74F377SC Equivalent & Substitute Parts

Part Overview

The 74F377SC is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit parallel data storage capability. This component operates as a standard positive edge-triggered flip-flop in a 20-SOIC surface mount package. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74F377SC

onsemiIn Stock: 233174F377SC Datasheet

Current PartRFQ

SN74F377ADW

Texas InstrumentsIn Stock: 1659SN74F377ADW Datasheet

DirectRFQ

SN74F377ADWR

Texas InstrumentsIn Stock: 1109SN74F377ADWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74F377SC are qualified based on the following electrical and mechanical parameters:

• Identical logic function: D-Type flip-flop with 1 element and 8-bit configuration
• Matching package: 20-SOIC (0.295", 7.50mm Width) surface mount
• Compatible voltage supply range: 4.5V ~ 5.5V
• Identical trigger type: Positive edge-triggered
• Identical output type: Non-Inverted
• Matching operating temperature range: 0°C ~ 70°C (TA)
• Same base product number: 74F377

The substitute parts SN74F377ADW and SN74F377ADWR, both manufactured by Texas Instruments, meet all these criteria and are therefore electrically and mechanically interchangeable with the 74F377SC.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the 74F377SC, the following selection criteria apply:

SN74F377ADWR (Texas Instruments) is the primary substitute. This part carries Active product status, ensuring long-term availability and supply chain stability. It is RoHS3 compliant and supplied in Tape & Reel packaging, suitable for automated assembly processes. The part meets all electrical and mechanical compatibility requirements with the 74F377SC.

SN74F377ADW (Texas Instruments) is an alternative substitute with Last Time Buy status. This part is supplied in Tube packaging and is also RoHS3 compliant. It provides equivalent electrical performance and mechanical compatibility but with limited future availability.

Both Texas Instruments substitutes exhibit slightly higher quiescent current (72 mA versus 48 mA) and marginally longer propagation delay (9ns versus 7ns) compared to the 74F377SC. These differences remain within acceptable tolerances for standard logic applications operating within the specified voltage and temperature ranges.

Frequently Asked Questions (FAQ)

Q: Can SN74F377ADW and SN74F377ADWR be used interchangeably with 74F377SC?

A: Yes. Both parts are electrically and mechanically equivalent. They share identical logic function, package type (20-SOIC), voltage supply range (4.5V ~ 5.5V), operating temperature range (0°C ~ 70°C), and output characteristics. The primary difference is packaging format (Tube versus Tape & Reel) and product lifecycle status.

Q: What are the differences between SN74F377ADW and SN74F377ADWR?

A: Both parts are functionally identical. The difference is packaging: SN74F377ADW is supplied in Tube packaging, while SN74F377ADWR is supplied in Tape & Reel format. SN74F377ADWR has Active product status, while SN74F377ADW is Last Time Buy. For new designs, SN74F377ADWR is recommended.

Q: Are there performance differences between the 74F377SC and its substitutes?

A: The Texas Instruments substitutes exhibit slightly higher quiescent current (72 mA versus 48 mA) and propagation delay (9ns versus 7ns). These differences are minor and do not affect functional compatibility in standard logic applications.

Q: Is the 20-SOIC package identical across all three parts?

A: Yes. All three parts use the 20-SOIC (0.295", 7.50mm Width) package. They are pin-compatible and footprint-compatible for PCB assembly.

Q: What compliance certifications apply to the substitute parts?

A: Both SN74F377ADW and SN74F377ADWR are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.