SN74ACT374PW Equivalent & Substitute Parts

Part Overview

The SN74ACT374PW is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit positive edge triggering in a 20-TSSOP surface mount package. This part is discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. The device operates at 160 MHz clock frequency with tri-state, non-inverted outputs suitable for digital logic applications requiring edge-triggered data storage and output control.

Substiute Parts

SN74ACT374PW

Texas InstrumentsIn Stock: 3334SN74ACT374PW Datasheet

Current PartRFQ

SN74ACT374PWR

Texas InstrumentsIn Stock: 1954SN74ACT374PWR Datasheet

DirectRFQ

MC74ACT374DTR2G

onsemiIn Stock: 3521MC74ACT374DTR2G Datasheet

MFR RecommendedRFQ

MC74ACT574DTR2G

onsemiIn Stock: 3575MC74ACT574DTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74ACT374PW is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• D-Type flip-flop architecture with 1 element, 8-bit configuration
• Positive edge trigger mechanism
• Tri-state, non-inverted output type
• 20-TSSOP surface mount package (0.173", 4.40mm Width)
• Supply voltage range: 4.5V ~ 5.5V
• Operating temperature: -40°C ~ 85°C
• RoHS3 compliance and MSL Level 1

Acceptable Parameter Variations:

• Clock frequency: 100 MHz or higher (SN74ACT374PW operates at 160 MHz; MC74ACT574DTR2G operates at 100 MHz, which is acceptable for applications not requiring maximum frequency)
• Quiescent current: Up to 8 µA (SN74ACT374PW: 4 µA; MC74ACT374DTR2G and MC74ACT574DTR2G: 8 µA)
• Propagation delay: Up to 11 ns @ 5V, 50pF (SN74ACT374PW: 10 ns; MC74ACT574DTR2G: 11 ns)
• Packaging format: Tube, Cut Tape, or Tape & Reel are interchangeable for component selection

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SN74ACT374PWR

The SN74ACT374PWR is the direct equivalent to SN74ACT374PW, manufactured by Texas Instruments with identical electrical specifications and 20-TSSOP packaging. The only difference is packaging format (Tape & Reel versus Tube). This part is active and maintains full compatibility with the original design. Selection of SN74ACT374PWR is recommended for applications requiring no design modification.

Secondary Substitute: MC74ACT374DTR2G

The MC74ACT374DTR2G, manufactured by onsemi, provides functional equivalence with identical clock frequency (160 MHz) and propagation delay (10 ns). Quiescent current is higher at 8 µA compared to 4 µA in the original part. This part is active and RoHS3 compliant. Selection is appropriate for applications where the increased quiescent current does not impact power budget constraints.

Tertiary Substitute: MC74ACT574DTR2G

The MC74ACT574DTR2G, manufactured by onsemi, operates at 100 MHz clock frequency with 11 ns propagation delay. Quiescent current is 8 µA. This part is active and RoHS3 compliant. Selection is suitable only for applications where maximum clock frequency requirement is 100 MHz or lower, as this part does not meet the 160 MHz specification of the original SN74ACT374PW.

All substitute parts maintain RoHS3 compliance, MSL Level 1 rating, and identical supply voltage and operating temperature ranges, ensuring regulatory and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can SN74ACT374PWR be used as a direct replacement for SN74ACT374PW?

A: Yes. SN74ACT374PWR is electrically and functionally identical to SN74ACT374PW. Both are manufactured by Texas Instruments with the same 74ACT series specifications, 160 MHz clock frequency, 10 ns propagation delay, and 20-TSSOP package. The difference is packaging format (Tape & Reel versus Tube), which does not affect component performance or compatibility.

Q: What is the difference between MC74ACT374DTR2G and MC74ACT574DTR2G?

A: Both are onsemi-manufactured 74ACT series D-Type flip-flops in 20-TSSOP packages. MC74ACT374DTR2G operates at 160 MHz with 10 ns propagation delay. MC74ACT574DTR2G operates at 100 MHz with 11 ns propagation delay. The MC74ACT574DTR2G is suitable only for applications not requiring the full 160 MHz frequency specification.

Q: Is the increased quiescent current in onsemi parts a concern?

A: MC74ACT374DTR2G and MC74ACT574DTR2G have quiescent current of 8 µA compared to 4 µA in the original SN74ACT374PW. This difference is relevant only in applications with strict power consumption budgets. For most digital logic applications, this 4 µA increase is negligible. Evaluate based on your specific power requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SN74ACT374PWR, MC74ACT374DTR2G, and MC74ACT574DTR2G are all RoHS3 compliant with MSL Level 1 rating, matching the original SN74ACT374PW. All parts are suitable for applications requiring environmental and regulatory compliance.

Q: Can I use MC74ACT574DTR2G in a design originally specified for SN74ACT374PW?

A: MC74ACT574DTR2G can be used only if your application does not require clock frequencies above 100 MHz. The original SN74ACT374PW operates at 160 MHz. If your circuit operates at or below 100 MHz, MC74ACT574DTR2G is compatible. If your circuit requires 160 MHz operation, use SN74ACT374PWR or MC74ACT374DTR2G instead.

Q: What packaging formats are available for these substitutes?

A: SN74ACT374PW is supplied in Tube packaging. SN74ACT374PWR is supplied in Cut Tape and Digi-Reel format. MC74ACT374DTR2G and MC74ACT574DTR2G are supplied in Tape & Reel format. All formats contain the same component; packaging format selection depends on your procurement and assembly process requirements.