propagation delay, and output current specifications. This part is discontinued at DiGi Electronics but remains available through alternative distribution channels. ROHS3 compliance and unlimited MSL rating are confirmed. Quiescent current is 4 µA.

SN74ACT374PWR (Texas Instruments) offers parametric equivalence with active product status. All critical electrical parameters match the original specification. This part is suitable for new designs requiring active supplier support and long-term availability assurance.

SN74ACT374DBR (Texas Instruments) is compatible for applications where package footprint flexibility is acceptable. The 20-SSOP package (0.209" width) differs from the original 20-TSSOP (0.173" width), requiring PCB layout verification. Propagation delay is improved at 8.5 ns. The part is active with ROHS3 compliance.

74AHCT374PW,118 (Nexperia USA Inc.) represents a similar substitute with extended operating temperature range (-40°C to 125°C). Clock frequency is reduced to 130 MHz and output current is limited to 8 mA per line. This part is suitable for applications where the reduced performance parameters are acceptable and extended temperature operation is required.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT374DTR2G replace 74ACT374MTCX directly?

A: Yes. MC74ACT374DTR2G is a direct substitute with identical electrical specifications, 20-TSSOP package, and pin configuration. No circuit modifications are required. The part is currently in active production.

Q: What is the difference between 20-TSSOP and 20-SSOP packages?

A: Both are 20-pin surface-mount packages with identical pin assignments. The primary difference is package width: 20-TSSOP is 0.173" (4.40mm) wide, while 20-SSOP is 0.209" (5.30mm) wide. PCB footprint and land pattern dimensions differ accordingly. SN74ACT374DBR uses the wider 20-SSOP package.

Q: Why does MC74ACT374DTR2G have lower quiescent current (8 µA) than the original (40 µA)?

A: Quiescent current variation reflects manufacturing process improvements and die design optimization over time. The reduced value does not affect functional compatibility and represents improved power efficiency for battery-powered or low-power applications.

Q: Is 74AHCT374PW,118 compatible with designs requiring 160 MHz operation?

A: No. The 74AHCT374PW,118 operates at a maximum clock frequency of 130 MHz, which is 20 MHz below the original specification. This part is suitable only for applications with clock frequencies at or below 130 MHz.

Q: What does "Discontinued at DiGi Electronics" mean for SN74ACT374PW?

A: This designation indicates the part is no longer actively stocked by DiGi Electronics distribution. However, the part may remain available through alternative distributors or as existing inventory. Verify availability with secondary sources before design commitment.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed (MC74ACT374DTR2G, SN74ACT374PW, 74AHCT374PW,118, SN74ACT374DBR, SN74ACT374PWR) are confirmed ROHS3 compliant. The original 74ACT374MTCX compliance status is not specified in available documentation.

Q: Can I use SN74ACT374DBR in a design originally specified for 20-TSSOP?

A: SN74ACT374DBR uses a 20-SSOP package with different physical dimensions. PCB footprint, land pattern, and solder paste stencil must be verified for compatibility. Electrical functionality is identical, but mechanical fit requires validation.

Q: Which substitute offers the best long-term availability?

A: MC74ACT374DTR2G and SN74ACT374PWR both carry active product status from established manufacturers. MC74ACT374DTR2G is the direct onsemi equivalent, while SN74ACT374PWR provides Texas Instruments support. Both are suitable for new designs requiring supplier continuity.