74F374MSAX Equivalent & Substitute Parts

Part Overview

The 74F374MSAX is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component operates at a maximum clock frequency of 140 MHz with a propagation delay of 8.5ns at 5V with 50pF load. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and procurement.

Substiute Parts

74F374MSAX

onsemiIn Stock: 74674F374MSAX Datasheet

Current PartRFQ

SN74F374DBR

Texas InstrumentsIn Stock: 3061SN74F374DBR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74F374MSAX is determined by strict equivalence across the following critical parameters:

Functional Parameters:

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

Electrical Parameters:

• Supply voltage range: 4.5V ~ 5.5V
• Output current specifications: 3mA (high) / 24mA (low)
• Propagation delay: 8.5ns @ 5V, 50pF load
• Operating temperature range: 0°C ~ 70°C

Physical Parameters:

• Package type: 20-SSOP (0.209", 5.30mm Width)
• Surface mount mounting type

Series Compatibility:

• 74F logic series designation

The SN74F374DBR from Texas Instruments meets all substitution criteria across these parameters, establishing direct functional and electrical equivalence with the 74F374MSAX.

Parameter Comparison

*Compatible: SN74F374DBR maximum clock frequency of 100 MHz is lower than 74F374MSAX specification of 140 MHz. This difference is acceptable for applications operating below 100 MHz.

Engineering Selection Recommendations

The SN74F374DBR from Texas Instruments is the direct substitute for the obsolete 74F374MSAX. Selection is based on the following factors:

Product Status: The 74F374MSAX is classified as obsolete. The SN74F374DBR maintains active product status with Texas Instruments, ensuring long-term availability and supply chain continuity.

Compliance & Certifications: The SN74F374DBR is ROHS3 compliant, meeting current environmental and regulatory requirements. Both parts maintain REACH unaffected status and EAR99 export classification.

Electrical & Functional Equivalence: All critical electrical parameters, functional specifications, and output characteristics are identical between the two parts. The propagation delay, output current ratings, supply voltage range, and operating temperature specifications are fully matched.

Package Compatibility: Both components utilize the identical 20-SSOP (0.209", 5.30mm Width) surface mount package, enabling direct PCB-level substitution without layout modifications.

Clock Frequency Consideration: The SN74F374DBR operates at a maximum clock frequency of 100 MHz compared to the 74F374MSAX specification of 140 MHz. This specification difference does not impact applications designed for operation below 100 MHz. Applications requiring operation above 100 MHz must evaluate timing margins against actual system clock frequencies.

Frequently Asked Questions (FAQ)

Q: Can the SN74F374DBR be used as a direct replacement for the 74F374MSAX in existing designs?

A: Yes. The SN74F374DBR is electrically and functionally equivalent to the 74F374MSAX across all specified parameters. The identical package type (20-SSOP) and pin configuration enable direct substitution without PCB modifications or design changes.

Q: What is the significance of the clock frequency difference between these parts?

A: The 74F374MSAX specifies a maximum clock frequency of 140 MHz, while the SN74F374DBR specifies 100 MHz. This difference reflects manufacturer specifications but does not affect compatibility in applications operating below 100 MHz. Applications with clock frequencies between 100 MHz and 140 MHz must verify timing margins against actual system requirements.

Q: Are there any compliance or regulatory differences between these parts?

A: The SN74F374DBR is ROHS3 compliant, meeting current environmental standards. Both parts maintain REACH unaffected status and identical export classifications (EAR99). The SN74F374DBR is the preferred choice for new designs and applications requiring current compliance certifications.

Q: What is the packaging difference between the 74F374MSAX and SN74F374DBR?

A: Both parts are supplied in the 20-SSOP (0.209", 5.30mm Width) surface mount package. The 74F374MSAX is available in standard packaging, while the SN74F374DBR is supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical performance or PCB-level compatibility.

Q: Is the SN74F374DBR available in higher quantities than the 74F374MSAX?

A: The SN74F374DBR maintains active product status with 3000 pieces in stock, compared to 732 pieces of the obsolete 74F374MSAX. The active status and higher inventory levels of the SN74F374DBR support reliable long-term procurement.

Q: What are the key parameters that determine substitution eligibility for this component?

A: Substitution is determined by equivalence across D-Type flip-flop architecture, 1 element with 8-bit configuration, tri-state non-inverted output type, positive edge trigger mechanism, 4.5V ~ 5.5V supply voltage, 8.5ns propagation delay at 5V with 50pF load, 3mA/24mA output current ratings, 0°C ~ 70°C operating temperature range, and 20-SSOP surface mount package type.