SN74LVC374ADWRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC374ADWRE4 is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit parallel data storage capability. This device is designed for positive edge-triggered operation in 20-SOIC surface mount packaging. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain functional compatibility across D-Type flip-flop architecture, tri-state output configuration, and electrical performance parameters.

Substiute Parts

SN74LVC374ADWRE4

Texas InstrumentsIn Stock: 896SN74LVC374ADWRE4 Datasheet

Current PartRFQ

SN74LVC374ADWR

Texas InstrumentsIn Stock: 2470SN74LVC374ADWR Datasheet

MFR RecommendedRFQ

74LVC374AD,118

Nexperia USA Inc.In Stock: 273074LVC374AD,118 Datasheet

MFR RecommendedRFQ

MC74LCX374DWR2G

onsemiIn Stock: 2141MC74LCX374DWR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC374ADWRE4 is determined by the following critical parameters:

Functional Requirements:

• D-Type flip-flop architecture with 1 element, 8-bit configuration
• Positive edge trigger operation
• Tri-state, non-inverted output configuration

Electrical Compatibility:

• Supply voltage range must encompass or match 1.65V ~ 3.6V
• Output current capability: 24mA minimum (both high and low)
• Quiescent current: 10 µA maximum
• Clock frequency: 100 MHz minimum
• Propagation delay: 7ns or better @ 3.3V, 50pF load

Physical & Environmental:

• 20-SOIC package footprint (0.295", 7.50mm Width)
• Surface mount mounting type
• Operating temperature range: -40°C minimum to 85°C minimum
• RoHS3 compliance required

Identified Substitutes: Three parts meet these criteria: SN74LVC374ADWR (Texas Instruments), 74LVC374AD,118 (Nexperia USA Inc.), and MC74LCX374DWR2G (onsemi). All maintain the 74LVC/74LCX logic family lineage, identical package geometry, and functional equivalence for D-Type flip-flop applications.

Parameter Comparison

Engineering Selection Recommendations

SN74LVC374ADWR (Texas Instruments)

This part is the manufacturer-recommended direct substitute. It maintains identical electrical specifications, package geometry, and operating parameters as the original SN74LVC374ADWRE4. The primary difference is packaging format (Tape & Reel versus individual packaging). Product status is Active, ensuring long-term availability and supply chain stability. RoHS3 compliance and MSL-1 rating match the original specification. This substitute is the preferred choice for direct replacement in existing designs.

74LVC374AD,118 (Nexperia USA Inc.)

This Nexperia part offers enhanced performance with 150 MHz clock frequency (versus 100 MHz) and extended operating temperature range to 125°C. Electrical specifications remain compatible with the original design. The part is Active in production status. RoHS3 compliance is maintained. This substitute is suitable for applications requiring higher temperature operation or where performance headroom is beneficial.

MC74LCX374DWR2G (onsemi)

This onsemi part operates within the 74LCX logic family, maintaining functional equivalence and package compatibility. Clock frequency is rated at 150 MHz with propagation delay of 8.5ns at 3.3V, 50pF. The minimum supply voltage is 2V (versus 1.65V for the original), and input capacitance is 7 pF. MSL rating is 3 (168 Hours), requiring moisture control during storage and handling. Product status is Active. This substitute is suitable for applications where the 2V minimum supply voltage is acceptable and moisture sensitivity management is feasible.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC374ADWR be used as a direct replacement for SN74LVC374ADWRE4?

A: Yes. SN74LVC374ADWR is the manufacturer-recommended substitute with identical electrical and functional specifications. The difference is packaging format (Tape & Reel). Both parts are 20-SOIC surface mount packages with matching pin configurations and electrical performance.

Q: What is the primary reason for substitution?

A: The SN74LVC374ADWRE4 is discontinued at DiGi Electronics. Active alternatives ensure continued availability for production and maintenance applications.

Q: Are all three substitutes pin-compatible?

A: Yes. All three substitutes maintain the 20-SOIC package footprint with identical pin assignments for D-Type flip-flop operation. PCB layout and schematic connections require no modification.

Q: Which substitute offers the best performance?

A: Both 74LVC374AD,118 and MC74LCX374DWR2G offer 150 MHz clock frequency versus 100 MHz for the original. The 74LVC374AD,118 provides extended temperature range to 125°C. Selection depends on application requirements.

Q: What is the difference between 74LVC and 74LCX logic families?

A: Both are low-voltage CMOS logic families with compatible functional operation. The 74LCX series (MC74LCX374DWR2G) has a minimum supply voltage of 2V versus 1.65V for 74LVC. Input capacitance differs slightly (7 pF versus 4 pF).

Q: Does MC74LCX374DWR2G require special handling?

A: Yes. The MSL-3 rating (168 Hours) requires moisture control during storage and handling. Parts must be stored in dry conditions and baked before reflow soldering if moisture absorption occurs. The original part has MSL-1 (Unlimited), requiring no special moisture management.

Q: Can these parts be mixed in the same production batch?

A: Yes, provided the application design accommodates the parameter variations listed in the comparison table. Verify that supply voltage range, operating temperature, and propagation delay specifications align with circuit requirements.

Q: What is the inventory status of these substitutes?

A: SN74LVC374ADWR has 2,459 units in stock. 74LVC374AD,118 has 2,704 units in stock. MC74LCX374DWR2G has 2,097 units in stock. All are available as new original parts.