SN74LVC2G74DCUTE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC2G74DCUTE4 is a dual D-type flip-flop logic integrated circuit manufactured by Texas Instruments, housed in an 8-VFSOP surface mount package. This component functions as a Set/Preset and Reset flip-flop with complementary outputs, operating across a wide voltage supply range of 1.65V to 5.5V. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

SN74LVC2G74DCUTE4

Texas InstrumentsIn Stock: 872SN74LVC2G74DCUTE4 Datasheet

Current PartRFQ

SN74LVC2G74DCUT

Texas InstrumentsIn Stock: 3703SN74LVC2G74DCUT Datasheet

Parametric EquivalentRFQ

74LVC1G74DC,125

Nexperia USA Inc.In Stock: 326474LVC1G74DC,125 Datasheet

MFR RecommendedRFQ

74LVC2G74DC,125

Nexperia USA Inc.In Stock: 1988974LVC2G74DC,125 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LVC2G74DCUTE4 is determined by strict equivalence across the following critical parameters:

Mandatory Compatibility Criteria:

• D-Type flip-flop architecture with complementary outputs
• Single element, 1-bit configuration
• Positive edge trigger functionality
• Set/Preset and Reset function capability
• 8-VFSOP package form factor (0.091", 2.30mm Width)
• Surface mount mounting type
• Voltage supply range encompassing 1.65V ~ 5.5V
• Operating temperature range of -40°C ~ 125°C
• RoHS3 compliance and MSL Level 1 rating

Identified Substitute Parts:

1. SN74LVC2G74DCUT (Texas Instruments) – Parametric equivalent with identical base product number (74LVC2G74), same package, and active product status. Packaging differs (Tape & Reel vs. Tube).

2. 74LVC1G74DC,125 (Nexperia USA Inc.) – Single-element D-type flip-flop with identical package and functional characteristics. Base product number differs (74LVC1G74 vs. 74LVC2G74), indicating single versus dual element configuration, but electrical parameters remain compatible for single-element applications.

3. 74LVC2G74DC,125 (Nexperia USA Inc.) – Dual-element D-type flip-flop with matching base product number (74LVC2G74), identical package, and active product status. Packaging differs (Cut Tape & Digi-Reel vs. Tube).

Parameter Comparison

Engineering Selection Recommendations

SN74LVC2G74DCUT (Texas Instruments): This part maintains identical electrical specifications and base product number (74LVC2G74) to the main part, with the primary distinction being packaging format (Tape & Reel versus Tube). Active product status and full RoHS3 compliance make this the preferred direct replacement for new production and inventory replenishment. Propagation delay of 5.4 ns at 5V, 50pF remains within acceptable tolerance for timing-critical applications.

74LVC1G74DC,125 (Nexperia USA Inc.): This single-element variant offers improved performance characteristics, including 200 MHz clock frequency and 4.1 ns propagation delay. Lower quiescent current (4 µA) and input capacitance (4 pF) provide power efficiency advantages. Suitable for applications where single flip-flop functionality is required and performance enhancement is beneficial. Active product status and RoHS3 compliance ensure regulatory compliance.

74LVC2G74DC,125 (Nexperia USA Inc.): This dual-element variant matches the base product number (74LVC2G74) and provides identical functional architecture. Enhanced clock frequency (200 MHz) and reduced propagation delay (4.1 ns) deliver performance improvements. Higher quiescent current (40 µA) represents the only electrical trade-off. Active product status, extensive inventory availability (19,788 units), and RoHS3 compliance support high-volume production requirements.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC2G74DCUT be used as a direct replacement for the SN74LVC2G74DCUTE4?

A: Yes. Both parts share identical electrical specifications, base product number (74LVC2G74), package form factor (8-VFSOP), and functional architecture. The difference is packaging format: SN74LVC2G74DCUT is supplied in Tape & Reel format, while SN74LVC2G74DCUTE4 is supplied in Tube format. Electrical performance and PCB compatibility are identical.

Q: What is the difference between the 74LVC1G74DC,125 and 74LVC2G74DC,125?

A: The primary difference is element count: 74LVC1G74 contains a single D-type flip-flop, while 74LVC2G74 contains two independent D-type flip-flops. Both share the same 8-VFSOP package and electrical operating parameters. Selection depends on circuit requirements for single versus dual flip-flop functionality.

Q: Are all substitute parts compatible with the original PCB design?

A: Yes. All substitute parts use the identical 8-VFSOP (0.091", 2.30mm Width) package with surface mount configuration. Pin-to-pin compatibility is maintained across all listed substitutes, allowing direct PCB placement without layout modification.

Q: Do the Nexperia parts meet the same compliance standards as the Texas Instruments original?

A: Yes. All substitute parts carry RoHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original part's regulatory status. REACH compliance is unaffected across all variants.

Q: Which substitute offers the best performance improvement?

A: Both Nexperia variants (74LVC1G74DC,125 and 74LVC2G74DC,125) provide 200 MHz clock frequency and 4.1 ns propagation delay, compared to the original's 140 MHz and 5.1 ns. The 74LVC1G74DC,125 additionally offers the lowest quiescent current at 4 µA for power-sensitive applications.

Q: Is the higher quiescent current of the 74LVC2G74DC,125 a concern?

A: The 40 µA quiescent current of 74LVC2G74DC,125 is higher than the original (10 µA) and the 74LVC1G74DC,125 (4 µA). For battery-powered or ultra-low-power applications, this represents a measurable difference. For standard industrial and consumer applications, this increase is negligible relative to overall circuit power consumption.