SN74LVC374ADBRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC374ADBRE4 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 operates as a standard positive-edge-triggered flip-flop with tri-state, non-inverted outputs, designed for low-voltage CMOS applications. The part is currently discontinued at DiGi Electronics, making equivalent substitutes necessary for ongoing design requirements and procurement needs.

Substiute Parts

SN74LVC374ADBRE4

Texas InstrumentsIn Stock: 1101SN74LVC374ADBRE4 Datasheet

Current PartRFQ

SN74LVC374ADBR

Texas InstrumentsIn Stock: 3879SN74LVC374ADBR Datasheet

Parametric EquivalentRFQ

MC74LCX374DTR2G

onsemiIn Stock: 8123MC74LCX374DTR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC374ADBRE4 is determined by the following critical parameters:

Functional Equivalence Requirements:

• D-Type flip-flop architecture with 1 element and 8-bit configuration
• Positive edge-triggered operation
• Tri-state, non-inverted output configuration
• Standard logic function classification

Electrical Compatibility Requirements:

• Clock frequency capability of 100 MHz or greater
• Voltage supply range encompassing 1.65V ~ 3.6V
• Output drive capability of 24mA minimum (both high and low)
• Quiescent current of 10 µA or less
• Propagation delay of 7ns or less at 3.3V with 50pF load

Physical and Compliance Requirements:

• Surface mount packaging in 20-pin configuration
• ROHS3 compliance
• Moisture sensitivity level of 1 or equivalent
• Operating temperature range of -40°C ~ 85°C

Two substitute parts meet these criteria with varying package specifications and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

SN74LVC374ADBR (Texas Instruments)

This substitute maintains identical electrical specifications and package dimensions to the SN74LVC374ADBRE4. The primary distinction is packaging format: SN74LVC374ADBR is supplied in Cut Tape and Digi-Reel format, whereas the original uses a different packaging variant. Both parts are ROHS3 compliant with MSL 1 rating. This substitute is the direct functional equivalent with active product status and represents the preferred choice for applications requiring exact parameter matching and Texas Instruments sourcing continuity.

MC74LCX374DTR2G (onsemi)

This substitute meets all functional and electrical requirements with enhanced performance characteristics: 150 MHz clock frequency capability versus 100 MHz, and improved propagation delay margin. The package footprint differs—20-TSSOP (0.173", 4.40mm width) versus 20-SSOP (0.209", 5.30mm width)—requiring PCB layout modification. Input capacitance is 7 pF versus 4 pF. Voltage supply minimum is 2V versus 1.65V. This substitute is suitable for applications where PCB redesign is acceptable and where the enhanced clock frequency provides design margin. ROHS3 compliance and MSL 1 rating are maintained.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC374ADBR be used as a direct replacement for SN74LVC374ADBRE4?

A: Yes. Both parts share identical electrical specifications, functional architecture, and 20-SSOP package dimensions. The difference lies in packaging format (tape and reel versus other variants). No circuit modifications are required.

Q: What are the key differences between MC74LCX374DTR2G and the original part?

A: MC74LCX374DTR2G operates at 150 MHz versus 100 MHz, has a slightly longer propagation delay (8.5ns versus 7ns), uses a narrower 20-TSSOP package (0.173" versus 0.209" width), and has a minimum supply voltage of 2V instead of 1.65V. Input capacitance is higher at 7 pF. These differences require PCB layout redesign but do not affect functional compatibility.

Q: Does package size difference affect circuit compatibility?

A: Package size differences do not affect electrical compatibility but require PCB footprint modification. The 20-SSOP and 20-TSSOP packages have identical pin counts and signal assignments but different physical dimensions. PCB layout must be updated to accommodate the selected package.

Q: Are both substitutes RoHS compliant?

A: Yes. Both SN74LVC374ADBR and MC74LCX374DTR2G are ROHS3 compliant with MSL 1 moisture sensitivity rating, matching the original part's compliance status.

Q: Which substitute should be selected for new designs?

A: SN74LVC374ADBR is recommended for designs requiring exact parameter matching and existing PCB layouts. MC74LCX374DTR2G is suitable when PCB redesign is feasible and enhanced clock frequency performance is beneficial.

Q: What is the voltage supply compatibility range for each substitute?

A: SN74LVC374ADBR operates across 1.65V ~ 3.6V, identical to the original. MC74LCX374DTR2G operates across 2V ~ 3.6V, with a higher minimum voltage threshold. Applications requiring operation below 2V must use SN74LVC374ADBR.