SN74LS374DWRG4 Equivalent & Substitute Parts

Part Overview

The SN74LS374DWRG4 is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component is classified as a standard logic device within the 74LS series and operates at a maximum clock frequency of 50 MHz with a propagation delay of 28ns at 5V with 45pF load.

The SN74LS374DWRG4 has been discontinued at DiGi Electronics. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production, repair, and ongoing system support.

Substiute Parts

SN74LS374DWRG4

Texas InstrumentsIn Stock: 1104SN74LS374DWRG4 Datasheet

Current PartRFQ

SN74LS374DWR

Texas InstrumentsIn Stock: 2071SN74LS374DWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LS374DWRG4 is determined by strict equivalence across the following critical parameters:

• Logic Function: D-Type flip-flop with 1 element, 8-bit configuration
• Output Configuration: Tri-state, non-inverted output
• Electrical Performance: Clock frequency of 50 MHz, propagation delay of 28ns @ 5V with 45pF load
• Trigger Mechanism: Positive edge triggering
• Supply Voltage: 4.75V ~ 5.25V operating range
• Quiescent Current: 40 mA maximum
• Output Current Ratings: 2.6mA (high), 24mA (low)
• Package Format: 20-SOIC surface mount package with 0.295" (7.50mm) width
• Compliance Standards: ROHS3 compliant, MSL Level 1

Substitute parts must match all electrical and mechanical parameters without deviation. Packaging format and mounting type are non-negotiable for direct board-level replacement.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS374DWR is the direct functional equivalent of the SN74LS374DWRG4. Both components are manufactured by Texas Instruments and share identical electrical specifications, logic function, and package format. The primary distinction is product status: the SN74LS374DWRG4 is discontinued, while the SN74LS374DWR maintains active status with current inventory availability.

Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards. The SN74LS374DWR is supplied in Tape & Reel packaging, which is standard for production environments, whereas the original part was supplied in tube packaging.

For new designs, production runs, and component replenishment, the SN74LS374DWR is the appropriate selection. No electrical or functional modifications to circuit design are required when transitioning from the SN74LS374DWRG4 to the SN74LS374DWR.

Frequently Asked Questions (FAQ)

Q: Can the SN74LS374DWR be used as a direct replacement for the SN74LS374DWRG4?

A: Yes. Both components are electrically and functionally identical. They share the same logic function, electrical specifications, propagation delay, supply voltage range, output current ratings, and 20-SOIC package format. Direct board-level substitution is possible without circuit modification.

Q: What is the difference between the SN74LS374DWRG4 and SN74LS374DWR?

A: The primary difference is packaging format and product status. The SN74LS374DWRG4 was supplied in tube packaging and is now discontinued. The SN74LS374DWR is supplied in Tape & Reel format and maintains active production status. All electrical and functional parameters are identical.

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

A: No. Both parts are ROHS3 compliant and carry MSL Level 1 rating. They meet identical environmental and regulatory standards.

Q: Does the Tape & Reel packaging of the SN74LS374DWR affect circuit performance?

A: No. Packaging format does not affect electrical performance or functional operation. Tape & Reel packaging is standard for automated assembly processes and provides equivalent component quality and reliability.

Q: Can the SN74LS374DWR be used in existing inventory systems designed for the SN74LS374DWRG4?

A: Yes, provided the assembly process supports Tape & Reel component feeding. The component itself is functionally identical and compatible with all circuit designs using the original part number.

Q: What is the base product number for these components?

A: The base product number is 74LS374, which identifies the core logic function. Both the SN74LS374DWRG4 and SN74LS374DWR are variants of this base product with identical functional specifications.