SN74F377ADW Equivalent & Substitute Parts

Part Overview

The SN74F377ADW is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, designed for 8-bit parallel data storage and transfer applications. This device features a single element with 8 bits per element, operating at a clock frequency of 125 MHz with a maximum propagation delay of 9ns at 5V with 50pF load. The SN74F377ADW is classified as Last Time Buy, indicating discontinued production status. Identifying equivalent substitute parts is necessary to ensure continued availability for new designs, maintenance, and production continuity.

Substiute Parts

SN74F377ADW

Texas InstrumentsIn Stock: 1659SN74F377ADW Datasheet

Current PartRFQ

SN74F377ADWR

Texas InstrumentsIn Stock: 1109SN74F377ADWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74F377ADW is determined by strict equivalence across the following critical parameters:

• Base product number (74F377) ensuring identical logic function and pin configuration
• Package type (20-SOIC with 0.295" width, 7.50mm) ensuring mechanical and thermal compatibility
• Electrical specifications: Clock frequency (125 MHz), propagation delay (9ns @ 5V, 50pF), supply voltage (4.5V ~ 5.5V), output current ratings (1mA high, 20mA low), and quiescent current (72 mA)
• Trigger type (Positive Edge) and output type (Non-Inverted) ensuring functional equivalence
• Compliance certifications (ROHS3, MSL 1, REACH Unaffected, ECCN EAR99)

The only allowable variation is packaging format (Tube versus Tape & Reel), which does not affect electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The SN74F377ADWR is a direct functional and electrical equivalent to the SN74F377ADW. Both parts share identical electrical specifications, pin configuration, and package dimensions. The primary distinction is product status: the SN74F377ADW is Last Time Buy (discontinued), while the SN74F377ADWR maintains Active status with ongoing manufacturing support from Texas Instruments.

Both parts maintain ROHS3 compliance, MSL Level 1 (unlimited moisture sensitivity), and REACH Unaffected status, ensuring regulatory alignment for current and future applications. The packaging format difference (Tube versus Tape & Reel) does not affect electrical performance or mechanical compatibility in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can SN74F377ADWR replace SN74F377ADW in existing designs?

A: Yes. Both parts are electrically and functionally identical with matching pin configurations, electrical specifications, and package dimensions. The only difference is packaging format and product status.

Q: What is the significance of the packaging format difference (Tube vs. Tape & Reel)?

A: Packaging format affects handling, storage, and automated assembly processes but does not impact electrical performance or circuit compatibility. Tube packaging is suitable for manual handling and small-quantity applications, while Tape & Reel is optimized for high-volume automated assembly.

Q: Why is the SN74F377ADW marked as Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of this part number. The SN74F377ADWR, with Active status, represents the current production equivalent and is recommended for new designs and ongoing procurement.

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

A: No. Both parts maintain identical RoHS3 compliance, MSL Level 1 rating, and REACH Unaffected status, ensuring regulatory equivalence for all applications.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is determined by matching base product number (74F377), package type (20-SOIC), electrical specifications (125 MHz clock frequency, 9ns propagation delay, 4.5V-5.5V supply), trigger type (Positive Edge), output type (Non-Inverted), and compliance certifications.